diff --git a/.gitignore b/.gitignore
index 2652053..d4b518a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 y.output
+.idea
diff --git a/parse_test.go b/parse_test.go
index ac65962..61ab702 100644
--- a/parse_test.go
+++ b/parse_test.go
@@ -1894,6 +1894,34 @@ func TestCreateTable(t *testing.T) {
 			"	unique by_username3 (username) key_block_size 4\n" +
 			")",
 	},
+		{
+			// test anonymous key definition
+			input: "create table t (\n" +
+				"	id int auto_increment,\n" +
+				"	username varchar,\n" +
+				"	email varchar,\n" +
+				"	primary key (id),\n" +
+				"	key (username)\n" +
+				")",
+			output: "create table t (\n" +
+				"	id int auto_increment,\n" +
+				"	username varchar,\n" +
+				"	email varchar,\n" +
+				"	primary key (id),\n" +
+				"	key username (username)\n" +
+				")",
+		},
+		{
+			// test signed col
+			input: "create table t (\n" +
+				"	id int auto_increment,\n" +
+				"	col_tinyint3_signed tinyint(3) signed\n" +
+				")",
+			output: "create table t (\n" +
+				"	id int auto_increment,\n" +
+				"	col_tinyint3_signed tinyint(3)\n" +
+				")",
+		},
 	}
 	for _, tcase := range testCases {
 		tree, err := ParseStrictDDL(tcase.input)
diff --git a/sql.go b/sql.go
index 4c8f265..aa1996e 100644
--- a/sql.go
+++ b/sql.go
@@ -1,9 +1,12 @@
+// Code generated by goyacc -o sql.go sql.y. DO NOT EDIT.
+
 //line sql.y:18
 package sqlparser
 
 import __yyfmt__ "fmt"
 
 //line sql.y:18
+
 func setParseTree(yylex interface{}, stmt Statement) {
 	yylex.(*Tokenizer).ParseTree = stmt
 }
@@ -596,572 +599,610 @@ var yyExca = [...]int{
 	5, 27,
 	-2, 4,
 	-1, 36,
-	150, 263,
-	151, 263,
-	-2, 253,
+	150, 265,
+	151, 265,
+	-2, 255,
 	-1, 238,
-	109, 587,
-	-2, 583,
+	109, 589,
+	-2, 585,
 	-1, 239,
-	109, 588,
-	-2, 584,
+	109, 590,
+	-2, 586,
 	-1, 308,
-	80, 746,
+	80, 748,
 	-2, 58,
 	-1, 309,
-	80, 707,
+	80, 709,
 	-2, 59,
 	-1, 314,
-	80, 691,
-	-2, 549,
-	-1, 316,
-	80, 728,
+	80, 693,
 	-2, 551,
+	-1, 316,
+	80, 730,
+	-2, 553,
 	-1, 575,
 	52, 41,
 	54, 41,
 	-2, 43,
 	-1, 708,
-	109, 590,
-	-2, 586,
-	-1, 912,
+	109, 592,
+	-2, 588,
+	-1, 913,
 	5, 28,
-	-2, 395,
-	-1, 937,
+	-2, 397,
+	-1, 938,
 	5, 27,
-	-2, 524,
-	-1, 1161,
+	-2, 526,
+	-1, 1162,
 	5, 28,
-	-2, 525,
-	-1, 1205,
-	5, 27,
 	-2, 527,
-	-1, 1267,
+	-1, 1206,
+	5, 27,
+	-2, 529,
+	-1, 1268,
 	5, 28,
-	-2, 528,
+	-2, 530,
 }
 
 const yyPrivate = 57344
 
-const yyLast = 10949
+const yyLast = 11097
 
 var yyAct = [...]int{
 
-	269, 47, 770, 854, 1258, 522, 646, 1069, 1216, 1097,
-	810, 1070, 268, 521, 3, 243, 1167, 834, 998, 788,
-	806, 217, 569, 1066, 809, 53, 848, 771, 956, 1043,
-	743, 567, 313, 904, 989, 945, 211, 410, 585, 710,
-	455, 940, 733, 1001, 820, 740, 461, 584, 47, 844,
-	307, 556, 571, 767, 294, 759, 222, 467, 475, 886,
-	241, 216, 299, 226, 52, 304, 1287, 1277, 1285, 1265,
-	302, 1283, 855, 442, 1276, 1061, 1155, 414, 435, 1225,
-	212, 213, 214, 215, 295, 871, 1103, 1104, 1105, 1091,
-	230, 1092, 1093, 293, 1108, 1106, 586, 1264, 587, 870,
-	181, 177, 178, 179, 57, 536, 1240, 488, 487, 497,
-	498, 490, 491, 492, 493, 494, 495, 496, 489, 964,
-	801, 499, 963, 802, 803, 965, 875, 245, 450, 59,
-	60, 61, 62, 63, 980, 869, 827, 310, 675, 1179,
-	423, 437, 1194, 439, 835, 676, 1144, 1142, 210, 1284,
-	232, 446, 447, 1282, 1259, 1022, 768, 424, 417, 1217,
-	1044, 1223, 174, 175, 175, 822, 654, 239, 436, 438,
-	420, 645, 1219, 822, 789, 791, 955, 954, 953, 412,
-	189, 176, 1245, 866, 863, 864, 1164, 862, 1030, 298,
-	1046, 511, 512, 974, 441, 441, 441, 441, 76, 441,
-	920, 1019, 186, 898, 682, 186, 441, 1021, 479, 180,
-	430, 1112, 873, 876, 489, 807, 822, 499, 499, 881,
-	679, 1026, 1048, 47, 1052, 742, 1047, 472, 1045, 186,
-	186, 76, 1009, 1050, 474, 186, 464, 76, 508, 1218,
-	1250, 510, 1049, 474, 411, 1122, 463, 868, 790, 434,
-	473, 472, 943, 588, 1107, 1051, 1053, 821, 1224, 1222,
-	1007, 1113, 1241, 835, 828, 821, 1063, 474, 520, 867,
-	524, 525, 526, 527, 528, 529, 530, 531, 532, 760,
+	269, 47, 1259, 855, 646, 770, 243, 522, 1217, 1098,
+	521, 3, 806, 1070, 268, 788, 1071, 810, 1168, 849,
+	999, 567, 809, 771, 217, 569, 835, 1067, 957, 1044,
+	905, 946, 53, 211, 743, 733, 740, 1002, 585, 990,
+	759, 941, 455, 313, 820, 845, 410, 461, 47, 710,
+	307, 767, 571, 556, 295, 584, 222, 467, 216, 294,
+	241, 887, 299, 475, 226, 304, 52, 302, 1288, 1278,
+	1286, 1266, 1284, 856, 1277, 1062, 1156, 212, 213, 214,
+	215, 414, 965, 293, 435, 964, 1226, 1092, 966, 1093,
+	1094, 586, 536, 587, 230, 1241, 488, 487, 497, 498,
+	490, 491, 492, 493, 494, 495, 496, 489, 1265, 57,
+	499, 1104, 1105, 1106, 801, 181, 177, 178, 179, 1109,
+	1107, 802, 803, 675, 450, 981, 828, 827, 1180, 1195,
+	676, 423, 836, 1145, 59, 60, 61, 62, 63, 1143,
+	210, 446, 447, 1285, 1283, 1260, 1023, 437, 232, 439,
+	768, 424, 1045, 417, 488, 487, 497, 498, 490, 491,
+	492, 493, 494, 495, 496, 489, 1218, 239, 499, 1224,
+	789, 791, 175, 822, 436, 438, 174, 822, 175, 1220,
+	829, 654, 1047, 645, 956, 955, 954, 412, 420, 189,
+	176, 511, 512, 1246, 441, 441, 441, 441, 76, 441,
+	906, 975, 186, 1165, 822, 186, 441, 1031, 872, 921,
+	899, 682, 742, 479, 1049, 430, 1053, 1010, 1048, 882,
+	1046, 807, 871, 47, 180, 1051, 679, 499, 1251, 186,
+	186, 76, 411, 464, 1050, 186, 489, 76, 508, 499,
+	472, 510, 474, 1113, 790, 1008, 1219, 1052, 1054, 876,
+	836, 1242, 1027, 463, 1020, 434, 474, 440, 870, 1123,
+	1022, 944, 588, 1064, 760, 821, 1225, 1223, 520, 821,
+	524, 525, 526, 527, 528, 529, 530, 531, 532, 1108,
 	535, 537, 537, 537, 537, 537, 537, 537, 537, 545,
-	546, 547, 548, 1263, 760, 649, 927, 1025, 882, 1020,
-	568, 1018, 685, 686, 1253, 978, 872, 469, 821, 416,
-	1009, 717, 236, 819, 817, 1269, 1185, 818, 1184, 874,
-	426, 427, 428, 453, 1008, 715, 716, 714, 465, 1013,
-	1010, 1003, 1004, 1011, 1006, 1005, 993, 50, 1007, 992,
-	824, 916, 186, 915, 186, 825, 1012, 713, 473, 472,
-	186, 981, 1015, 700, 702, 703, 917, 186, 701, 473,
-	472, 76, 76, 76, 76, 474, 76, 173, 509, 458,
-	462, 582, 576, 76, 1270, 1251, 474, 473, 472, 310,
-	1201, 418, 419, 734, 1065, 735, 480, 538, 539, 540,
-	541, 542, 543, 544, 474, 895, 896, 897, 1182, 1130,
-	76, 990, 1008, 1248, 473, 472, 1100, 1013, 1010, 1003,
-	1004, 1011, 1006, 1005, 441, 1273, 454, 1209, 1256, 454,
-	523, 474, 441, 1099, 1012, 1209, 454, 298, 292, 534,
-	1002, 1209, 1210, 441, 441, 441, 441, 441, 441, 441,
-	441, 1176, 1175, 1088, 454, 1163, 454, 441, 441, 487,
-	497, 498, 490, 491, 492, 493, 494, 495, 496, 489,
-	186, 1229, 499, 663, 1119, 1118, 267, 186, 186, 186,
-	1115, 1116, 1228, 76, 1115, 1114, 1151, 454, 1109, 76,
-	910, 454, 50, 975, 966, 687, 857, 553, 454, 941,
-	661, 745, 454, 21, 736, 711, 660, 74, 497, 498,
-	490, 491, 492, 493, 494, 495, 496, 489, 659, 650,
-	499, 47, 708, 488, 487, 497, 498, 490, 491, 492,
-	493, 494, 495, 496, 489, 524, 648, 499, 643, 689,
-	312, 595, 594, 942, 432, 704, 415, 425, 747, 706,
-	411, 1067, 579, 681, 941, 752, 755, 54, 745, 221,
-	23, 761, 1159, 707, 299, 299, 299, 299, 299, 513,
-	514, 515, 516, 517, 518, 519, 23, 553, 772, 568,
-	1121, 792, 737, 738, 935, 553, 942, 936, 299, 680,
-	1117, 76, 747, 580, 967, 578, 910, 186, 186, 76,
-	757, 186, 764, 1204, 186, 473, 472, 50, 186, 23,
-	76, 76, 76, 76, 76, 76, 76, 76, 773, 796,
-	712, 776, 474, 50, 76, 76, 785, 552, 941, 186,
-	795, 1033, 578, 697, 698, 793, 836, 837, 838, 794,
-	922, 799, 798, 814, 76, 800, 910, 919, 186, 774,
-	775, 553, 777, 581, 76, 683, 50, 1189, 829, 441,
-	849, 441, 1082, 223, 970, 310, 946, 947, 647, 441,
-	312, 312, 312, 312, 910, 312, 845, 840, 811, 850,
-	839, 65, 312, 921, 852, 523, 1102, 952, 750, 751,
-	918, 298, 298, 298, 298, 298, 1067, 76, 994, 846,
-	847, 558, 561, 562, 563, 559, 298, 560, 564, 477,
-	50, 946, 947, 949, 657, 298, 451, 695, 899, 492,
-	493, 494, 495, 496, 489, 708, 951, 499, 186, 779,
-	778, 186, 186, 186, 186, 186, 782, 711, 888, 780,
-	887, 783, 883, 186, 781, 784, 186, 562, 563, 805,
-	186, 227, 228, 1281, 1275, 186, 186, 1029, 1280, 76,
-	468, 748, 749, 893, 900, 892, 707, 756, 456, 1157,
-	985, 593, 76, 433, 466, 977, 1255, 1190, 938, 939,
-	457, 763, 312, 765, 766, 1254, 1202, 971, 590, 859,
-	656, 937, 258, 257, 260, 261, 262, 263, 688, 566,
-	468, 259, 264, 218, 709, 1234, 299, 718, 719, 720,
-	721, 722, 723, 724, 725, 726, 727, 728, 729, 730,
-	731, 732, 950, 186, 926, 219, 76, 54, 76, 1233,
-	968, 891, 186, 224, 225, 186, 76, 959, 1192, 890,
-	942, 884, 885, 470, 462, 1242, 958, 1180, 960, 961,
-	678, 56, 712, 58, 577, 744, 746, 51, 982, 983,
-	1, 856, 997, 865, 441, 984, 1257, 986, 987, 988,
-	1215, 762, 1096, 972, 973, 816, 808, 409, 830, 831,
-	832, 833, 64, 1249, 815, 991, 1221, 1178, 823, 441,
-	312, 979, 826, 811, 841, 842, 843, 1101, 312, 1252,
-	976, 787, 600, 598, 599, 597, 911, 602, 1000, 312,
-	312, 312, 312, 312, 312, 312, 312, 1014, 601, 596,
-	197, 928, 305, 312, 312, 558, 561, 562, 563, 559,
-	894, 560, 564, 298, 565, 589, 851, 471, 66, 999,
-	1017, 1016, 861, 691, 1024, 1037, 674, 1072, 1068, 47,
-	880, 1042, 449, 477, 199, 1036, 312, 1055, 507, 1071,
-	1062, 772, 1073, 708, 1084, 1085, 1086, 772, 889, 1054,
-	76, 962, 311, 186, 1074, 684, 1077, 909, 1076, 1078,
-	460, 1232, 1035, 1191, 925, 533, 758, 76, 244, 699,
-	1095, 256, 253, 924, 1089, 255, 739, 254, 690, 934,
-	481, 242, 1094, 234, 1058, 297, 753, 753, 549, 557,
-	555, 1090, 753, 1110, 1111, 490, 491, 492, 493, 494,
-	495, 496, 489, 554, 948, 499, 944, 296, 1032, 753,
-	76, 76, 1154, 76, 1239, 694, 25, 55, 901, 902,
-	903, 229, 19, 18, 299, 17, 20, 16, 1123, 15,
-	14, 811, 29, 811, 13, 12, 76, 11, 312, 186,
-	186, 1125, 10, 9, 1128, 8, 7, 186, 6, 5,
-	907, 312, 1153, 4, 908, 1133, 76, 220, 22, 2,
-	0, 912, 913, 914, 1132, 1140, 0, 0, 1064, 0,
-	923, 0, 0, 0, 0, 929, 0, 930, 931, 932,
-	933, 0, 1158, 1079, 1080, 0, 0, 1081, 0, 1166,
-	1083, 1169, 1170, 1171, 1035, 968, 76, 76, 0, 0,
-	1172, 1174, 0, 0, 0, 312, 0, 312, 0, 0,
-	0, 441, 0, 0, 0, 312, 0, 0, 0, 0,
-	0, 0, 1181, 1188, 1183, 76, 0, 76, 76, 0,
-	1187, 0, 0, 0, 0, 0, 0, 0, 0, 312,
-	0, 0, 0, 0, 0, 0, 1193, 0, 0, 0,
-	1072, 298, 186, 1206, 0, 0, 0, 0, 811, 0,
-	76, 1203, 1071, 0, 0, 0, 1205, 1131, 0, 0,
-	0, 0, 0, 76, 186, 0, 1220, 0, 0, 0,
-	76, 1231, 1214, 0, 0, 999, 811, 0, 76, 0,
-	0, 186, 1226, 0, 1227, 1072, 1230, 47, 0, 0,
-	0, 0, 1243, 0, 0, 0, 1156, 1071, 1039, 1040,
-	1244, 0, 0, 523, 1247, 0, 0, 0, 0, 0,
-	0, 1056, 1057, 1041, 1059, 1060, 0, 0, 0, 459,
-	1261, 0, 0, 0, 0, 1266, 0, 440, 0, 0,
-	76, 0, 76, 76, 76, 186, 76, 0, 772, 957,
-	0, 0, 76, 1271, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 184, 1278, 312, 209, 1279, 0,
-	1087, 0, 0, 0, 0, 1286, 0, 0, 76, 76,
-	76, 0, 0, 300, 0, 0, 0, 0, 0, 233,
-	0, 184, 184, 0, 0, 0, 0, 184, 0, 1137,
-	1138, 0, 1139, 0, 0, 1141, 0, 1143, 0, 995,
-	312, 0, 312, 0, 0, 0, 0, 0, 183, 0,
-	0, 76, 76, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 76, 312, 0, 0, 0, 0,
-	0, 1135, 0, 0, 0, 0, 303, 76, 0, 0,
-	1134, 413, 0, 1177, 0, 312, 0, 1136, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 76, 1145, 1146,
-	1147, 0, 0, 1150, 1260, 523, 0, 312, 0, 0,
-	0, 0, 0, 0, 0, 0, 1160, 1161, 1162, 195,
-	1165, 0, 753, 0, 0, 1075, 957, 0, 753, 0,
-	0, 0, 0, 76, 184, 0, 184, 0, 0, 0,
-	0, 0, 184, 205, 0, 0, 0, 76, 0, 184,
-	0, 0, 0, 0, 312, 0, 312, 1098, 0, 0,
-	0, 0, 443, 444, 445, 0, 448, 0, 0, 0,
-	0, 0, 0, 452, 0, 0, 0, 0, 0, 0,
-	0, 1195, 1196, 0, 1197, 1198, 1199, 0, 421, 1124,
-	422, 0, 0, 190, 0, 0, 429, 0, 1200, 192,
-	0, 0, 1126, 431, 0, 0, 198, 194, 0, 1129,
-	0, 0, 0, 1211, 1212, 1213, 0, 312, 0, 0,
-	488, 487, 497, 498, 490, 491, 492, 493, 494, 495,
-	496, 489, 0, 196, 499, 0, 200, 0, 0, 1235,
-	1236, 1237, 1238, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 184, 0, 0, 0, 0, 0, 0, 184,
-	573, 184, 0, 0, 191, 0, 905, 0, 0, 1168,
-	0, 1168, 1168, 1168, 0, 1173, 0, 0, 0, 0,
-	0, 312, 0, 1262, 454, 0, 0, 0, 1267, 0,
-	0, 193, 1152, 201, 202, 203, 204, 208, 1148, 454,
-	0, 1272, 207, 206, 0, 0, 551, 312, 312, 312,
-	0, 0, 0, 0, 0, 575, 0, 0, 0, 1288,
-	488, 487, 497, 498, 490, 491, 492, 493, 494, 495,
-	496, 489, 1290, 1291, 499, 488, 487, 497, 498, 490,
+	546, 547, 548, 1114, 824, 760, 821, 928, 883, 825,
+	568, 819, 817, 649, 1264, 818, 867, 864, 865, 1009,
+	863, 426, 427, 428, 1014, 1011, 1004, 1005, 1012, 1007,
+	1006, 979, 416, 1254, 453, 717, 473, 472, 1026, 469,
+	917, 1013, 916, 465, 1270, 874, 877, 1016, 1186, 715,
+	716, 714, 186, 474, 186, 50, 681, 1271, 473, 472,
+	186, 1252, 1021, 1185, 1019, 713, 173, 186, 896, 897,
+	898, 76, 76, 76, 76, 474, 76, 458, 462, 576,
+	869, 582, 994, 76, 538, 539, 540, 541, 542, 543,
+	544, 734, 680, 735, 480, 492, 493, 494, 495, 496,
+	489, 993, 868, 499, 418, 419, 982, 918, 473, 472,
+	76, 1202, 1010, 487, 497, 498, 490, 491, 492, 493,
+	494, 495, 496, 489, 441, 474, 499, 292, 523, 1183,
+	1131, 991, 441, 1249, 685, 686, 1101, 534, 1100, 873,
+	1008, 1274, 454, 441, 441, 441, 441, 441, 441, 441,
+	441, 976, 875, 1210, 1257, 473, 472, 441, 441, 1210,
+	454, 267, 443, 444, 445, 967, 448, 858, 473, 472,
+	186, 736, 474, 452, 660, 1066, 659, 186, 186, 186,
+	473, 472, 650, 76, 663, 474, 700, 702, 703, 76,
+	648, 701, 74, 1210, 1211, 1177, 1176, 474, 687, 1089,
+	454, 454, 661, 643, 1009, 1164, 454, 711, 432, 1014,
+	1011, 1004, 1005, 1012, 1007, 1006, 1120, 1119, 1116, 1117,
+	21, 47, 1116, 1115, 1230, 312, 1013, 911, 454, 553,
+	454, 415, 1003, 708, 425, 524, 745, 454, 1229, 442,
+	689, 595, 594, 579, 411, 747, 752, 755, 23, 1110,
+	704, 706, 761, 490, 491, 492, 493, 494, 495, 496,
+	489, 552, 1034, 499, 299, 299, 299, 299, 299, 772,
+	1068, 942, 936, 942, 745, 937, 221, 1160, 923, 568,
+	23, 792, 737, 738, 580, 553, 578, 920, 299, 747,
+	553, 76, 943, 764, 54, 50, 943, 186, 186, 76,
+	757, 186, 1122, 310, 186, 911, 23, 1205, 186, 796,
+	76, 76, 76, 76, 76, 76, 76, 76, 1118, 774,
+	775, 922, 777, 773, 76, 76, 776, 50, 785, 186,
+	919, 697, 698, 911, 553, 793, 968, 794, 942, 795,
+	800, 578, 798, 911, 76, 837, 838, 839, 186, 799,
+	581, 683, 814, 50, 76, 312, 312, 312, 312, 441,
+	312, 441, 223, 50, 1190, 830, 850, 312, 1083, 441,
+	971, 647, 851, 947, 948, 258, 257, 260, 261, 262,
+	263, 644, 846, 523, 259, 264, 750, 751, 841, 653,
+	840, 65, 853, 1103, 477, 847, 848, 76, 1068, 995,
+	664, 665, 666, 667, 668, 669, 670, 671, 950, 50,
+	657, 451, 782, 953, 672, 673, 695, 783, 900, 558,
+	561, 562, 563, 559, 952, 560, 564, 779, 186, 947,
+	948, 186, 186, 186, 186, 186, 708, 780, 778, 711,
+	889, 888, 781, 186, 227, 228, 186, 805, 748, 749,
+	186, 1282, 1276, 1030, 756, 186, 186, 884, 784, 76,
+	562, 563, 468, 1281, 894, 893, 986, 312, 763, 245,
+	765, 766, 76, 590, 901, 593, 466, 456, 939, 940,
+	558, 561, 562, 563, 559, 433, 560, 564, 938, 457,
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+	169, 133, 95, 160, 398, 388, 0, 360, 400, 338,
+	352, 408, 353, 354, 381, 324, 368, 125, 350, 0,
+	341, 319, 347, 320, 339, 362, 93, 365, 337, 390,
+	371, 107, 406, 109, 376, 0, 142, 118, 0, 0,
+	364, 392, 366, 386, 359, 382, 329, 375, 401, 351,
+	379, 402, 0, 0, 0, 75, 0, 0, 0, 0,
+	0, 0, 0, 0, 86, 0, 378, 397, 349, 380,
+	318, 377, 0, 322, 325, 407, 395, 344, 345, 0,
+	0, 0, 0, 0, 0, 0, 363, 367, 383, 357,
+	0, 0, 0, 0, 0, 0, 0, 0, 342, 0,
+	374, 0, 0, 0, 326, 323, 0, 361, 0, 0,
+	0, 328, 0, 343, 384, 0, 317, 387, 393, 358,
+	187, 396, 356, 355, 399, 131, 0, 0, 145, 98,
+	97, 106, 391, 340, 348, 89, 346, 137, 127, 157,
+	373, 128, 136, 110, 149, 132, 156, 188, 164, 147,
+	163, 78, 146, 583, 87, 139, 80, 153, 144, 116,
+	102, 103, 79, 0, 135, 92, 96, 91, 124, 150,
+	151, 90, 171, 83, 162, 82, 315, 161, 123, 148,
+	154, 117, 114, 81, 152, 115, 113, 105, 94, 99,
+	129, 112, 130, 100, 120, 119, 121, 0, 321, 0,
+	143, 159, 172, 336, 394, 165, 166, 167, 168, 0,
+	0, 0, 316, 314, 101, 140, 104, 111, 134, 170,
+	126, 138, 88, 158, 141, 332, 335, 330, 331, 369,
+	370, 403, 404, 405, 385, 327, 0, 333, 334, 0,
+	389, 372, 77, 0, 108, 169, 133, 95, 160, 398,
+	388, 0, 360, 400, 338, 352, 408, 353, 354, 381,
+	324, 368, 125, 350, 0, 341, 319, 347, 320, 339,
+	362, 93, 365, 337, 390, 371, 107, 406, 109, 376,
+	0, 142, 118, 0, 0, 364, 392, 366, 386, 359,
+	382, 329, 375, 401, 351, 379, 402, 0, 0, 0,
+	75, 0, 0, 0, 0, 0, 0, 0, 0, 86,
+	0, 378, 397, 349, 380, 318, 377, 0, 322, 325,
+	407, 395, 344, 345, 0, 0, 0, 0, 0, 0,
+	0, 363, 367, 383, 357, 0, 0, 0, 0, 0,
+	0, 0, 0, 342, 0, 374, 0, 0, 0, 326,
+	323, 0, 361, 0, 0, 0, 328, 0, 343, 384,
+	0, 317, 387, 393, 358, 187, 396, 356, 355, 399,
+	131, 0, 0, 145, 98, 97, 106, 391, 340, 348,
+	89, 346, 137, 127, 157, 373, 128, 136, 110, 149,
+	132, 156, 188, 164, 147, 163, 78, 146, 306, 87,
+	139, 80, 153, 144, 116, 102, 103, 79, 0, 135,
+	92, 96, 91, 124, 150, 151, 90, 171, 83, 162,
+	82, 315, 161, 123, 148, 154, 117, 114, 81, 152,
+	115, 113, 105, 94, 99, 129, 112, 130, 100, 120,
+	119, 121, 0, 321, 0, 143, 159, 172, 336, 394,
+	165, 166, 167, 168, 0, 0, 0, 316, 314, 309,
+	308, 104, 111, 134, 170, 126, 138, 88, 158, 141,
+	332, 335, 330, 331, 369, 370, 403, 404, 405, 385,
+	327, 0, 333, 334, 0, 389, 372, 77, 0, 108,
+	169, 133, 95, 160, 125, 0, 0, 741, 0, 240,
+	0, 0, 0, 93, 0, 237, 0, 0, 107, 279,
+	109, 0, 0, 142, 118, 0, 0, 0, 0, 270,
+	271, 0, 0, 0, 0, 0, 0, 0, 0, 50,
+	0, 0, 238, 258, 257, 260, 261, 262, 263, 0,
+	0, 86, 259, 264, 265, 266, 0, 0, 235, 251,
+	0, 278, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 248, 249, 231, 0, 0, 0, 290, 0, 250,
+	0, 0, 246, 247, 252, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 187, 0, 0,
+	288, 0, 131, 0, 0, 145, 98, 97, 106, 0,
+	0, 0, 89, 0, 137, 127, 157, 0, 128, 136,
 	110, 149, 132, 156, 188, 164, 147, 163, 78, 146,
 	155, 87, 139, 80, 153, 144, 116, 102, 103, 79,
 	0, 135, 92, 96, 91, 124, 150, 151, 90, 171,
 	83, 162, 82, 84, 161, 123, 148, 154, 117, 114,
 	81, 152, 115, 113, 105, 94, 99, 129, 112, 130,
-	100, 120, 119, 121, 0, 321, 0, 143, 159, 172,
-	336, 394, 165, 166, 167, 168, 0, 0, 0, 122,
+	100, 120, 119, 121, 0, 0, 0, 143, 159, 172,
+	0, 0, 165, 166, 167, 168, 0, 0, 0, 122,
 	85, 101, 140, 104, 111, 134, 170, 126, 138, 88,
-	158, 141, 332, 335, 330, 331, 369, 370, 403, 404,
-	405, 385, 327, 0, 333, 334, 0, 389, 372, 77,
-	0, 108, 169, 133, 95, 160, 398, 388, 0, 360,
-	400, 338, 352, 408, 353, 354, 381, 324, 368, 125,
-	350, 0, 341, 319, 347, 320, 339, 362, 93, 365,
-	337, 390, 371, 107, 406, 109, 376, 0, 142, 118,
-	0, 0, 364, 392, 366, 386, 359, 382, 329, 375,
-	401, 351, 379, 402, 0, 0, 0, 75, 0, 0,
-	0, 0, 0, 0, 0, 0, 86, 0, 378, 397,
-	349, 380, 318, 377, 0, 322, 325, 407, 395, 344,
-	345, 0, 0, 0, 0, 0, 0, 0, 363, 367,
-	383, 357, 0, 0, 0, 0, 0, 0, 0, 0,
-	342, 0, 374, 0, 0, 0, 326, 323, 0, 361,
-	0, 0, 0, 328, 0, 343, 384, 0, 317, 387,
-	393, 358, 187, 396, 356, 355, 399, 131, 0, 0,
-	145, 98, 97, 106, 391, 340, 348, 89, 346, 137,
-	127, 157, 373, 128, 136, 110, 149, 132, 156, 188,
-	164, 147, 163, 78, 146, 583, 87, 139, 80, 153,
-	144, 116, 102, 103, 79, 0, 135, 92, 96, 91,
-	124, 150, 151, 90, 171, 83, 162, 82, 315, 161,
-	123, 148, 154, 117, 114, 81, 152, 115, 113, 105,
-	94, 99, 129, 112, 130, 100, 120, 119, 121, 0,
-	321, 0, 143, 159, 172, 336, 394, 165, 166, 167,
-	168, 0, 0, 0, 316, 314, 101, 140, 104, 111,
-	134, 170, 126, 138, 88, 158, 141, 332, 335, 330,
-	331, 369, 370, 403, 404, 405, 385, 327, 0, 333,
-	334, 0, 389, 372, 77, 0, 108, 169, 133, 95,
-	160, 398, 388, 0, 360, 400, 338, 352, 408, 353,
-	354, 381, 324, 368, 125, 350, 0, 341, 319, 347,
-	320, 339, 362, 93, 365, 337, 390, 371, 107, 406,
-	109, 376, 0, 142, 118, 0, 0, 364, 392, 366,
-	386, 359, 382, 329, 375, 401, 351, 379, 402, 0,
-	0, 0, 75, 0, 0, 0, 0, 0, 0, 0,
-	0, 86, 0, 378, 397, 349, 380, 318, 377, 0,
-	322, 325, 407, 395, 344, 345, 0, 0, 0, 0,
-	0, 0, 0, 363, 367, 383, 357, 0, 0, 0,
-	0, 0, 0, 0, 0, 342, 0, 374, 0, 0,
-	0, 326, 323, 0, 361, 0, 0, 0, 328, 0,
-	343, 384, 0, 317, 387, 393, 358, 187, 396, 356,
-	355, 399, 131, 0, 0, 145, 98, 97, 106, 391,
-	340, 348, 89, 346, 137, 127, 157, 373, 128, 136,
-	110, 149, 132, 156, 188, 164, 147, 163, 78, 146,
-	306, 87, 139, 80, 153, 144, 116, 102, 103, 79,
-	0, 135, 92, 96, 91, 124, 150, 151, 90, 171,
-	83, 162, 82, 315, 161, 123, 148, 154, 117, 114,
-	81, 152, 115, 113, 105, 94, 99, 129, 112, 130,
-	100, 120, 119, 121, 0, 321, 0, 143, 159, 172,
-	336, 394, 165, 166, 167, 168, 0, 0, 0, 316,
-	314, 309, 308, 104, 111, 134, 170, 126, 138, 88,
-	158, 141, 332, 335, 330, 331, 369, 370, 403, 404,
-	405, 385, 327, 0, 333, 334, 0, 389, 372, 77,
-	0, 108, 169, 133, 95, 160, 125, 0, 0, 741,
+	158, 141, 280, 289, 286, 287, 284, 285, 283, 282,
+	281, 291, 272, 273, 274, 275, 277, 0, 276, 77,
+	0, 108, 169, 133, 95, 160, 125, 0, 0, 0,
 	0, 240, 0, 0, 0, 93, 0, 237, 0, 0,
 	107, 279, 109, 0, 0, 142, 118, 0, 0, 0,
 	0, 270, 271, 0, 0, 0, 0, 0, 0, 0,
-	0, 50, 0, 0, 238, 258, 257, 260, 261, 262,
+	0, 50, 0, 454, 238, 258, 257, 260, 261, 262,
 	263, 0, 0, 86, 259, 264, 265, 266, 0, 0,
 	235, 251, 0, 278, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 248, 249, 231, 0, 0, 0, 290,
+	0, 0, 0, 248, 249, 0, 0, 0, 0, 290,
 	0, 250, 0, 0, 246, 247, 252, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 187,
 	0, 0, 288, 0, 131, 0, 0, 145, 98, 97,
@@ -1180,11 +1221,11 @@ var yyAct = [...]int{
 	0, 0, 0, 240, 0, 0, 0, 93, 0, 237,
 	0, 0, 107, 279, 109, 0, 0, 142, 118, 0,
 	0, 0, 0, 270, 271, 0, 0, 0, 0, 0,
-	0, 0, 0, 50, 0, 454, 238, 258, 257, 260,
+	0, 0, 0, 50, 0, 0, 238, 258, 257, 260,
 	261, 262, 263, 0, 0, 86, 259, 264, 265, 266,
 	0, 0, 235, 251, 0, 278, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 248, 249, 0, 0, 0,
+	0, 0, 0, 0, 0, 248, 249, 231, 0, 0,
 	0, 290, 0, 250, 0, 0, 246, 247, 252, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 187, 0, 0, 288, 0, 131, 0, 0, 145,
@@ -1203,11 +1244,11 @@ var yyAct = [...]int{
 	125, 0, 0, 0, 0, 240, 0, 0, 0, 93,
 	0, 237, 0, 0, 107, 279, 109, 0, 0, 142,
 	118, 0, 0, 0, 0, 270, 271, 0, 0, 0,
-	0, 0, 0, 0, 0, 50, 0, 0, 238, 258,
+	0, 0, 0, 804, 0, 50, 0, 0, 238, 258,
 	257, 260, 261, 262, 263, 0, 0, 86, 259, 264,
 	265, 266, 0, 0, 235, 251, 0, 278, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 248, 249, 231,
+	0, 0, 0, 0, 0, 0, 0, 248, 249, 0,
 	0, 0, 0, 290, 0, 250, 0, 0, 246, 247,
 	252, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 187, 0, 0, 288, 0, 131, 0,
@@ -1222,31 +1263,31 @@ var yyAct = [...]int{
 	167, 168, 0, 0, 0, 122, 85, 101, 140, 104,
 	111, 134, 170, 126, 138, 88, 158, 141, 280, 289,
 	286, 287, 284, 285, 283, 282, 281, 291, 272, 273,
-	274, 275, 277, 0, 276, 77, 0, 108, 169, 133,
-	95, 160, 125, 0, 0, 0, 0, 240, 0, 0,
-	0, 93, 0, 237, 0, 0, 107, 279, 109, 0,
-	0, 142, 118, 0, 0, 0, 0, 270, 271, 0,
-	0, 0, 0, 0, 0, 804, 0, 50, 0, 0,
-	238, 258, 257, 260, 261, 262, 263, 0, 0, 86,
-	259, 264, 265, 266, 0, 0, 235, 251, 0, 278,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 248,
-	249, 0, 0, 0, 0, 290, 0, 250, 0, 0,
-	246, 247, 252, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 187, 0, 0, 288, 0,
-	131, 0, 0, 145, 98, 97, 106, 0, 0, 0,
-	89, 0, 137, 127, 157, 0, 128, 136, 110, 149,
-	132, 156, 188, 164, 147, 163, 78, 146, 155, 87,
-	139, 80, 153, 144, 116, 102, 103, 79, 0, 135,
-	92, 96, 91, 124, 150, 151, 90, 171, 83, 162,
-	82, 84, 161, 123, 148, 154, 117, 114, 81, 152,
-	115, 113, 105, 94, 99, 129, 112, 130, 100, 120,
-	119, 121, 0, 0, 0, 143, 159, 172, 0, 0,
-	165, 166, 167, 168, 0, 0, 0, 122, 85, 101,
-	140, 104, 111, 134, 170, 126, 138, 88, 158, 141,
-	280, 289, 286, 287, 284, 285, 283, 282, 281, 291,
-	272, 273, 274, 275, 277, 23, 276, 77, 0, 108,
-	169, 133, 95, 160, 0, 0, 0, 125, 0, 0,
+	274, 275, 277, 23, 276, 77, 0, 108, 169, 133,
+	95, 160, 0, 0, 0, 125, 0, 0, 0, 0,
+	240, 0, 0, 0, 93, 0, 237, 0, 0, 107,
+	279, 109, 0, 0, 142, 118, 0, 0, 0, 0,
+	270, 271, 0, 0, 0, 0, 0, 0, 0, 0,
+	50, 0, 0, 238, 258, 257, 260, 261, 262, 263,
+	0, 0, 86, 259, 264, 265, 266, 0, 0, 235,
+	251, 0, 278, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 248, 249, 0, 0, 0, 0, 290, 0,
+	250, 0, 0, 246, 247, 252, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 187, 0,
+	0, 288, 0, 131, 0, 0, 145, 98, 97, 106,
+	0, 0, 0, 89, 0, 137, 127, 157, 0, 128,
+	136, 110, 149, 132, 156, 188, 164, 147, 163, 78,
+	146, 155, 87, 139, 80, 153, 144, 116, 102, 103,
+	79, 0, 135, 92, 96, 91, 124, 150, 151, 90,
+	171, 83, 162, 82, 84, 161, 123, 148, 154, 117,
+	114, 81, 152, 115, 113, 105, 94, 99, 129, 112,
+	130, 100, 120, 119, 121, 0, 0, 0, 143, 159,
+	172, 0, 0, 165, 166, 167, 168, 0, 0, 0,
+	122, 85, 101, 140, 104, 111, 134, 170, 126, 138,
+	88, 158, 141, 280, 289, 286, 287, 284, 285, 283,
+	282, 281, 291, 272, 273, 274, 275, 277, 0, 276,
+	77, 0, 108, 169, 133, 95, 160, 125, 0, 0,
 	0, 0, 240, 0, 0, 0, 93, 0, 237, 0,
 	0, 107, 279, 109, 0, 0, 142, 118, 0, 0,
 	0, 0, 270, 271, 0, 0, 0, 0, 0, 0,
@@ -1269,83 +1310,83 @@ var yyAct = [...]int{
 	0, 0, 122, 85, 101, 140, 104, 111, 134, 170,
 	126, 138, 88, 158, 141, 280, 289, 286, 287, 284,
 	285, 283, 282, 281, 291, 272, 273, 274, 275, 277,
-	0, 276, 77, 0, 108, 169, 133, 95, 160, 125,
-	0, 0, 0, 0, 240, 0, 0, 0, 93, 0,
-	237, 0, 0, 107, 279, 109, 0, 0, 142, 118,
-	0, 0, 0, 0, 270, 271, 0, 0, 0, 0,
-	0, 0, 0, 0, 50, 0, 0, 238, 258, 257,
-	260, 261, 262, 263, 0, 0, 86, 259, 264, 265,
-	266, 0, 0, 235, 251, 0, 278, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 248, 249, 0, 0,
-	0, 0, 290, 0, 250, 0, 0, 246, 247, 252,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 187, 0, 0, 288, 0, 131, 0, 0,
-	145, 98, 97, 106, 0, 0, 0, 89, 0, 137,
-	127, 157, 0, 128, 136, 110, 149, 132, 156, 188,
-	164, 147, 163, 78, 146, 155, 87, 139, 80, 153,
-	144, 116, 102, 103, 79, 0, 135, 92, 96, 91,
-	124, 150, 151, 90, 171, 83, 162, 82, 84, 161,
-	123, 148, 154, 117, 114, 81, 152, 115, 113, 105,
-	94, 99, 129, 112, 130, 100, 120, 119, 121, 0,
-	0, 0, 143, 159, 172, 0, 0, 165, 166, 167,
-	168, 0, 0, 0, 122, 85, 101, 140, 104, 111,
-	134, 170, 126, 138, 88, 158, 141, 280, 289, 286,
-	287, 284, 285, 283, 282, 281, 291, 272, 273, 274,
-	275, 277, 125, 276, 77, 0, 108, 169, 133, 95,
-	160, 93, 0, 0, 0, 0, 107, 279, 109, 0,
-	0, 142, 118, 0, 0, 0, 0, 270, 271, 0,
-	0, 0, 0, 0, 0, 0, 0, 50, 0, 0,
-	238, 258, 257, 260, 261, 262, 263, 0, 0, 86,
-	259, 264, 265, 266, 0, 0, 0, 251, 0, 278,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 248,
-	249, 0, 0, 0, 0, 290, 0, 250, 0, 0,
-	246, 247, 252, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 187, 0, 0, 288, 0,
-	131, 0, 0, 145, 98, 97, 106, 0, 0, 0,
-	89, 0, 137, 127, 157, 1289, 128, 136, 110, 149,
-	132, 156, 188, 164, 147, 163, 78, 146, 155, 87,
-	139, 80, 153, 144, 116, 102, 103, 79, 0, 135,
-	92, 96, 91, 124, 150, 151, 90, 171, 83, 162,
-	82, 84, 161, 123, 148, 154, 117, 114, 81, 152,
-	115, 113, 105, 94, 99, 129, 112, 130, 100, 120,
-	119, 121, 0, 0, 0, 143, 159, 172, 0, 0,
-	165, 166, 167, 168, 0, 0, 0, 122, 85, 101,
-	140, 104, 111, 134, 170, 126, 138, 88, 158, 141,
-	280, 289, 286, 287, 284, 285, 283, 282, 281, 291,
-	272, 273, 274, 275, 277, 125, 276, 77, 0, 108,
-	169, 133, 95, 160, 93, 0, 0, 0, 0, 107,
-	279, 109, 0, 0, 142, 118, 0, 0, 0, 0,
-	270, 271, 0, 0, 0, 0, 0, 0, 0, 0,
-	50, 0, 0, 238, 258, 257, 260, 261, 262, 263,
-	0, 0, 86, 259, 264, 265, 266, 0, 0, 0,
-	251, 0, 278, 0, 0, 0, 0, 0, 0, 0,
+	125, 276, 77, 0, 108, 169, 133, 95, 160, 93,
+	0, 0, 0, 0, 107, 279, 109, 0, 0, 142,
+	118, 0, 0, 0, 0, 270, 271, 0, 0, 0,
+	0, 0, 0, 0, 0, 50, 0, 0, 238, 258,
+	257, 260, 261, 262, 263, 0, 0, 86, 259, 264,
+	265, 266, 0, 0, 0, 251, 0, 278, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 248, 249, 0, 0, 0, 0, 290, 0,
-	250, 0, 0, 246, 247, 252, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 187, 0,
-	0, 288, 0, 131, 0, 0, 145, 98, 97, 106,
-	0, 0, 0, 89, 0, 137, 127, 157, 0, 128,
-	136, 110, 149, 132, 156, 188, 164, 147, 163, 78,
-	146, 155, 87, 139, 80, 153, 144, 116, 102, 103,
-	79, 0, 135, 92, 96, 91, 124, 150, 151, 90,
-	171, 83, 162, 82, 84, 161, 123, 148, 154, 117,
-	114, 81, 152, 115, 113, 105, 94, 99, 129, 112,
-	130, 100, 120, 119, 121, 0, 0, 0, 143, 159,
-	172, 0, 0, 165, 166, 167, 168, 0, 0, 0,
-	122, 85, 101, 140, 104, 111, 134, 170, 126, 138,
-	88, 158, 141, 280, 289, 286, 287, 284, 285, 283,
-	282, 281, 291, 272, 273, 274, 275, 277, 125, 276,
-	77, 0, 108, 169, 133, 95, 160, 93, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 248, 249, 0,
+	0, 0, 0, 290, 0, 250, 0, 0, 246, 247,
+	252, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 187, 0, 0, 288, 0, 131, 0,
+	0, 145, 98, 97, 106, 0, 0, 0, 89, 0,
+	137, 127, 157, 1290, 128, 136, 110, 149, 132, 156,
+	188, 164, 147, 163, 78, 146, 155, 87, 139, 80,
+	153, 144, 116, 102, 103, 79, 0, 135, 92, 96,
+	91, 124, 150, 151, 90, 171, 83, 162, 82, 84,
+	161, 123, 148, 154, 117, 114, 81, 152, 115, 113,
+	105, 94, 99, 129, 112, 130, 100, 120, 119, 121,
+	0, 0, 0, 143, 159, 172, 0, 0, 165, 166,
+	167, 168, 0, 0, 0, 122, 85, 101, 140, 104,
+	111, 134, 170, 126, 138, 88, 158, 141, 280, 289,
+	286, 287, 284, 285, 283, 282, 281, 291, 272, 273,
+	274, 275, 277, 125, 276, 77, 0, 108, 169, 133,
+	95, 160, 93, 0, 0, 0, 0, 107, 279, 109,
+	0, 0, 142, 118, 0, 0, 0, 0, 270, 271,
+	0, 0, 0, 0, 0, 0, 0, 0, 50, 0,
+	0, 238, 258, 257, 260, 261, 262, 263, 0, 0,
+	86, 259, 264, 265, 266, 0, 0, 0, 251, 0,
+	278, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	248, 249, 0, 0, 0, 0, 290, 0, 250, 0,
+	0, 246, 247, 252, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 187, 0, 0, 288,
+	0, 131, 0, 0, 145, 98, 97, 106, 0, 0,
+	0, 89, 0, 137, 127, 157, 0, 128, 136, 110,
+	149, 132, 156, 188, 164, 147, 163, 78, 146, 155,
+	87, 139, 80, 153, 144, 116, 102, 103, 79, 0,
+	135, 92, 96, 91, 124, 150, 151, 90, 171, 83,
+	162, 82, 84, 161, 123, 148, 154, 117, 114, 81,
+	152, 115, 113, 105, 94, 99, 129, 112, 130, 100,
+	120, 119, 121, 0, 0, 0, 143, 159, 172, 0,
+	0, 165, 166, 167, 168, 0, 0, 0, 122, 85,
+	101, 140, 104, 111, 134, 170, 126, 138, 88, 158,
+	141, 280, 289, 286, 287, 284, 285, 283, 282, 281,
+	291, 272, 273, 274, 275, 277, 125, 276, 77, 0,
+	108, 169, 133, 95, 160, 93, 0, 0, 0, 0,
+	107, 0, 109, 0, 0, 142, 118, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 75, 0, 0, 0, 0, 0,
+	0, 0, 0, 86, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 488,
+	487, 497, 498, 490, 491, 492, 493, 494, 495, 496,
+	489, 0, 0, 499, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 187,
+	0, 0, 0, 0, 131, 0, 0, 145, 98, 97,
+	106, 0, 0, 0, 89, 0, 137, 127, 157, 0,
+	128, 136, 110, 149, 132, 156, 188, 164, 147, 163,
+	78, 146, 155, 87, 139, 80, 153, 144, 116, 102,
+	103, 79, 0, 135, 92, 96, 91, 124, 150, 151,
+	90, 171, 83, 162, 82, 84, 161, 123, 148, 154,
+	117, 114, 81, 152, 115, 113, 105, 94, 99, 129,
+	112, 130, 100, 120, 119, 121, 0, 0, 0, 143,
+	159, 172, 0, 0, 165, 166, 167, 168, 0, 0,
+	0, 122, 85, 101, 140, 104, 111, 134, 170, 126,
+	138, 88, 158, 141, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 77, 0, 108, 169, 133, 95, 160, 125, 0,
+	0, 0, 476, 0, 0, 0, 0, 93, 0, 0,
 	0, 0, 107, 0, 109, 0, 0, 142, 118, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 75, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 75, 0, 478, 0,
 	0, 0, 0, 0, 0, 86, 0, 0, 0, 0,
+	473, 472, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 474, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 488, 487, 497, 498, 490, 491, 492, 493, 494,
-	495, 496, 489, 0, 0, 499, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 187, 0, 0, 0, 0, 131, 0, 0, 145,
 	98, 97, 106, 0, 0, 0, 89, 0, 137, 127,
@@ -1359,111 +1400,20 @@ var yyAct = [...]int{
 	0, 0, 0, 122, 85, 101, 140, 104, 111, 134,
 	170, 126, 138, 88, 158, 141, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 77, 0, 108, 169, 133, 95, 160,
-	125, 0, 0, 0, 476, 0, 0, 0, 0, 93,
-	0, 0, 0, 0, 107, 0, 109, 0, 0, 142,
-	118, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 75, 0,
-	478, 0, 0, 0, 0, 0, 0, 86, 0, 0,
-	0, 0, 473, 472, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 474,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 187, 0, 0, 0, 0, 131, 0,
-	0, 145, 98, 97, 106, 0, 0, 0, 89, 0,
-	137, 127, 157, 0, 128, 136, 110, 149, 132, 156,
-	188, 164, 147, 163, 78, 146, 155, 87, 139, 80,
-	153, 144, 116, 102, 103, 79, 0, 135, 92, 96,
-	91, 124, 150, 151, 90, 171, 83, 162, 82, 84,
-	161, 123, 148, 154, 117, 114, 81, 152, 115, 113,
-	105, 94, 99, 129, 112, 130, 100, 120, 119, 121,
-	0, 0, 0, 143, 159, 172, 0, 0, 165, 166,
-	167, 168, 0, 0, 0, 122, 85, 101, 140, 104,
-	111, 134, 170, 126, 138, 88, 158, 141, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 125, 0, 77, 0, 108, 169, 133,
-	95, 160, 93, 0, 0, 0, 0, 107, 0, 109,
-	0, 0, 142, 118, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 75, 0, 0, 0, 0, 0, 0, 0, 0,
-	86, 0, 0, 0, 0, 68, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 71, 72, 0, 67, 0, 0, 0,
-	73, 131, 0, 0, 145, 98, 97, 106, 0, 0,
-	0, 89, 0, 137, 127, 157, 0, 128, 136, 110,
-	149, 132, 156, 69, 164, 147, 163, 78, 146, 155,
-	87, 139, 80, 153, 144, 116, 102, 103, 79, 0,
-	135, 92, 96, 91, 124, 150, 151, 90, 171, 83,
-	162, 82, 84, 161, 123, 148, 154, 117, 114, 81,
-	152, 115, 113, 105, 94, 99, 129, 112, 130, 100,
-	120, 119, 121, 0, 0, 0, 143, 159, 172, 0,
-	0, 165, 166, 167, 168, 0, 0, 0, 122, 85,
-	101, 140, 104, 111, 134, 170, 126, 138, 88, 158,
-	141, 0, 70, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 77, 0,
-	108, 169, 133, 95, 160, 125, 0, 0, 0, 572,
-	0, 0, 0, 0, 93, 0, 0, 0, 0, 107,
-	0, 109, 0, 0, 142, 118, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 185, 0, 574, 0, 0, 0, 0,
-	0, 0, 86, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 187, 0,
-	0, 0, 0, 131, 0, 0, 145, 98, 97, 106,
-	0, 0, 0, 89, 0, 137, 127, 157, 0, 128,
-	136, 110, 149, 132, 156, 188, 164, 147, 163, 78,
-	146, 155, 87, 139, 80, 153, 144, 116, 102, 103,
-	79, 0, 135, 92, 96, 91, 124, 150, 151, 90,
-	171, 83, 162, 82, 84, 161, 123, 148, 154, 117,
-	114, 81, 152, 115, 113, 105, 94, 99, 129, 112,
-	130, 100, 120, 119, 121, 0, 0, 0, 143, 159,
-	172, 0, 0, 165, 166, 167, 168, 0, 0, 0,
-	122, 85, 101, 140, 104, 111, 134, 170, 126, 138,
-	88, 158, 141, 0, 0, 0, 23, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 125, 0,
-	77, 0, 108, 169, 133, 95, 160, 93, 0, 0,
-	0, 0, 107, 0, 109, 0, 0, 142, 118, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 50, 0, 0, 75, 0, 0, 0,
-	0, 0, 0, 0, 0, 86, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 187, 0, 0, 0, 0, 131, 0, 0, 145,
-	98, 97, 106, 0, 0, 0, 89, 0, 137, 127,
-	157, 0, 128, 136, 110, 149, 132, 156, 188, 164,
-	147, 163, 78, 146, 155, 87, 139, 80, 153, 144,
-	116, 102, 103, 79, 0, 135, 92, 96, 91, 124,
-	150, 151, 90, 171, 83, 162, 82, 84, 161, 123,
-	148, 154, 117, 114, 81, 152, 115, 113, 105, 94,
-	99, 129, 112, 130, 100, 120, 119, 121, 0, 0,
-	0, 143, 159, 172, 0, 0, 165, 166, 167, 168,
-	0, 0, 0, 122, 85, 101, 140, 104, 111, 134,
-	170, 126, 138, 88, 158, 141, 0, 0, 0, 23,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 125, 0, 77, 0, 108, 169, 133, 95, 160,
-	93, 0, 0, 0, 0, 107, 0, 109, 0, 0,
-	142, 118, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 50, 0, 0, 185,
-	0, 0, 0, 0, 0, 0, 0, 0, 86, 0,
+	0, 125, 0, 77, 0, 108, 169, 133, 95, 160,
+	93, 0, 0, 0, 0, 107, 0, 109, 0, 0,
+	142, 118, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 75,
+	0, 0, 0, 0, 0, 0, 0, 0, 86, 0,
+	0, 0, 0, 68, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 187, 0, 0, 0, 0, 131,
+	0, 71, 72, 0, 67, 0, 0, 0, 73, 131,
 	0, 0, 145, 98, 97, 106, 0, 0, 0, 89,
 	0, 137, 127, 157, 0, 128, 136, 110, 149, 132,
-	156, 188, 164, 147, 163, 78, 146, 155, 87, 139,
+	156, 69, 164, 147, 163, 78, 146, 155, 87, 139,
 	80, 153, 144, 116, 102, 103, 79, 0, 135, 92,
 	96, 91, 124, 150, 151, 90, 171, 83, 162, 82,
 	84, 161, 123, 148, 154, 117, 114, 81, 152, 115,
@@ -1471,57 +1421,57 @@ var yyAct = [...]int{
 	121, 0, 0, 0, 143, 159, 172, 0, 0, 165,
 	166, 167, 168, 0, 0, 0, 122, 85, 101, 140,
 	104, 111, 134, 170, 126, 138, 88, 158, 141, 0,
+	70, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 77, 0, 108, 169,
+	133, 95, 160, 125, 0, 0, 0, 572, 0, 0,
+	0, 0, 93, 0, 0, 0, 0, 107, 0, 109,
+	0, 0, 142, 118, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 125, 0, 77, 0, 108, 169,
-	133, 95, 160, 93, 0, 0, 0, 0, 107, 0,
-	109, 0, 0, 142, 118, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 75, 0, 0, 692, 0, 0, 693, 0,
-	0, 86, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 185, 0, 574, 0, 0, 0, 0, 0, 0,
+	86, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 187, 0, 0,
-	0, 0, 131, 0, 0, 145, 98, 97, 106, 0,
-	0, 0, 89, 0, 137, 127, 157, 0, 128, 136,
-	110, 149, 132, 156, 188, 164, 147, 163, 78, 146,
-	155, 87, 139, 80, 153, 144, 116, 102, 103, 79,
-	0, 135, 92, 96, 91, 124, 150, 151, 90, 171,
-	83, 162, 82, 84, 161, 123, 148, 154, 117, 114,
-	81, 152, 115, 113, 105, 94, 99, 129, 112, 130,
-	100, 120, 119, 121, 0, 0, 0, 143, 159, 172,
-	0, 0, 165, 166, 167, 168, 0, 0, 0, 122,
-	85, 101, 140, 104, 111, 134, 170, 126, 138, 88,
-	158, 141, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 125, 0, 77,
-	0, 108, 169, 133, 95, 160, 93, 0, 592, 0,
-	0, 107, 0, 109, 0, 0, 142, 118, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 75, 0, 591, 0, 0,
-	0, 0, 0, 0, 86, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 187, 0, 0, 0,
+	0, 131, 0, 0, 145, 98, 97, 106, 0, 0,
+	0, 89, 0, 137, 127, 157, 0, 128, 136, 110,
+	149, 132, 156, 188, 164, 147, 163, 78, 146, 155,
+	87, 139, 80, 153, 144, 116, 102, 103, 79, 0,
+	135, 92, 96, 91, 124, 150, 151, 90, 171, 83,
+	162, 82, 84, 161, 123, 148, 154, 117, 114, 81,
+	152, 115, 113, 105, 94, 99, 129, 112, 130, 100,
+	120, 119, 121, 0, 0, 0, 143, 159, 172, 0,
+	0, 165, 166, 167, 168, 0, 0, 0, 122, 85,
+	101, 140, 104, 111, 134, 170, 126, 138, 88, 158,
+	141, 0, 0, 0, 23, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 125, 0, 77, 0,
+	108, 169, 133, 95, 160, 93, 0, 0, 0, 0,
+	107, 0, 109, 0, 0, 142, 118, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 50, 0, 0, 75, 0, 0, 0, 0, 0,
+	0, 0, 0, 86, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	187, 0, 0, 0, 0, 131, 0, 0, 145, 98,
-	97, 106, 0, 0, 0, 89, 0, 137, 127, 157,
-	0, 128, 136, 110, 149, 132, 156, 188, 164, 147,
-	163, 78, 146, 155, 87, 139, 80, 153, 144, 116,
-	102, 103, 79, 0, 135, 92, 96, 91, 124, 150,
-	151, 90, 171, 83, 162, 82, 84, 161, 123, 148,
-	154, 117, 114, 81, 152, 115, 113, 105, 94, 99,
-	129, 112, 130, 100, 120, 119, 121, 0, 0, 0,
-	143, 159, 172, 0, 0, 165, 166, 167, 168, 0,
-	0, 0, 122, 85, 101, 140, 104, 111, 134, 170,
-	126, 138, 88, 158, 141, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 77, 0, 108, 169, 133, 95, 160, 125,
-	0, 0, 0, 572, 0, 0, 0, 0, 93, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 187,
+	0, 0, 0, 0, 131, 0, 0, 145, 98, 97,
+	106, 0, 0, 0, 89, 0, 137, 127, 157, 0,
+	128, 136, 110, 149, 132, 156, 188, 164, 147, 163,
+	78, 146, 155, 87, 139, 80, 153, 144, 116, 102,
+	103, 79, 0, 135, 92, 96, 91, 124, 150, 151,
+	90, 171, 83, 162, 82, 84, 161, 123, 148, 154,
+	117, 114, 81, 152, 115, 113, 105, 94, 99, 129,
+	112, 130, 100, 120, 119, 121, 0, 0, 0, 143,
+	159, 172, 0, 0, 165, 166, 167, 168, 0, 0,
+	0, 122, 85, 101, 140, 104, 111, 134, 170, 126,
+	138, 88, 158, 141, 0, 0, 0, 23, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 125,
+	0, 77, 0, 108, 169, 133, 95, 160, 93, 0,
 	0, 0, 0, 107, 0, 109, 0, 0, 142, 118,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 185, 0, 574,
+	0, 0, 0, 0, 50, 0, 0, 185, 0, 0,
 	0, 0, 0, 0, 0, 0, 86, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@@ -1530,7 +1480,7 @@ var yyAct = [...]int{
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 187, 0, 0, 0, 0, 131, 0, 0,
 	145, 98, 97, 106, 0, 0, 0, 89, 0, 137,
-	127, 157, 0, 570, 136, 110, 149, 132, 156, 188,
+	127, 157, 0, 128, 136, 110, 149, 132, 156, 188,
 	164, 147, 163, 78, 146, 155, 87, 139, 80, 153,
 	144, 116, 102, 103, 79, 0, 135, 92, 96, 91,
 	124, 150, 151, 90, 171, 83, 162, 82, 84, 161,
@@ -1543,8 +1493,8 @@ var yyAct = [...]int{
 	0, 0, 125, 0, 77, 0, 108, 169, 133, 95,
 	160, 93, 0, 0, 0, 0, 107, 0, 109, 0,
 	0, 142, 118, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 50, 0, 0,
-	185, 0, 0, 0, 0, 0, 0, 0, 0, 86,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	75, 0, 0, 692, 0, 0, 693, 0, 0, 86,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@@ -1563,10 +1513,10 @@ var yyAct = [...]int{
 	140, 104, 111, 134, 170, 126, 138, 88, 158, 141,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 125, 0, 77, 0, 108,
-	169, 133, 95, 160, 93, 0, 0, 0, 0, 107,
+	169, 133, 95, 160, 93, 0, 592, 0, 0, 107,
 	0, 109, 0, 0, 142, 118, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 185, 0, 574, 0, 0, 0, 0,
+	0, 0, 0, 75, 0, 591, 0, 0, 0, 0,
 	0, 0, 86, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@@ -1584,34 +1534,191 @@ var yyAct = [...]int{
 	172, 0, 0, 165, 166, 167, 168, 0, 0, 0,
 	122, 85, 101, 140, 104, 111, 134, 170, 126, 138,
 	88, 158, 141, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 125, 0,
-	77, 0, 108, 169, 133, 95, 160, 93, 0, 0,
-	0, 0, 107, 0, 109, 0, 0, 142, 118, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 75, 0, 478, 0,
-	0, 0, 0, 0, 0, 86, 0, 0, 0, 0,
+	77, 0, 108, 169, 133, 95, 160, 125, 0, 0,
+	0, 572, 0, 0, 0, 0, 93, 0, 0, 0,
+	0, 107, 0, 109, 0, 0, 142, 118, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 185, 0, 574, 0, 0,
+	0, 0, 0, 0, 86, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 187, 0, 0, 0, 0, 131, 0, 0, 145,
-	98, 97, 106, 0, 0, 0, 89, 0, 137, 127,
-	157, 0, 128, 136, 110, 149, 132, 156, 188, 164,
-	147, 163, 78, 146, 155, 87, 139, 80, 153, 144,
-	116, 102, 103, 79, 0, 135, 92, 96, 91, 124,
-	150, 151, 90, 171, 83, 162, 82, 84, 161, 123,
-	148, 154, 117, 114, 81, 152, 115, 113, 105, 94,
-	99, 129, 112, 130, 100, 120, 119, 121, 0, 0,
-	0, 143, 159, 172, 0, 0, 165, 166, 167, 168,
-	0, 0, 0, 122, 85, 101, 140, 104, 111, 134,
-	170, 126, 138, 88, 158, 141, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 125, 77, 0, 108, 169, 133, 95, 160,
-	550, 93, 0, 0, 0, 0, 107, 0, 109, 0,
+	187, 0, 0, 0, 0, 131, 0, 0, 145, 98,
+	97, 106, 0, 0, 0, 89, 0, 137, 127, 157,
+	0, 570, 136, 110, 149, 132, 156, 188, 164, 147,
+	163, 78, 146, 155, 87, 139, 80, 153, 144, 116,
+	102, 103, 79, 0, 135, 92, 96, 91, 124, 150,
+	151, 90, 171, 83, 162, 82, 84, 161, 123, 148,
+	154, 117, 114, 81, 152, 115, 113, 105, 94, 99,
+	129, 112, 130, 100, 120, 119, 121, 0, 0, 0,
+	143, 159, 172, 0, 0, 165, 166, 167, 168, 0,
+	0, 0, 122, 85, 101, 140, 104, 111, 134, 170,
+	126, 138, 88, 158, 141, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	125, 0, 77, 0, 108, 169, 133, 95, 160, 93,
+	0, 0, 0, 0, 107, 0, 109, 0, 0, 142,
+	118, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 50, 0, 0, 185, 0,
+	0, 0, 0, 0, 0, 0, 0, 86, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 187, 0, 0, 0, 0, 131, 0,
+	0, 145, 98, 97, 106, 0, 0, 0, 89, 0,
+	137, 127, 157, 0, 128, 136, 110, 149, 132, 156,
+	188, 164, 147, 163, 78, 146, 155, 87, 139, 80,
+	153, 144, 116, 102, 103, 79, 0, 135, 92, 96,
+	91, 124, 150, 151, 90, 171, 83, 162, 82, 84,
+	161, 123, 148, 154, 117, 114, 81, 152, 115, 113,
+	105, 94, 99, 129, 112, 130, 100, 120, 119, 121,
+	0, 0, 0, 143, 159, 172, 0, 0, 165, 166,
+	167, 168, 0, 0, 0, 122, 85, 101, 140, 104,
+	111, 134, 170, 126, 138, 88, 158, 141, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 125, 0, 77, 0, 108, 169, 133,
+	95, 160, 93, 0, 0, 0, 0, 107, 0, 109,
+	0, 0, 142, 118, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 185, 0, 574, 0, 0, 0, 0, 0, 0,
+	86, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 187, 0, 0, 0,
+	0, 131, 0, 0, 145, 98, 97, 106, 0, 0,
+	0, 89, 0, 137, 127, 157, 0, 128, 136, 110,
+	149, 132, 156, 188, 164, 147, 163, 78, 146, 155,
+	87, 139, 80, 153, 144, 116, 102, 103, 79, 0,
+	135, 92, 96, 91, 124, 150, 151, 90, 171, 83,
+	162, 82, 84, 161, 123, 148, 154, 117, 114, 81,
+	152, 115, 113, 105, 94, 99, 129, 112, 130, 100,
+	120, 119, 121, 0, 0, 0, 143, 159, 172, 0,
+	0, 165, 166, 167, 168, 0, 0, 0, 122, 85,
+	101, 140, 104, 111, 134, 170, 126, 138, 88, 158,
+	141, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 125, 0, 77, 0,
+	108, 169, 133, 95, 160, 93, 0, 0, 0, 0,
+	107, 0, 109, 0, 0, 142, 118, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 75, 0, 478, 0, 0, 0,
+	0, 0, 0, 86, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 187,
+	0, 0, 0, 0, 131, 0, 0, 145, 98, 97,
+	106, 0, 0, 0, 89, 0, 137, 127, 157, 0,
+	128, 136, 110, 149, 132, 156, 188, 164, 147, 163,
+	78, 146, 155, 87, 139, 80, 153, 144, 116, 102,
+	103, 79, 0, 135, 92, 96, 91, 124, 150, 151,
+	90, 171, 83, 162, 82, 84, 161, 123, 148, 154,
+	117, 114, 81, 152, 115, 113, 105, 94, 99, 129,
+	112, 130, 100, 120, 119, 121, 0, 0, 0, 143,
+	159, 172, 0, 0, 165, 166, 167, 168, 0, 0,
+	0, 122, 85, 101, 140, 104, 111, 134, 170, 126,
+	138, 88, 158, 141, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	125, 77, 0, 108, 169, 133, 95, 160, 550, 93,
+	0, 0, 0, 0, 107, 0, 109, 0, 0, 142,
+	118, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 185, 0,
+	0, 0, 0, 0, 0, 0, 0, 86, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 187, 0, 0, 0, 0, 131, 0,
+	0, 145, 98, 97, 106, 0, 0, 0, 89, 0,
+	137, 127, 157, 0, 128, 136, 110, 149, 132, 156,
+	188, 164, 147, 163, 78, 146, 155, 87, 139, 80,
+	153, 144, 116, 102, 103, 79, 0, 135, 92, 96,
+	91, 124, 150, 151, 90, 171, 83, 162, 82, 84,
+	161, 123, 148, 154, 117, 114, 81, 152, 115, 113,
+	105, 94, 99, 129, 112, 130, 100, 120, 119, 121,
+	0, 0, 0, 143, 159, 172, 0, 0, 165, 166,
+	167, 168, 0, 0, 0, 122, 85, 101, 140, 104,
+	111, 134, 170, 126, 138, 88, 158, 141, 0, 0,
+	0, 0, 0, 0, 0, 0, 301, 0, 0, 0,
+	0, 0, 0, 125, 0, 77, 0, 108, 169, 133,
+	95, 160, 93, 0, 0, 0, 0, 107, 0, 109,
+	0, 0, 142, 118, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 185, 0, 0, 0, 0, 0, 0, 0, 0,
+	86, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 187, 0, 0, 0,
+	0, 131, 0, 0, 145, 98, 97, 106, 0, 0,
+	0, 89, 0, 137, 127, 157, 0, 128, 136, 110,
+	149, 132, 156, 188, 164, 147, 163, 78, 146, 155,
+	87, 139, 80, 153, 144, 116, 102, 103, 79, 0,
+	135, 92, 96, 91, 124, 150, 151, 90, 171, 83,
+	162, 82, 84, 161, 123, 148, 154, 117, 114, 81,
+	152, 115, 113, 105, 94, 99, 129, 112, 130, 100,
+	120, 119, 121, 0, 0, 0, 143, 159, 172, 0,
+	0, 165, 166, 167, 168, 0, 0, 0, 122, 85,
+	101, 140, 104, 111, 134, 170, 126, 138, 88, 158,
+	141, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 125, 0, 77, 0,
+	108, 169, 133, 95, 160, 93, 0, 0, 0, 0,
+	107, 0, 109, 0, 0, 142, 118, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 185, 0, 0, 0, 0, 0,
+	0, 0, 0, 86, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 182, 0, 187,
+	0, 0, 0, 0, 131, 0, 0, 145, 98, 97,
+	106, 0, 0, 0, 89, 0, 137, 127, 157, 0,
+	128, 136, 110, 149, 132, 156, 188, 164, 147, 163,
+	78, 146, 155, 87, 139, 80, 153, 144, 116, 102,
+	103, 79, 0, 135, 92, 96, 91, 124, 150, 151,
+	90, 171, 83, 162, 82, 84, 161, 123, 148, 154,
+	117, 114, 81, 152, 115, 113, 105, 94, 99, 129,
+	112, 130, 100, 120, 119, 121, 0, 0, 0, 143,
+	159, 172, 0, 0, 165, 166, 167, 168, 0, 0,
+	0, 122, 85, 101, 140, 104, 111, 134, 170, 126,
+	138, 88, 158, 141, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 125,
+	0, 77, 0, 108, 169, 133, 95, 160, 93, 0,
+	0, 0, 0, 107, 0, 109, 0, 0, 142, 118,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 75, 0, 0,
+	0, 0, 0, 0, 0, 0, 86, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 187, 0, 0, 0, 0, 131, 0, 0,
+	145, 98, 97, 106, 0, 0, 0, 89, 0, 137,
+	127, 157, 0, 128, 136, 110, 149, 132, 156, 188,
+	164, 147, 163, 78, 146, 155, 87, 139, 80, 153,
+	144, 116, 102, 103, 79, 0, 135, 92, 96, 91,
+	124, 150, 151, 90, 171, 83, 162, 82, 84, 161,
+	123, 148, 154, 117, 114, 81, 152, 115, 113, 105,
+	94, 99, 129, 112, 130, 100, 120, 119, 121, 0,
+	0, 0, 143, 159, 172, 0, 0, 165, 166, 167,
+	168, 0, 0, 0, 122, 85, 101, 140, 104, 111,
+	134, 170, 126, 138, 88, 158, 141, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 125, 0, 77, 0, 108, 169, 133, 95,
+	160, 93, 0, 0, 0, 0, 107, 0, 109, 0,
 	0, 142, 118, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	185, 0, 0, 0, 0, 0, 0, 0, 0, 86,
+	238, 0, 0, 0, 0, 0, 0, 0, 0, 86,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@@ -1628,7 +1735,7 @@ var yyAct = [...]int{
 	119, 121, 0, 0, 0, 143, 159, 172, 0, 0,
 	165, 166, 167, 168, 0, 0, 0, 122, 85, 101,
 	140, 104, 111, 134, 170, 126, 138, 88, 158, 141,
-	0, 0, 0, 0, 0, 0, 0, 0, 301, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 125, 0, 77, 0, 108,
 	169, 133, 95, 160, 93, 0, 0, 0, 0, 107,
 	0, 109, 0, 0, 142, 118, 0, 0, 0, 0,
@@ -1651,108 +1758,19 @@ var yyAct = [...]int{
 	172, 0, 0, 165, 166, 167, 168, 0, 0, 0,
 	122, 85, 101, 140, 104, 111, 134, 170, 126, 138,
 	88, 158, 141, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 125, 0,
-	77, 0, 108, 169, 133, 95, 160, 93, 0, 0,
-	0, 0, 107, 0, 109, 0, 0, 142, 118, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 185, 0, 0, 0,
-	0, 0, 0, 0, 0, 86, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 182,
-	0, 187, 0, 0, 0, 0, 131, 0, 0, 145,
-	98, 97, 106, 0, 0, 0, 89, 0, 137, 127,
-	157, 0, 128, 136, 110, 149, 132, 156, 188, 164,
-	147, 163, 78, 146, 155, 87, 139, 80, 153, 144,
-	116, 102, 103, 79, 0, 135, 92, 96, 91, 124,
-	150, 151, 90, 171, 83, 162, 82, 84, 161, 123,
-	148, 154, 117, 114, 81, 152, 115, 113, 105, 94,
-	99, 129, 112, 130, 100, 120, 119, 121, 0, 0,
-	0, 143, 159, 172, 0, 0, 165, 166, 167, 168,
-	0, 0, 0, 122, 85, 101, 140, 104, 111, 134,
-	170, 126, 138, 88, 158, 141, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 125, 0, 77, 0, 108, 169, 133, 95, 160,
-	93, 0, 0, 0, 0, 107, 0, 109, 0, 0,
-	142, 118, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 75,
-	0, 0, 0, 0, 0, 0, 0, 0, 86, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 187, 0, 0, 0, 0, 131,
-	0, 0, 145, 98, 97, 106, 0, 0, 0, 89,
-	0, 137, 127, 157, 0, 128, 136, 110, 149, 132,
-	156, 188, 164, 147, 163, 78, 146, 155, 87, 139,
-	80, 153, 144, 116, 102, 103, 79, 0, 135, 92,
-	96, 91, 124, 150, 151, 90, 171, 83, 162, 82,
-	84, 161, 123, 148, 154, 117, 114, 81, 152, 115,
-	113, 105, 94, 99, 129, 112, 130, 100, 120, 119,
-	121, 0, 0, 0, 143, 159, 172, 0, 0, 165,
-	166, 167, 168, 0, 0, 0, 122, 85, 101, 140,
-	104, 111, 134, 170, 126, 138, 88, 158, 141, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 125, 0, 77, 0, 108, 169,
-	133, 95, 160, 93, 0, 0, 0, 0, 107, 0,
-	109, 0, 0, 142, 118, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 238, 0, 0, 0, 0, 0, 0, 0,
-	0, 86, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 187, 0, 0,
-	0, 0, 131, 0, 0, 145, 98, 97, 106, 0,
-	0, 0, 89, 0, 137, 127, 157, 0, 128, 136,
-	110, 149, 132, 156, 188, 164, 147, 163, 78, 146,
-	155, 87, 139, 80, 153, 144, 116, 102, 103, 79,
-	0, 135, 92, 96, 91, 124, 150, 151, 90, 171,
-	83, 162, 82, 84, 161, 123, 148, 154, 117, 114,
-	81, 152, 115, 113, 105, 94, 99, 129, 112, 130,
-	100, 120, 119, 121, 0, 0, 0, 143, 159, 172,
-	0, 0, 165, 166, 167, 168, 0, 0, 0, 122,
-	85, 101, 140, 104, 111, 134, 170, 126, 138, 88,
-	158, 141, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 125, 0, 77,
-	0, 108, 169, 133, 95, 160, 93, 0, 0, 0,
-	0, 107, 0, 109, 0, 0, 142, 118, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 185, 0, 0, 0, 0,
-	0, 0, 0, 0, 86, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	187, 0, 0, 0, 0, 131, 0, 0, 145, 98,
-	97, 106, 0, 0, 0, 89, 0, 137, 127, 157,
-	0, 128, 136, 110, 149, 132, 156, 188, 164, 147,
-	163, 78, 146, 155, 87, 139, 80, 153, 144, 116,
-	102, 103, 79, 0, 135, 92, 96, 91, 124, 150,
-	151, 90, 171, 83, 162, 82, 84, 161, 123, 148,
-	154, 117, 114, 81, 152, 115, 113, 105, 94, 99,
-	129, 112, 130, 100, 120, 119, 121, 0, 0, 0,
-	143, 159, 172, 0, 0, 165, 166, 167, 168, 0,
-	0, 0, 122, 85, 101, 140, 104, 111, 134, 170,
-	126, 138, 88, 158, 141, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 77, 0, 108, 169, 133, 95, 160,
+	77, 0, 108, 169, 133, 95, 160,
 }
 var yyPact = [...]int{
 
-	1723, -1000, -186, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
+	1614, -1000, -184, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
 	-1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
-	-1000, 802, 836, -1000, -1000, -1000, -1000, -1000, -1000, 618,
-	7335, 41, 62, -18, 10030, 61, 1367, 10699, -1000, -6,
-	-1000, -1000, -1000, -1000, -1000, -1000, -1000, 593, -1000, -1000,
-	-1000, -1000, -1000, 776, 799, 647, 803, 702, -1000, 5512,
-	40, 8914, 9807, 4816, -1000, 484, 59, 10699, -158, 10253,
-	34, 34, 34, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
+	-1000, 794, 818, -1000, -1000, -1000, -1000, -1000, -1000, 628,
+	7483, 55, 71, -3, 10178, 70, 1228, 10847, -1000, -14,
+	-1000, -1000, -1000, -1000, -1000, -1000, -1000, 590, -1000, -1000,
+	-1000, -1000, -1000, 787, 790, 646, 777, 695, -1000, 5660,
+	49, 9062, 9955, 4964, -1000, 478, 67, 10847, -154, 10401,
+	29, 29, 29, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
 	-1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
 	-1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
 	-1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
@@ -1762,21 +1780,21 @@ var yyPact = [...]int{
 	-1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
 	-1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
 	-1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
-	-1000, -1000, -1000, 51, 10699, -1000, 10699, 33, 481, 33,
-	33, 33, 10699, -1000, 101, -1000, -1000, -1000, -1000, 10699,
-	478, 733, 22, 2856, 2856, 2856, 2856, 1, 2856, -83,
-	655, -1000, -1000, -1000, -1000, 2856, -1000, -1000, -1000, -1000,
-	-1000, -1000, -1000, -1000, -1000, -1000, 364, 739, 6211, 6211,
-	802, -1000, 593, -1000, -1000, -1000, 729, -1000, -1000, 243,
-	822, -1000, 7112, 99, -1000, 6211, 1819, 429, -1000, -1000,
-	429, -1000, -1000, 81, -1000, -1000, 6657, 6657, 6657, 6657,
-	6657, 6657, 6657, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
-	-1000, -1000, -1000, -1000, -1000, -1000, -1000, 429, -1000, 5979,
-	429, 429, 429, 429, 429, 429, 429, 429, 6211, 429,
-	429, 429, 429, 429, 429, 429, 429, 429, 429, 429,
-	429, 429, 9584, 587, 874, -1000, -1000, -1000, 767, 8013,
-	8691, 10699, 531, -1000, 589, 4571, -121, -1000, -1000, -1000,
-	173, 8459, -1000, -1000, -1000, 731, -1000, -1000, -1000, -1000,
+	-1000, -1000, -1000, 69, 10847, -1000, 10847, 27, 468, 27,
+	27, 27, 10847, -1000, 106, -1000, -1000, -1000, -1000, 10847,
+	442, 745, 28, 3004, 3004, 3004, 3004, -9, 3004, -87,
+	650, -1000, -1000, -1000, -1000, 3004, -1000, -1000, -1000, -1000,
+	-1000, -1000, -1000, -1000, -1000, -1000, 436, 748, 6359, 6359,
+	794, -1000, 590, -1000, -1000, -1000, 731, -1000, -1000, 265,
+	803, -1000, 7260, 104, -1000, 6359, 1707, 600, -1000, -1000,
+	600, -1000, -1000, 81, -1000, -1000, 6805, 6805, 6805, 6805,
+	6805, 6805, 6805, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
+	-1000, -1000, -1000, -1000, -1000, -1000, -1000, 600, -1000, 6127,
+	600, 600, 600, 600, 600, 600, 600, 600, 6359, 600,
+	600, 600, 600, 600, 600, 600, 600, 600, 600, 600,
+	600, 600, 9732, 521, 729, -1000, -1000, -1000, 772, 8161,
+	8839, 10847, 522, -1000, 586, 4719, -126, -1000, -1000, -1000,
+	182, 8607, -1000, -1000, -1000, 735, -1000, -1000, -1000, -1000,
 	-1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
 	-1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
 	-1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
@@ -1786,117 +1804,117 @@ var yyPact = [...]int{
 	-1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
 	-1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
 	-1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 477,
-	-1000, 1856, 472, 2856, 50, 606, 470, 223, 453, 10699,
-	10699, 2856, 44, 10699, 757, 653, 10699, 452, 440, -1000,
-	4326, -1000, 2856, 2856, 2856, 2856, 2856, 2856, 2856, 2856,
-	-1000, -1000, -1000, -1000, -1000, -1000, 2856, 2856, -1000, -67,
-	-1000, 10699, -1000, -1000, -1000, -1000, 831, 130, 525, 95,
-	591, -1000, 278, 776, 364, 702, 8236, 665, -1000, -1000,
-	10699, -1000, 6211, 6211, 286, -1000, 9360, -1000, -1000, 3346,
-	147, 6657, 284, 237, 6657, 6657, 6657, 6657, 6657, 6657,
-	6657, 6657, 6657, 6657, 6657, 6657, 6657, 6657, 6657, 327,
-	-1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 438, -1000,
-	593, 725, 725, 113, 113, 113, 113, 113, 113, 6880,
-	5048, 364, 437, 180, 5979, 5512, 5512, 6211, 6211, 10476,
-	10476, 5512, 769, 203, 180, 10476, -1000, 364, -1000, -1000,
-	-1000, -1000, -1000, -1000, -1000, 5512, 5512, 5512, 5512, 14,
-	10699, -1000, 10476, 8914, 8914, 8914, 8914, 8914, -1000, 679,
-	678, -1000, 688, 685, 694, 10699, -1000, 433, 8013, 125,
-	429, -1000, 9137, -1000, -1000, 14, 568, 8914, 10699, -1000,
-	-1000, 4081, 589, -121, 581, -1000, -98, -97, 5744, 110,
-	-1000, -1000, -1000, -1000, 2611, 188, 273, -66, -1000, -1000,
-	-1000, 595, -1000, 595, 595, 595, 595, -33, -33, -33,
-	-33, -1000, -1000, -1000, -1000, -1000, 617, 614, -1000, 595,
-	595, 595, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
-	-1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 613, 613,
-	613, 597, 597, 622, -1000, 10699, -174, 430, 2856, 756,
-	2856, -1000, 70, -1000, 10699, -1000, -1000, 10699, 2856, -1000,
+	-1000, 1909, 437, 3004, 62, 609, 424, 231, 416, 10847,
+	10847, 3004, 59, 10847, 770, 649, 10847, 410, 408, -1000,
+	4474, -1000, 3004, 3004, 3004, 3004, 3004, 3004, 3004, 3004,
+	-1000, -1000, -1000, -1000, -1000, -1000, 3004, 3004, -1000, -82,
+	-1000, 10847, -1000, -1000, -1000, -1000, 811, 136, 328, 102,
+	587, -1000, 400, 787, 436, 695, 8384, 664, -1000, -1000,
+	10847, -1000, 6359, 6359, 409, -1000, 9508, -1000, -1000, 3494,
+	155, 6805, 292, 251, 6805, 6805, 6805, 6805, 6805, 6805,
+	6805, 6805, 6805, 6805, 6805, 6805, 6805, 6805, 6805, 325,
+	-1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 405, -1000,
+	590, 608, 608, 122, 122, 122, 122, 122, 122, 7028,
+	5196, 436, 472, 256, 6127, 5660, 5660, 6359, 6359, 10624,
+	10624, 5660, 774, 188, 256, 10624, -1000, 436, -1000, -1000,
+	-1000, -1000, -1000, -1000, -1000, 5660, 5660, 5660, 5660, 8,
+	10847, -1000, 10624, 9062, 9062, 9062, 9062, 9062, -1000, 687,
+	676, -1000, 686, 661, 707, 10847, -1000, 465, 8161, 121,
+	600, -1000, 9285, -1000, -1000, 8, 577, 9062, 10847, -1000,
+	-1000, 4229, 586, -126, 576, -1000, -104, -99, 5892, 116,
+	-1000, -1000, -1000, -1000, 2759, 176, 227, -75, -1000, -1000,
+	-1000, 602, -1000, 602, 602, 602, 602, -45, -45, -45,
+	-45, -1000, -1000, -1000, -1000, -1000, 627, 625, -1000, 602,
+	602, 602, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
+	-1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 619, 619,
+	619, 603, 603, 630, -1000, 10847, -173, 401, 3004, 769,
+	3004, -1000, 193, -1000, 10847, -1000, -1000, 10847, 3004, -1000,
 	-1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
-	-1000, -1000, -1000, -1000, 208, -1000, -1000, -1000, -1000, 695,
-	6211, 6211, 3836, 6211, -1000, -1000, -1000, 739, -1000, 769,
-	810, -1000, 722, 720, 5512, -1000, -1000, 147, 156, -1000,
-	-1000, 328, -1000, -1000, -1000, -1000, 94, 429, -1000, 1907,
-	-1000, -1000, -1000, -1000, 284, 6657, 6657, 6657, 1409, 1907,
-	1872, 405, 357, 113, 612, 612, 112, 112, 112, 112,
-	112, 910, 910, -1000, -1000, -1000, 364, -1000, -1000, -1000,
-	364, 5512, 582, -1000, -1000, 6211, -1000, 364, 426, 426,
-	289, 334, 626, -1000, 91, 619, 426, 5512, 218, -1000,
-	6211, 364, -1000, 426, 364, 426, 426, 544, 429, -1000,
-	564, -1000, 172, 874, 605, 652, 650, -1000, -1000, -1000,
-	-1000, 675, -1000, 636, -1000, -1000, -1000, -1000, -1000, 58,
-	57, 56, 10253, -1000, 818, 8914, 521, -1000, -1000, 581,
-	-121, -100, -1000, -1000, -1000, 180, -1000, 428, 530, 2366,
-	-1000, -1000, -1000, -1000, -1000, -1000, 601, 749, 145, 137,
-	427, -1000, -1000, 736, -1000, 238, -69, -1000, -1000, 292,
-	-33, -33, -1000, -1000, 110, 730, 110, 110, 110, 343,
-	343, -1000, -1000, -1000, -1000, 280, -1000, -1000, -1000, 277,
-	-1000, 637, 10253, 2856, -1000, 3591, -1000, -1000, -1000, -1000,
-	-1000, -1000, 282, 204, 179, -1000, -1000, -1000, -1000, -1000,
-	-1000, -1000, -1000, -1000, -1000, -1000, 13, -1000, 2856, -1000,
-	209, 10699, 10699, 709, 180, 180, 79, -1000, -1000, 10699,
-	-1000, -1000, -1000, -1000, 610, -1000, -1000, -1000, 3101, 5512,
-	-1000, 1409, 1907, 1606, -1000, 6657, 6657, -1000, -1000, 426,
-	5512, 180, -1000, -1000, -1000, 54, 327, 54, 6657, 6657,
-	3836, 6657, 6657, -168, 532, 187, -1000, 6211, 307, -1000,
-	-1000, -1000, -1000, -1000, 635, 10476, 429, -1000, 7790, 10253,
-	802, 10476, 6211, 6211, -1000, -1000, 6211, 599, -1000, 6211,
-	-1000, -1000, -1000, 429, 429, 429, 389, -1000, 802, 521,
-	-1000, -1000, -1000, -130, -132, -1000, -1000, 2611, -1000, 2611,
-	10253, -1000, 367, 350, -1000, -1000, 625, 28, -1000, -1000,
-	-1000, 423, 110, 110, -1000, 155, -1000, -1000, -1000, 420,
-	-1000, 416, 526, 410, 10699, -1000, -1000, 516, -1000, 165,
-	-1000, -1000, 10253, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
-	-1000, -1000, -1000, -1000, -1000, 10253, 10699, -1000, -1000, -1000,
-	-1000, -1000, 10253, -1000, -1000, 341, 6211, -1000, -1000, -1000,
-	3591, -1000, 818, 8914, -1000, -1000, 364, -1000, 6657, 1907,
-	1907, -1000, -1000, 364, 595, 595, -1000, 595, 597, -1000,
-	595, -15, 595, -16, 364, 364, 1524, 1728, -1000, 422,
-	1553, 429, -165, -1000, 180, 6211, -1000, 732, 490, 498,
-	-1000, -1000, 5280, 364, 391, 77, 389, 776, -1000, 180,
-	180, 180, 10253, 180, 10253, 10253, 10253, 7567, 10253, 776,
-	-1000, -1000, -1000, -1000, 2366, -1000, 387, -1000, 595, -1000,
-	-1000, -60, 828, -1000, -1000, -1000, -1000, -1000, -1000, -1000,
-	-1000, -1000, -1000, -1000, -33, 340, -33, 259, -1000, 257,
-	2856, 3591, 2611, -1000, 594, -1000, -1000, -1000, -1000, 741,
-	-1000, 180, 815, 513, -1000, 1907, -1000, -1000, 86, -1000,
-	-1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 6657, 6657,
-	-1000, 6657, 6657, 6657, 364, 322, 180, 748, -1000, 429,
-	-1000, -1000, 560, 10253, 10253, -1000, -1000, 377, -1000, 371,
-	371, 371, 125, -1000, -1000, 107, 10253, -1000, 133, -1000,
-	-147, 110, -1000, 110, 417, 406, -1000, -1000, -1000, 10253,
-	429, 805, 779, -1000, -1000, 1509, 1509, 1509, 1509, 16,
-	-1000, -1000, 826, -1000, 429, -1000, 593, 73, -1000, 10253,
-	-1000, -1000, -1000, -1000, -1000, 107, -1000, 347, 160, 317,
-	-1000, 239, 747, -1000, 738, -1000, -1000, -1000, -1000, -1000,
-	363, 12, -1000, 6211, 6211, -1000, -1000, -1000, -1000, 364,
-	49, -178, 10476, 498, 364, 10253, -1000, -1000, -1000, 256,
-	-1000, -1000, -1000, 316, -1000, -1000, 606, 361, -1000, 10253,
-	180, 494, -1000, 706, -171, -181, 435, -1000, -1000, -1000,
-	-1000, -174, -1000, 12, 715, -1000, 705, -1000, -1000, -1000,
-	9, -175, 4, -179, 429, -182, 6434, -1000, 1509, 364,
-	-1000, -1000,
+	-1000, -1000, -1000, -1000, 208, -1000, -1000, -1000, -1000, 710,
+	6359, 6359, 3984, 6359, -1000, -1000, -1000, 748, -1000, 774,
+	792, -1000, 722, 721, 5660, -1000, -1000, 155, 169, -1000,
+	-1000, 291, -1000, -1000, -1000, -1000, 101, 600, -1000, 1767,
+	-1000, -1000, -1000, -1000, 292, 6805, 6805, 6805, 63, 1767,
+	1872, 1225, 311, 122, 288, 288, 134, 134, 134, 134,
+	134, 448, 448, -1000, -1000, -1000, 436, -1000, -1000, -1000,
+	436, 5660, 579, -1000, -1000, 6359, -1000, 436, 463, 463,
+	278, 375, 566, -1000, 100, 557, 463, 5660, 219, -1000,
+	6359, 436, -1000, 463, 436, 463, 463, 532, 600, -1000,
+	574, -1000, 181, 729, 612, 647, 668, -1000, -1000, -1000,
+	-1000, 673, -1000, 662, -1000, -1000, -1000, -1000, -1000, 66,
+	65, 64, 10401, -1000, 800, 9062, 570, -1000, -1000, 576,
+	-126, -137, -1000, -1000, -1000, 256, -1000, 399, 572, 2514,
+	-1000, -1000, -1000, -1000, -1000, -1000, 607, 760, 149, 145,
+	385, -1000, -1000, 751, -1000, 254, -78, -1000, -1000, -1000,
+	337, -45, -45, -1000, -1000, 116, 726, 116, 116, 116,
+	363, 363, -1000, -1000, -1000, -1000, 332, -1000, -1000, -1000,
+	313, -1000, 638, 10401, 3004, -1000, 3739, -1000, -1000, -1000,
+	-1000, -1000, -1000, 374, 189, 232, -1000, -1000, -1000, -1000,
+	-1000, -1000, -1000, -1000, -1000, -1000, -1000, 4, -1000, 3004,
+	-1000, 240, 10847, 10847, 705, 256, 256, 98, -1000, -1000,
+	10847, -1000, -1000, -1000, -1000, 541, -1000, -1000, -1000, 3249,
+	5660, -1000, 63, 1767, 1786, -1000, 6805, 6805, -1000, -1000,
+	463, 5660, 256, -1000, -1000, -1000, 46, 325, 46, 6805,
+	6805, 3984, 6805, 6805, -168, 569, 184, -1000, 6359, 388,
+	-1000, -1000, -1000, -1000, -1000, 637, 10624, 600, -1000, 7938,
+	10401, 794, 10624, 6359, 6359, -1000, -1000, 6359, 605, -1000,
+	6359, -1000, -1000, -1000, 600, 600, 600, 435, -1000, 794,
+	570, -1000, -1000, -1000, -132, -134, -1000, -1000, 2759, -1000,
+	2759, 10401, -1000, 372, 370, -1000, -1000, 632, 53, -1000,
+	-1000, -1000, 484, 116, 116, -1000, 187, -1000, -1000, -1000,
+	458, -1000, 454, 554, 452, 10847, -1000, -1000, 538, -1000,
+	179, -1000, -1000, 10401, -1000, -1000, -1000, -1000, -1000, -1000,
+	-1000, -1000, -1000, -1000, -1000, -1000, 10401, 10847, -1000, -1000,
+	-1000, -1000, -1000, 10401, -1000, -1000, 362, 6359, -1000, -1000,
+	-1000, 3739, -1000, 800, 9062, -1000, -1000, 436, -1000, 6805,
+	1767, 1767, -1000, -1000, 436, 602, 602, -1000, 602, 603,
+	-1000, 602, -23, 602, -29, 436, 436, 1582, 1741, -1000,
+	1504, 1202, 600, -165, -1000, 256, 6359, -1000, 763, 509,
+	513, -1000, -1000, 5428, 436, 441, 94, 435, 787, -1000,
+	256, 256, 256, 10401, 256, 10401, 10401, 10401, 7715, 10401,
+	787, -1000, -1000, -1000, -1000, 2514, -1000, 431, -1000, 602,
+	-1000, -1000, -71, 810, -1000, -1000, -1000, -1000, -1000, -1000,
+	-1000, -1000, -1000, -1000, -1000, -45, 361, -45, 294, -1000,
+	279, 3004, 3739, 2759, -1000, 601, -1000, -1000, -1000, -1000,
+	765, -1000, 256, 797, 526, -1000, 1767, -1000, -1000, 73,
+	-1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, -1000, 6805,
+	6805, -1000, 6805, 6805, 6805, 436, 343, 256, 755, -1000,
+	600, -1000, -1000, 564, 10401, 10401, -1000, -1000, 429, -1000,
+	395, 395, 395, 121, -1000, -1000, 114, 10401, -1000, 141,
+	-1000, -140, 116, -1000, 116, 473, 459, -1000, -1000, -1000,
+	10401, 600, 793, 789, -1000, -1000, 1054, 1054, 1054, 1054,
+	5, -1000, -1000, 806, -1000, 600, -1000, 590, 84, -1000,
+	10401, -1000, -1000, -1000, -1000, -1000, 114, -1000, 367, 148,
+	293, -1000, 258, 754, -1000, 753, -1000, -1000, -1000, -1000,
+	-1000, 389, 3, -1000, 6359, 6359, -1000, -1000, -1000, -1000,
+	436, 60, -176, 10624, 513, 436, 10401, -1000, -1000, -1000,
+	275, -1000, -1000, -1000, 289, -1000, -1000, 609, 377, -1000,
+	10401, 256, 510, -1000, 704, -171, -179, 507, -1000, -1000,
+	-1000, -1000, -173, -1000, 3, 720, -1000, 703, -1000, -1000,
+	-1000, 0, -174, -2, -177, 600, -180, 6582, -1000, 1054,
+	436, -1000, -1000,
 }
 var yyPgo = [...]int{
 
-	0, 1069, 13, 493, 1068, 1067, 1063, 1059, 1058, 1056,
-	1055, 1053, 1052, 1047, 1045, 1044, 1042, 1040, 1039, 1037,
-	1036, 1035, 1033, 1032, 104, 1031, 1027, 1026, 57, 1025,
-	63, 1024, 1022, 33, 225, 45, 30, 150, 1018, 31,
-	54, 84, 1017, 35, 1016, 1014, 70, 1013, 51, 1000,
-	999, 1293, 998, 995, 19, 41, 993, 991, 990, 989,
-	60, 312, 988, 987, 985, 982, 981, 979, 39, 5,
-	7, 12, 11, 978, 127, 15, 976, 55, 975, 974,
-	973, 971, 25, 970, 46, 965, 21, 40, 964, 16,
-	53, 28, 23, 2, 65, 47, 962, 27, 50, 38,
-	961, 958, 367, 948, 944, 942, 940, 936, 934, 140,
-	309, 932, 931, 930, 928, 32, 167, 466, 73, 58,
-	927, 926, 925, 1239, 59, 52, 22, 924, 36, 1247,
-	42, 912, 910, 29, 909, 908, 897, 895, 894, 893,
-	892, 264, 890, 889, 887, 17, 20, 882, 881, 49,
-	26, 878, 877, 876, 34, 37, 874, 44, 873, 872,
-	867, 866, 24, 10, 865, 9, 862, 8, 860, 856,
-	4, 853, 18, 852, 3, 851, 6, 43, 850, 847,
-	0, 323, 844, 843, 105,
+	0, 1014, 10, 510, 1013, 1012, 1011, 1010, 1008, 1007,
+	1006, 1005, 1003, 1001, 999, 998, 995, 994, 993, 990,
+	989, 986, 985, 984, 109, 983, 980, 979, 57, 978,
+	64, 976, 975, 30, 212, 36, 34, 148, 973, 21,
+	59, 54, 972, 31, 968, 967, 67, 964, 53, 962,
+	961, 1404, 959, 951, 15, 41, 947, 945, 944, 941,
+	60, 1017, 939, 936, 935, 934, 932, 930, 49, 7,
+	13, 14, 16, 929, 759, 6, 927, 40, 926, 925,
+	924, 923, 32, 922, 47, 921, 24, 42, 920, 18,
+	51, 28, 27, 5, 65, 55, 919, 23, 50, 38,
+	917, 915, 356, 914, 913, 912, 911, 910, 905, 131,
+	322, 904, 903, 901, 900, 43, 167, 451, 529, 63,
+	897, 895, 893, 1482, 61, 52, 25, 883, 33, 257,
+	35, 882, 879, 29, 878, 877, 876, 875, 874, 872,
+	871, 180, 870, 869, 868, 26, 12, 867, 866, 45,
+	19, 861, 860, 857, 39, 46, 856, 44, 854, 853,
+	849, 845, 22, 17, 844, 9, 843, 8, 842, 841,
+	2, 840, 20, 837, 3, 834, 4, 37, 833, 831,
+	0, 324, 828, 824, 92,
 }
 var yyR1 = [...]int{
 
@@ -1913,53 +1931,53 @@ var yyR1 = [...]int{
 	138, 138, 138, 138, 139, 139, 139, 139, 139, 139,
 	139, 139, 139, 139, 139, 139, 139, 139, 139, 140,
 	140, 140, 140, 140, 140, 140, 140, 154, 154, 141,
-	141, 149, 149, 150, 150, 150, 147, 147, 148, 148,
-	151, 151, 151, 142, 142, 142, 142, 142, 142, 142,
-	144, 144, 152, 152, 145, 145, 145, 146, 146, 153,
-	153, 153, 153, 153, 143, 143, 156, 156, 168, 168,
-	167, 167, 167, 158, 158, 164, 164, 164, 164, 164,
-	157, 157, 166, 166, 165, 161, 161, 161, 162, 162,
-	162, 163, 163, 163, 12, 12, 12, 12, 12, 12,
-	12, 12, 12, 177, 177, 177, 177, 177, 177, 177,
-	177, 177, 177, 177, 171, 169, 169, 170, 170, 13,
-	14, 14, 14, 14, 14, 15, 15, 17, 18, 18,
+	141, 149, 149, 150, 150, 150, 147, 147, 147, 148,
+	148, 151, 151, 151, 142, 142, 142, 142, 142, 142,
+	142, 144, 144, 152, 152, 145, 145, 145, 146, 146,
+	153, 153, 153, 153, 153, 143, 143, 156, 156, 168,
+	168, 167, 167, 167, 158, 158, 164, 164, 164, 164,
+	164, 164, 157, 157, 166, 166, 165, 161, 161, 161,
+	162, 162, 162, 163, 163, 163, 12, 12, 12, 12,
+	12, 12, 12, 12, 12, 177, 177, 177, 177, 177,
+	177, 177, 177, 177, 177, 177, 171, 169, 169, 170,
+	170, 13, 14, 14, 14, 14, 14, 15, 15, 17,
 	18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
 	18, 18, 18, 18, 18, 18, 18, 18, 18, 18,
-	18, 107, 107, 104, 104, 105, 105, 106, 106, 106,
-	108, 108, 108, 132, 132, 132, 19, 19, 21, 21,
-	22, 23, 20, 20, 20, 20, 20, 183, 24, 25,
-	25, 26, 26, 26, 30, 30, 30, 28, 28, 29,
-	29, 35, 35, 34, 34, 36, 36, 36, 36, 120,
-	120, 120, 119, 119, 38, 38, 39, 39, 40, 40,
-	41, 41, 41, 53, 53, 89, 89, 91, 91, 42,
-	42, 42, 42, 43, 43, 44, 44, 45, 45, 127,
-	127, 126, 126, 126, 125, 125, 47, 47, 47, 49,
-	48, 48, 48, 48, 50, 50, 52, 52, 51, 51,
-	54, 54, 54, 54, 55, 55, 37, 37, 37, 37,
-	37, 37, 37, 103, 103, 57, 57, 56, 56, 56,
-	56, 56, 56, 56, 56, 56, 56, 67, 67, 67,
-	67, 67, 67, 58, 58, 58, 58, 58, 58, 58,
-	33, 33, 68, 68, 68, 74, 69, 69, 61, 61,
+	18, 18, 18, 107, 107, 104, 104, 105, 105, 106,
+	106, 106, 108, 108, 108, 132, 132, 132, 19, 19,
+	21, 21, 22, 23, 20, 20, 20, 20, 20, 183,
+	24, 25, 25, 26, 26, 26, 30, 30, 30, 28,
+	28, 29, 29, 35, 35, 34, 34, 36, 36, 36,
+	36, 120, 120, 120, 119, 119, 38, 38, 39, 39,
+	40, 40, 41, 41, 41, 53, 53, 89, 89, 91,
+	91, 42, 42, 42, 42, 43, 43, 44, 44, 45,
+	45, 127, 127, 126, 126, 126, 125, 125, 47, 47,
+	47, 49, 48, 48, 48, 48, 50, 50, 52, 52,
+	51, 51, 54, 54, 54, 54, 55, 55, 37, 37,
+	37, 37, 37, 37, 37, 103, 103, 57, 57, 56,
+	56, 56, 56, 56, 56, 56, 56, 56, 56, 67,
+	67, 67, 67, 67, 67, 58, 58, 58, 58, 58,
+	58, 58, 33, 33, 68, 68, 68, 74, 69, 69,
+	61, 61, 61, 61, 61, 61, 61, 61, 61, 61,
 	61, 61, 61, 61, 61, 61, 61, 61, 61, 61,
 	61, 61, 61, 61, 61, 61, 61, 61, 61, 61,
-	61, 61, 61, 61, 61, 61, 61, 61, 61, 65,
-	65, 65, 63, 63, 63, 63, 63, 63, 63, 63,
-	63, 63, 63, 63, 63, 63, 63, 64, 64, 64,
-	64, 64, 64, 64, 64, 184, 184, 66, 66, 66,
-	66, 31, 31, 31, 31, 31, 130, 130, 133, 133,
+	61, 65, 65, 65, 63, 63, 63, 63, 63, 63,
+	63, 63, 63, 63, 63, 63, 63, 63, 63, 64,
+	64, 64, 64, 64, 64, 64, 64, 184, 184, 66,
+	66, 66, 66, 31, 31, 31, 31, 31, 130, 130,
 	133, 133, 133, 133, 133, 133, 133, 133, 133, 133,
-	133, 78, 78, 32, 32, 76, 76, 77, 79, 79,
-	75, 75, 75, 60, 60, 60, 60, 60, 60, 60,
-	60, 62, 62, 62, 80, 80, 81, 81, 82, 82,
-	83, 83, 84, 85, 85, 85, 86, 86, 86, 86,
-	87, 87, 87, 59, 59, 59, 59, 59, 59, 88,
-	88, 88, 88, 92, 92, 70, 70, 72, 72, 71,
-	73, 93, 93, 97, 94, 94, 98, 98, 98, 96,
-	96, 96, 122, 122, 122, 101, 101, 109, 109, 110,
-	110, 102, 102, 111, 111, 111, 111, 111, 111, 111,
-	111, 111, 111, 112, 112, 112, 113, 113, 114, 114,
-	114, 121, 121, 117, 117, 118, 118, 123, 123, 124,
-	124, 115, 115, 115, 115, 115, 115, 115, 115, 115,
+	133, 133, 133, 78, 78, 32, 32, 76, 76, 77,
+	79, 79, 75, 75, 75, 60, 60, 60, 60, 60,
+	60, 60, 60, 62, 62, 62, 80, 80, 81, 81,
+	82, 82, 83, 83, 84, 85, 85, 85, 86, 86,
+	86, 86, 87, 87, 87, 59, 59, 59, 59, 59,
+	59, 88, 88, 88, 88, 92, 92, 70, 70, 72,
+	72, 71, 73, 93, 93, 97, 94, 94, 98, 98,
+	98, 96, 96, 96, 122, 122, 122, 101, 101, 109,
+	109, 110, 110, 102, 102, 111, 111, 111, 111, 111,
+	111, 111, 111, 111, 111, 112, 112, 112, 113, 113,
+	114, 114, 114, 121, 121, 117, 117, 118, 118, 123,
+	123, 124, 124, 115, 115, 115, 115, 115, 115, 115,
 	115, 115, 115, 115, 115, 115, 115, 115, 115, 115,
 	115, 115, 115, 115, 115, 115, 115, 115, 115, 115,
 	115, 115, 115, 115, 115, 115, 115, 115, 115, 115,
@@ -1968,7 +1986,7 @@ var yyR1 = [...]int{
 	115, 115, 115, 115, 115, 115, 115, 115, 115, 115,
 	115, 115, 115, 115, 115, 115, 115, 115, 115, 115,
 	115, 115, 115, 115, 115, 115, 115, 115, 115, 115,
-	115, 115, 115, 116, 116, 116, 116, 116, 116, 116,
+	115, 115, 115, 115, 115, 116, 116, 116, 116, 116,
 	116, 116, 116, 116, 116, 116, 116, 116, 116, 116,
 	116, 116, 116, 116, 116, 116, 116, 116, 116, 116,
 	116, 116, 116, 116, 116, 116, 116, 116, 116, 116,
@@ -1978,7 +1996,7 @@ var yyR1 = [...]int{
 	116, 116, 116, 116, 116, 116, 116, 116, 116, 116,
 	116, 116, 116, 116, 116, 116, 116, 116, 116, 116,
 	116, 116, 116, 116, 116, 116, 116, 116, 116, 116,
-	116, 180, 181, 128, 129, 129, 129,
+	116, 116, 116, 180, 181, 128, 129, 129, 129,
 }
 var yyR2 = [...]int{
 
@@ -1995,52 +2013,52 @@ var yyR2 = [...]int{
 	2, 2, 2, 1, 4, 4, 2, 2, 3, 3,
 	3, 3, 1, 1, 1, 1, 1, 6, 6, 1,
 	1, 1, 1, 1, 1, 1, 1, 1, 3, 0,
-	3, 0, 5, 0, 3, 5, 0, 1, 0, 1,
-	0, 1, 2, 0, 2, 2, 2, 2, 2, 2,
-	0, 3, 0, 1, 0, 3, 3, 0, 2, 0,
-	2, 1, 2, 1, 0, 2, 5, 4, 1, 2,
-	2, 3, 2, 0, 1, 2, 3, 3, 2, 2,
-	1, 1, 1, 3, 2, 0, 1, 3, 1, 2,
-	3, 1, 1, 1, 6, 7, 7, 12, 7, 7,
-	7, 4, 5, 1, 1, 1, 1, 1, 1, 1,
-	1, 1, 1, 1, 7, 1, 3, 8, 8, 5,
-	4, 6, 5, 4, 4, 3, 2, 3, 4, 4,
-	4, 4, 4, 4, 4, 4, 3, 3, 3, 3,
-	4, 3, 6, 4, 2, 4, 2, 2, 2, 2,
-	3, 1, 1, 0, 1, 0, 1, 0, 2, 2,
-	0, 2, 2, 0, 1, 1, 2, 1, 1, 2,
-	1, 1, 2, 2, 2, 2, 2, 0, 2, 0,
-	2, 1, 2, 2, 0, 1, 1, 0, 1, 0,
-	1, 0, 1, 1, 3, 1, 2, 3, 5, 0,
-	1, 2, 1, 1, 0, 2, 1, 3, 1, 1,
-	1, 3, 3, 3, 7, 1, 3, 1, 3, 4,
-	4, 4, 3, 2, 4, 0, 1, 0, 2, 0,
-	1, 0, 1, 2, 1, 1, 1, 2, 2, 1,
-	2, 3, 2, 3, 2, 2, 2, 1, 1, 3,
-	0, 5, 5, 5, 0, 2, 1, 3, 3, 2,
-	3, 1, 2, 0, 3, 1, 1, 3, 3, 4,
-	4, 5, 3, 4, 5, 6, 2, 1, 2, 1,
-	2, 1, 2, 1, 1, 1, 1, 1, 1, 1,
-	0, 2, 1, 1, 1, 3, 1, 3, 1, 1,
-	1, 1, 1, 3, 3, 3, 3, 3, 3, 3,
-	3, 3, 3, 3, 3, 3, 3, 3, 2, 2,
-	2, 2, 2, 2, 3, 1, 1, 1, 1, 4,
-	5, 6, 4, 4, 6, 6, 6, 6, 8, 8,
-	6, 8, 8, 9, 7, 5, 4, 2, 2, 2,
-	2, 2, 2, 2, 2, 0, 2, 4, 4, 4,
-	4, 0, 3, 4, 7, 3, 1, 1, 2, 3,
-	3, 1, 2, 2, 1, 2, 1, 2, 2, 1,
-	2, 0, 1, 0, 2, 1, 2, 4, 0, 2,
-	1, 3, 5, 1, 1, 1, 1, 1, 1, 1,
-	1, 1, 2, 2, 0, 3, 0, 2, 0, 3,
-	1, 3, 2, 0, 1, 1, 0, 2, 4, 4,
-	0, 2, 4, 2, 1, 3, 5, 4, 6, 1,
-	3, 3, 5, 0, 5, 1, 3, 1, 2, 3,
-	1, 1, 3, 3, 1, 3, 3, 3, 3, 1,
-	2, 1, 1, 1, 1, 1, 1, 0, 2, 0,
-	3, 0, 1, 1, 1, 1, 1, 1, 1, 1,
-	1, 1, 1, 0, 1, 1, 1, 1, 0, 1,
-	1, 0, 2, 1, 1, 1, 1, 1, 1, 1,
+	3, 0, 5, 0, 3, 5, 0, 1, 1, 0,
+	1, 0, 1, 2, 0, 2, 2, 2, 2, 2,
+	2, 0, 3, 0, 1, 0, 3, 3, 0, 2,
+	0, 2, 1, 2, 1, 0, 2, 5, 4, 1,
+	2, 2, 3, 2, 0, 1, 2, 3, 3, 2,
+	2, 1, 1, 1, 1, 3, 2, 0, 1, 3,
+	1, 2, 3, 1, 1, 1, 6, 7, 7, 12,
+	7, 7, 7, 4, 5, 1, 1, 1, 1, 1,
+	1, 1, 1, 1, 1, 1, 7, 1, 3, 8,
+	8, 5, 4, 6, 5, 4, 4, 3, 2, 3,
+	4, 4, 4, 4, 4, 4, 4, 4, 3, 3,
+	3, 3, 4, 3, 6, 4, 2, 4, 2, 2,
+	2, 2, 3, 1, 1, 0, 1, 0, 1, 0,
+	2, 2, 0, 2, 2, 0, 1, 1, 2, 1,
+	1, 2, 1, 1, 2, 2, 2, 2, 2, 0,
+	2, 0, 2, 1, 2, 2, 0, 1, 1, 0,
+	1, 0, 1, 0, 1, 1, 3, 1, 2, 3,
+	5, 0, 1, 2, 1, 1, 0, 2, 1, 3,
+	1, 1, 1, 3, 3, 3, 7, 1, 3, 1,
+	3, 4, 4, 4, 3, 2, 4, 0, 1, 0,
+	2, 0, 1, 0, 1, 2, 1, 1, 1, 2,
+	2, 1, 2, 3, 2, 3, 2, 2, 2, 1,
+	1, 3, 0, 5, 5, 5, 0, 2, 1, 3,
+	3, 2, 3, 1, 2, 0, 3, 1, 1, 3,
+	3, 4, 4, 5, 3, 4, 5, 6, 2, 1,
+	2, 1, 2, 1, 2, 1, 1, 1, 1, 1,
+	1, 1, 0, 2, 1, 1, 1, 3, 1, 3,
+	1, 1, 1, 1, 1, 3, 3, 3, 3, 3,
+	3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+	2, 2, 2, 2, 2, 2, 3, 1, 1, 1,
+	1, 4, 5, 6, 4, 4, 6, 6, 6, 6,
+	8, 8, 6, 8, 8, 9, 7, 5, 4, 2,
+	2, 2, 2, 2, 2, 2, 2, 0, 2, 4,
+	4, 4, 4, 0, 3, 4, 7, 3, 1, 1,
+	2, 3, 3, 1, 2, 2, 1, 2, 1, 2,
+	2, 1, 2, 0, 1, 0, 2, 1, 2, 4,
+	0, 2, 1, 3, 5, 1, 1, 1, 1, 1,
+	1, 1, 1, 1, 2, 2, 0, 3, 0, 2,
+	0, 3, 1, 3, 2, 0, 1, 1, 0, 2,
+	4, 4, 0, 2, 4, 2, 1, 3, 5, 4,
+	6, 1, 3, 3, 5, 0, 5, 1, 3, 1,
+	2, 3, 1, 1, 3, 3, 1, 3, 3, 3,
+	3, 1, 2, 1, 1, 1, 1, 1, 1, 0,
+	2, 0, 3, 0, 1, 1, 1, 1, 1, 1,
+	1, 1, 1, 1, 1, 0, 1, 1, 1, 1,
+	0, 1, 1, 0, 2, 1, 1, 1, 1, 1,
 	1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
 	1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
 	1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
@@ -2060,7 +2078,7 @@ var yyR2 = [...]int{
 	1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
 	1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
 	1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
-	1, 1, 1, 0, 0, 1, 1,
+	1, 1, 1, 1, 1, 0, 0, 1, 1,
 }
 var yyChk = [...]int{
 
@@ -2146,187 +2164,187 @@ var yyChk = [...]int{
 	123, 50, -180, -125, -90, 52, -39, -51, -98, -95,
 	54, 218, 220, 221, 51, -37, -146, 105, -161, -162,
 	-163, -118, 58, 59, -155, -156, -164, 126, 129, 125,
-	-157, 120, 28, -151, 67, 72, -147, 202, -141, 53,
-	-141, -141, -141, -141, -145, 177, -145, -145, -145, 53,
-	53, -141, -141, -141, -149, 53, -149, -149, -150, 53,
-	-150, -121, 52, -51, -174, 246, -175, 56, -129, 23,
-	-129, -111, 117, 114, 115, -171, 113, 199, 177, 65,
-	29, 15, 236, 142, 249, 56, 143, -51, -51, -129,
-	-106, 11, 90, 37, -37, -37, -124, -84, -87, -101,
-	19, 11, 33, 33, -34, 67, 68, 69, 109, -180,
-	-68, -61, -61, -61, -33, 137, 71, -181, -181, -34,
-	54, -37, -181, -181, -181, 54, 52, 22, 54, 11,
-	109, 54, 11, -181, -34, -79, -77, 78, -37, -181,
-	-181, -181, -181, -181, -59, 30, 33, -2, -180, -180,
-	-55, 54, 12, 80, -44, -43, 51, 52, -45, 51,
-	-43, 41, 41, 120, 120, 120, -91, -117, -55, -39,
-	-55, -99, -100, 222, 219, 225, 56, 54, -163, 80,
-	53, 28, -157, -157, 56, 56, -142, 29, 67, -148,
-	203, 59, -145, -145, -146, 30, -146, -146, -146, -154,
-	58, -154, 59, 59, 51, -117, -129, -173, -172, -118,
-	-128, -177, 148, 127, 128, 131, 130, 56, 120, 28,
-	126, 129, 142, 125, -177, 148, -112, -113, 122, 22,
-	120, 28, 142, -129, -108, 88, 12, -123, -123, 38,
-	109, -51, -38, 11, 97, -118, -35, -33, 71, -61,
-	-61, -181, -36, -133, 106, 174, 136, 172, 168, 188,
-	179, 201, 170, 202, -130, -133, -61, -61, -118, -61,
-	-61, 243, -82, 79, -37, 77, -92, 51, -93, -70,
-	-72, -71, -180, -2, -88, -117, -91, -82, -97, -37,
-	-37, -37, 53, -37, -180, -180, -180, -181, 54, -82,
-	-55, 219, 223, 224, -162, -163, -166, -165, -117, 56,
-	56, -144, 51, 58, 59, 60, 67, 226, 66, 55,
-	-146, -146, 56, 106, 55, 54, 55, 54, 55, 54,
-	-51, 54, 80, -128, -117, -128, -117, -51, -128, -117,
-	58, -37, -55, -39, -181, -61, -181, -141, -141, -141,
-	-150, -141, 162, -141, 162, -181, -181, -181, 54, 19,
-	-181, 54, 19, -180, -32, 241, -37, 27, -92, 54,
-	-181, -181, -181, 54, 109, -181, -86, -89, -117, -89,
-	-89, -89, -126, -117, -86, 55, 54, -141, -152, 199,
-	9, -145, 58, -145, 59, 59, -129, -172, -163, 53,
-	26, -80, 13, -145, 56, -61, -61, -61, -61, -61,
-	-181, 58, 28, -72, 33, -2, -180, -117, -117, 54,
-	55, -181, -181, -181, -54, -168, -167, 52, 132, 65,
-	-165, -153, 126, 28, 125, 226, -146, -146, 55, 55,
-	-89, -180, -81, 14, 16, -181, -181, -181, -181, -31,
-	90, 246, 9, -70, -2, 109, -117, -167, 56, -158,
-	80, 58, -143, 65, 28, 28, 55, -169, -170, 142,
-	-37, -69, -181, 244, 48, 247, -93, -181, -117, 59,
-	58, -176, -181, 54, -117, 38, 245, 248, -174, -170,
-	33, 38, 144, 246, 145, 247, -180, 248, -61, 141,
-	-181, -181,
+	-157, 120, 28, -151, 67, 72, -147, 202, 201, -141,
+	53, -141, -141, -141, -141, -145, 177, -145, -145, -145,
+	53, 53, -141, -141, -141, -149, 53, -149, -149, -150,
+	53, -150, -121, 52, -51, -174, 246, -175, 56, -129,
+	23, -129, -111, 117, 114, 115, -171, 113, 199, 177,
+	65, 29, 15, 236, 142, 249, 56, 143, -51, -51,
+	-129, -106, 11, 90, 37, -37, -37, -124, -84, -87,
+	-101, 19, 11, 33, 33, -34, 67, 68, 69, 109,
+	-180, -68, -61, -61, -61, -33, 137, 71, -181, -181,
+	-34, 54, -37, -181, -181, -181, 54, 52, 22, 54,
+	11, 109, 54, 11, -181, -34, -79, -77, 78, -37,
+	-181, -181, -181, -181, -181, -59, 30, 33, -2, -180,
+	-180, -55, 54, 12, 80, -44, -43, 51, 52, -45,
+	51, -43, 41, 41, 120, 120, 120, -91, -117, -55,
+	-39, -55, -99, -100, 222, 219, 225, 56, 54, -163,
+	80, 53, 28, -157, -157, 56, 56, -142, 29, 67,
+	-148, 203, 59, -145, -145, -146, 30, -146, -146, -146,
+	-154, 58, -154, 59, 59, 51, -117, -129, -173, -172,
+	-118, -128, -177, 148, 127, 128, 131, 130, 56, 120,
+	28, 126, 129, 142, 125, -177, 148, -112, -113, 122,
+	22, 120, 28, 142, -129, -108, 88, 12, -123, -123,
+	38, 109, -51, -38, 11, 97, -118, -35, -33, 71,
+	-61, -61, -181, -36, -133, 106, 174, 136, 172, 168,
+	188, 179, 201, 170, 202, -130, -133, -61, -61, -118,
+	-61, -61, 243, -82, 79, -37, 77, -92, 51, -93,
+	-70, -72, -71, -180, -2, -88, -117, -91, -82, -97,
+	-37, -37, -37, 53, -37, -180, -180, -180, -181, 54,
+	-82, -55, 219, 223, 224, -162, -163, -166, -165, -117,
+	56, 56, -144, 51, 58, 59, 60, 67, 226, 66,
+	55, -146, -146, 56, 106, 55, 54, 55, 54, 55,
+	54, -51, 54, 80, -128, -117, -128, -117, -51, -128,
+	-117, 58, -37, -55, -39, -181, -61, -181, -141, -141,
+	-141, -150, -141, 162, -141, 162, -181, -181, -181, 54,
+	19, -181, 54, 19, -180, -32, 241, -37, 27, -92,
+	54, -181, -181, -181, 54, 109, -181, -86, -89, -117,
+	-89, -89, -89, -126, -117, -86, 55, 54, -141, -152,
+	199, 9, -145, 58, -145, 59, 59, -129, -172, -163,
+	53, 26, -80, 13, -145, 56, -61, -61, -61, -61,
+	-61, -181, 58, 28, -72, 33, -2, -180, -117, -117,
+	54, 55, -181, -181, -181, -54, -168, -167, 52, 132,
+	65, -165, -153, 126, 28, 125, 226, -146, -146, 55,
+	55, -89, -180, -81, 14, 16, -181, -181, -181, -181,
+	-31, 90, 246, 9, -70, -2, 109, -117, -167, 56,
+	-158, 80, 58, -143, 65, 28, 28, 55, -169, -170,
+	142, -37, -69, -181, 244, 48, 247, -93, -181, -117,
+	59, 58, -176, -181, 54, -117, 38, 245, 248, -174,
+	-170, 33, 38, 144, 246, 145, 247, -180, 248, -61,
+	141, -181, -181,
 }
 var yyDef = [...]int{
 
 	0, -2, 2, -2, 5, 6, 7, 8, 9, 10,
 	11, 12, 13, 14, 15, 16, 17, 18, 19, 20,
-	21, 508, 0, 277, 277, 277, 277, 277, 277, 0,
-	578, 561, 0, 0, 0, 0, -2, 267, 268, 0,
-	270, 271, 783, 783, 783, 783, 783, 0, 33, 34,
-	781, 1, 3, 516, 0, 0, 281, 284, 279, 0,
-	561, 0, 0, 0, 60, 0, 0, 770, 0, 771,
-	559, 559, 559, 579, 580, 583, 584, 683, 684, 685,
-	686, 687, 688, 689, 690, 691, 692, 693, 694, 695,
-	696, 697, 698, 699, 700, 701, 702, 703, 704, 705,
-	706, 707, 708, 709, 710, 711, 712, 713, 714, 715,
-	716, 717, 718, 719, 720, 721, 722, 723, 724, 725,
-	726, 727, 728, 729, 730, 731, 732, 733, 734, 735,
-	736, 737, 738, 739, 740, 741, 742, 743, 744, 745,
-	746, 747, 748, 749, 750, 751, 752, 753, 754, 755,
-	756, 757, 758, 759, 760, 761, 762, 763, 764, 765,
-	766, 767, 768, 769, 772, 773, 774, 775, 776, 777,
-	778, 779, 780, 0, 0, 562, 0, 557, 0, 557,
-	557, 557, 0, 226, 348, 587, 588, 770, 771, 0,
-	0, 0, 0, 784, 784, 784, 784, 0, 784, 255,
-	244, 246, 247, 248, 249, 784, 264, 265, 254, 266,
-	269, 272, 273, 274, 275, 276, 27, 520, 0, 0,
-	508, 29, 0, 277, 282, 283, 287, 285, 286, 278,
-	0, 295, 299, 0, 356, 0, 361, 363, -2, -2,
-	0, 398, 399, 400, 401, 402, 0, 0, 0, 0,
-	0, 0, 0, 425, 426, 427, 428, 493, 494, 495,
-	496, 497, 498, 499, 500, 365, 366, 490, 540, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 481, 0,
-	455, 455, 455, 455, 455, 455, 455, 455, 0, 0,
-	0, 0, 0, 0, 306, 308, 309, 310, 329, 0,
-	331, 0, 0, 41, 45, 0, 761, 544, -2, -2,
-	0, 0, 585, 586, -2, 690, -2, 591, 592, 593,
-	594, 595, 596, 597, 598, 599, 600, 601, 602, 603,
-	604, 605, 606, 607, 608, 609, 610, 611, 612, 613,
-	614, 615, 616, 617, 618, 619, 620, 621, 622, 623,
-	624, 625, 626, 627, 628, 629, 630, 631, 632, 633,
-	634, 635, 636, 637, 638, 639, 640, 641, 642, 643,
-	644, 645, 646, 647, 648, 649, 650, 651, 652, 653,
-	654, 655, 656, 657, 658, 659, 660, 661, 662, 663,
-	664, 665, 666, 667, 668, 669, 670, 671, 672, 673,
-	674, 675, 676, 677, 678, 679, 680, 681, 682, 0,
-	77, 0, 0, 784, 0, 67, 0, 0, 0, 0,
-	0, 784, 0, 0, 0, 0, 0, 0, 0, 225,
-	0, 227, 784, 784, 784, 784, 784, 784, 784, 784,
-	236, 785, 786, 237, 238, 239, 784, 784, 241, 0,
-	256, 0, 250, 28, 782, 22, 0, 0, 517, 0,
-	509, 510, 513, 516, 27, 284, 0, 289, 288, 280,
-	0, 296, 0, 0, 0, 300, 0, 302, 303, 0,
-	359, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	383, 384, 385, 386, 387, 388, 389, 362, 0, 376,
-	0, 0, 0, 418, 419, 420, 421, 422, 423, 0,
-	291, 27, 0, 396, 0, 0, 0, 0, 0, 0,
-	0, 0, 287, 0, 482, 0, 447, 0, 448, 449,
-	450, 451, 452, 453, 454, 0, 291, 0, 0, 43,
-	0, 347, 0, 0, 0, 0, 0, 0, 336, 0,
-	0, 339, 0, 0, 0, 0, 330, 0, 0, 350,
-	734, 332, 0, 334, 335, -2, 0, 0, 0, 39,
-	40, 0, 46, 761, 48, 49, 0, 0, 0, 157,
-	552, 553, 554, 550, 185, 0, 140, 136, 82, 83,
-	84, 129, 86, 129, 129, 129, 129, 154, 154, 154,
-	154, 112, 113, 114, 115, 116, 0, 0, 99, 129,
+	21, 510, 0, 279, 279, 279, 279, 279, 279, 0,
+	580, 563, 0, 0, 0, 0, -2, 269, 270, 0,
+	272, 273, 785, 785, 785, 785, 785, 0, 33, 34,
+	783, 1, 3, 518, 0, 0, 283, 286, 281, 0,
+	563, 0, 0, 0, 60, 0, 0, 772, 0, 773,
+	561, 561, 561, 581, 582, 585, 586, 685, 686, 687,
+	688, 689, 690, 691, 692, 693, 694, 695, 696, 697,
+	698, 699, 700, 701, 702, 703, 704, 705, 706, 707,
+	708, 709, 710, 711, 712, 713, 714, 715, 716, 717,
+	718, 719, 720, 721, 722, 723, 724, 725, 726, 727,
+	728, 729, 730, 731, 732, 733, 734, 735, 736, 737,
+	738, 739, 740, 741, 742, 743, 744, 745, 746, 747,
+	748, 749, 750, 751, 752, 753, 754, 755, 756, 757,
+	758, 759, 760, 761, 762, 763, 764, 765, 766, 767,
+	768, 769, 770, 771, 774, 775, 776, 777, 778, 779,
+	780, 781, 782, 0, 0, 564, 0, 559, 0, 559,
+	559, 559, 0, 228, 350, 589, 590, 772, 773, 0,
+	0, 0, 0, 786, 786, 786, 786, 0, 786, 257,
+	246, 248, 249, 250, 251, 786, 266, 267, 256, 268,
+	271, 274, 275, 276, 277, 278, 27, 522, 0, 0,
+	510, 29, 0, 279, 284, 285, 289, 287, 288, 280,
+	0, 297, 301, 0, 358, 0, 363, 365, -2, -2,
+	0, 400, 401, 402, 403, 404, 0, 0, 0, 0,
+	0, 0, 0, 427, 428, 429, 430, 495, 496, 497,
+	498, 499, 500, 501, 502, 367, 368, 492, 542, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 483, 0,
+	457, 457, 457, 457, 457, 457, 457, 457, 0, 0,
+	0, 0, 0, 0, 308, 310, 311, 312, 331, 0,
+	333, 0, 0, 41, 45, 0, 763, 546, -2, -2,
+	0, 0, 587, 588, -2, 692, -2, 593, 594, 595,
+	596, 597, 598, 599, 600, 601, 602, 603, 604, 605,
+	606, 607, 608, 609, 610, 611, 612, 613, 614, 615,
+	616, 617, 618, 619, 620, 621, 622, 623, 624, 625,
+	626, 627, 628, 629, 630, 631, 632, 633, 634, 635,
+	636, 637, 638, 639, 640, 641, 642, 643, 644, 645,
+	646, 647, 648, 649, 650, 651, 652, 653, 654, 655,
+	656, 657, 658, 659, 660, 661, 662, 663, 664, 665,
+	666, 667, 668, 669, 670, 671, 672, 673, 674, 675,
+	676, 677, 678, 679, 680, 681, 682, 683, 684, 0,
+	77, 0, 0, 786, 0, 67, 0, 0, 0, 0,
+	0, 786, 0, 0, 0, 0, 0, 0, 0, 227,
+	0, 229, 786, 786, 786, 786, 786, 786, 786, 786,
+	238, 787, 788, 239, 240, 241, 786, 786, 243, 0,
+	258, 0, 252, 28, 784, 22, 0, 0, 519, 0,
+	511, 512, 515, 518, 27, 286, 0, 291, 290, 282,
+	0, 298, 0, 0, 0, 302, 0, 304, 305, 0,
+	361, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	385, 386, 387, 388, 389, 390, 391, 364, 0, 378,
+	0, 0, 0, 420, 421, 422, 423, 424, 425, 0,
+	293, 27, 0, 398, 0, 0, 0, 0, 0, 0,
+	0, 0, 289, 0, 484, 0, 449, 0, 450, 451,
+	452, 453, 454, 455, 456, 0, 293, 0, 0, 43,
+	0, 349, 0, 0, 0, 0, 0, 0, 338, 0,
+	0, 341, 0, 0, 0, 0, 332, 0, 0, 352,
+	736, 334, 0, 336, 337, -2, 0, 0, 0, 39,
+	40, 0, 46, 763, 48, 49, 0, 0, 0, 158,
+	554, 555, 556, 552, 187, 0, 141, 136, 82, 83,
+	84, 129, 86, 129, 129, 129, 129, 155, 155, 155,
+	155, 112, 113, 114, 115, 116, 0, 0, 99, 129,
 	129, 129, 103, 119, 120, 121, 122, 123, 124, 125,
 	126, 87, 88, 89, 90, 91, 92, 93, 131, 131,
-	131, 133, 133, 581, 62, 0, 70, 0, 784, 0,
-	784, 75, 0, 201, 0, 220, 558, 0, 784, 223,
-	224, 349, 589, 590, 228, 229, 230, 231, 232, 233,
-	234, 235, 240, 243, 257, 251, 252, 245, 521, 0,
-	0, 0, 0, 0, 512, 514, 515, 520, 30, 287,
-	0, 501, 0, 0, 0, 290, 25, 357, 358, 360,
-	377, 0, 379, 381, 301, 297, 0, 491, -2, 367,
-	368, 392, 393, 394, 0, 0, 0, 0, 390, 372,
-	0, 403, 404, 405, 406, 407, 408, 409, 410, 411,
-	412, 413, 414, 417, 466, 467, 0, 415, 416, 424,
-	0, 0, 292, 293, 395, 0, 539, 27, 0, 0,
-	0, 0, 0, 490, 0, 0, 0, 0, 488, 485,
-	0, 0, 456, 0, 0, 0, 0, 0, 0, 346,
-	354, 541, 0, 307, 325, 327, 0, 322, 337, 338,
-	340, 0, 342, 0, 344, 345, 311, 312, 313, 0,
-	0, 0, 0, 333, 354, 0, 354, 42, 545, 47,
-	0, 0, 52, 53, 546, 547, 548, 0, 76, 186,
-	188, 191, 192, 193, 78, 79, 0, 0, 0, 0,
-	0, 180, 181, 143, 141, 0, 138, 137, 85, 0,
-	154, 154, 106, 107, 157, 0, 157, 157, 157, 0,
-	0, 100, 101, 102, 94, 0, 95, 96, 97, 0,
-	98, 0, 0, 784, 64, 0, 68, 69, 65, 560,
-	66, 783, 0, 0, 573, 202, 563, 564, 565, 566,
-	567, 568, 569, 570, 571, 572, 0, 219, 784, 222,
-	260, 0, 0, 0, 518, 519, 0, 511, 23, 0,
-	555, 556, 502, 503, 304, 378, 380, 382, 0, 291,
-	369, 390, 373, 0, 370, 0, 0, 364, 429, 0,
-	0, 397, -2, 432, 433, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 508, 0, 486, 0, 0, 446,
-	457, 458, 459, 460, 533, 0, 0, -2, 0, 0,
-	508, 0, 0, 0, 319, 326, 0, 0, 320, 0,
-	321, 341, 343, 0, 0, 0, 0, 317, 508, 354,
-	38, 50, 51, 0, 0, 57, 158, 0, 189, 0,
-	0, 175, 0, 0, 178, 179, 150, 0, 142, 81,
-	139, 0, 157, 157, 108, 0, 109, 110, 111, 0,
-	127, 0, 0, 0, 0, 582, 63, 71, 72, 0,
-	194, 783, 0, 203, 204, 205, 206, 207, 208, 209,
-	210, 211, 212, 213, 783, 0, 0, 783, 574, 575,
-	576, 577, 0, 221, 242, 0, 0, 258, 259, 522,
-	0, 24, 354, 0, 298, 492, 0, 371, 0, 391,
-	374, 430, 294, 0, 129, 129, 471, 129, 133, 474,
-	129, 476, 129, 479, 0, 0, 0, 0, 491, 0,
-	0, 0, 483, 445, 489, 0, 31, 0, 533, 523,
-	535, 537, 0, 27, 0, 529, 0, 516, 542, 355,
-	543, 323, 0, 328, 0, 0, 0, 331, 0, 516,
-	37, 54, 55, 56, 187, 190, 0, 182, 129, 176,
-	177, 152, 0, 144, 145, 146, 147, 148, 149, 130,
-	104, 105, 155, 156, 154, 0, 154, 0, 134, 0,
-	784, 0, 0, 195, 0, 196, 198, 199, 200, 0,
-	261, 262, 504, 305, 431, 375, 434, 468, 154, 472,
-	473, 475, 477, 478, 480, 436, 435, 437, 0, 0,
-	440, 0, 0, 0, 0, 0, 487, 0, 32, 0,
-	538, -2, 0, 0, 0, 44, 35, 0, 315, 0,
-	0, 0, 350, 318, 36, 167, 0, 184, 159, 153,
-	0, 157, 128, 157, 0, 0, 61, 73, 74, 0,
-	0, 506, 0, 469, 470, 0, 0, 0, 0, 461,
-	444, 484, 0, 536, 0, -2, 0, 531, 530, 0,
-	324, 351, 352, 353, 314, 166, 168, 0, 173, 0,
-	183, 164, 0, 161, 163, 151, 117, 118, 132, 135,
-	0, 0, 26, 0, 0, 438, 439, 441, 442, 0,
-	0, 0, 0, 526, 27, 0, 316, 169, 170, 0,
-	174, 172, 80, 0, 160, 162, 67, 0, 215, 0,
-	507, 505, 443, 0, 0, 0, 534, -2, 532, 171,
-	165, 70, 214, 0, 0, 462, 0, 465, 197, 216,
-	0, 463, 0, 0, 0, 0, 0, 464, 0, 0,
-	217, 218,
+	131, 133, 133, 583, 62, 0, 70, 0, 786, 0,
+	786, 75, 0, 203, 0, 222, 560, 0, 786, 225,
+	226, 351, 591, 592, 230, 231, 232, 233, 234, 235,
+	236, 237, 242, 245, 259, 253, 254, 247, 523, 0,
+	0, 0, 0, 0, 514, 516, 517, 522, 30, 289,
+	0, 503, 0, 0, 0, 292, 25, 359, 360, 362,
+	379, 0, 381, 383, 303, 299, 0, 493, -2, 369,
+	370, 394, 395, 396, 0, 0, 0, 0, 392, 374,
+	0, 405, 406, 407, 408, 409, 410, 411, 412, 413,
+	414, 415, 416, 419, 468, 469, 0, 417, 418, 426,
+	0, 0, 294, 295, 397, 0, 541, 27, 0, 0,
+	0, 0, 0, 492, 0, 0, 0, 0, 490, 487,
+	0, 0, 458, 0, 0, 0, 0, 0, 0, 348,
+	356, 543, 0, 309, 327, 329, 0, 324, 339, 340,
+	342, 0, 344, 0, 346, 347, 313, 314, 315, 0,
+	0, 0, 0, 335, 356, 0, 356, 42, 547, 47,
+	0, 0, 52, 53, 548, 549, 550, 0, 76, 188,
+	190, 193, 194, 195, 78, 79, 0, 0, 0, 0,
+	181, 182, 183, 144, 142, 0, 139, 137, 138, 85,
+	0, 155, 155, 106, 107, 158, 0, 158, 158, 158,
+	0, 0, 100, 101, 102, 94, 0, 95, 96, 97,
+	0, 98, 0, 0, 786, 64, 0, 68, 69, 65,
+	562, 66, 785, 0, 0, 575, 204, 565, 566, 567,
+	568, 569, 570, 571, 572, 573, 574, 0, 221, 786,
+	224, 262, 0, 0, 0, 520, 521, 0, 513, 23,
+	0, 557, 558, 504, 505, 306, 380, 382, 384, 0,
+	293, 371, 392, 375, 0, 372, 0, 0, 366, 431,
+	0, 0, 399, -2, 434, 435, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 510, 0, 488, 0, 0,
+	448, 459, 460, 461, 462, 535, 0, 0, -2, 0,
+	0, 510, 0, 0, 0, 321, 328, 0, 0, 322,
+	0, 323, 343, 345, 0, 0, 0, 0, 319, 510,
+	356, 38, 50, 51, 0, 0, 57, 159, 0, 191,
+	0, 0, 176, 0, 0, 179, 180, 151, 0, 143,
+	81, 140, 0, 158, 158, 108, 0, 109, 110, 111,
+	0, 127, 0, 0, 0, 0, 584, 63, 71, 72,
+	0, 196, 785, 0, 205, 206, 207, 208, 209, 210,
+	211, 212, 213, 214, 215, 785, 0, 0, 785, 576,
+	577, 578, 579, 0, 223, 244, 0, 0, 260, 261,
+	524, 0, 24, 356, 0, 300, 494, 0, 373, 0,
+	393, 376, 432, 296, 0, 129, 129, 473, 129, 133,
+	476, 129, 478, 129, 481, 0, 0, 0, 0, 493,
+	0, 0, 0, 485, 447, 491, 0, 31, 0, 535,
+	525, 537, 539, 0, 27, 0, 531, 0, 518, 544,
+	357, 545, 325, 0, 330, 0, 0, 0, 333, 0,
+	518, 37, 54, 55, 56, 189, 192, 0, 184, 129,
+	177, 178, 153, 0, 145, 146, 147, 148, 149, 150,
+	130, 104, 105, 156, 157, 155, 0, 155, 0, 134,
+	0, 786, 0, 0, 197, 0, 198, 200, 201, 202,
+	0, 263, 264, 506, 307, 433, 377, 436, 470, 155,
+	474, 475, 477, 479, 480, 482, 438, 437, 439, 0,
+	0, 442, 0, 0, 0, 0, 0, 489, 0, 32,
+	0, 540, -2, 0, 0, 0, 44, 35, 0, 317,
+	0, 0, 0, 352, 320, 36, 168, 0, 186, 160,
+	154, 0, 158, 128, 158, 0, 0, 61, 73, 74,
+	0, 0, 508, 0, 471, 472, 0, 0, 0, 0,
+	463, 446, 486, 0, 538, 0, -2, 0, 533, 532,
+	0, 326, 353, 354, 355, 316, 167, 169, 0, 174,
+	0, 185, 165, 0, 162, 164, 152, 117, 118, 132,
+	135, 0, 0, 26, 0, 0, 440, 441, 443, 444,
+	0, 0, 0, 0, 528, 27, 0, 318, 170, 171,
+	0, 175, 173, 80, 0, 161, 163, 67, 0, 217,
+	0, 509, 507, 445, 0, 0, 0, 536, -2, 534,
+	172, 166, 70, 216, 0, 0, 464, 0, 467, 199,
+	218, 0, 465, 0, 0, 0, 0, 0, 466, 0,
+	0, 219, 220,
 }
 var yyTok1 = [...]int{
 
@@ -2714,29 +2732,29 @@ yydefault:
 
 	case 1:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:302
+//line sql.y:302
 		{
 			setParseTree(yylex, yyDollar[1].statement)
 		}
 	case 2:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:307
+//line sql.y:307
 		{
 		}
 	case 3:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:308
+//line sql.y:308
 		{
 		}
 	case 4:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:312
+//line sql.y:312
 		{
 			yyVAL.statement = yyDollar[1].selStmt
 		}
 	case 22:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:335
+//line sql.y:335
 		{
 			sel := yyDollar[1].selStmt.(*Select)
 			sel.OrderBy = yyDollar[2].orderBy
@@ -2746,55 +2764,55 @@ yydefault:
 		}
 	case 23:
 		yyDollar = yyS[yypt-6 : yypt+1]
-		//line sql.y:343
+//line sql.y:343
 		{
 			yyVAL.selStmt = &Union{Type: yyDollar[2].str, Left: yyDollar[1].selStmt, Right: yyDollar[3].selStmt, OrderBy: yyDollar[4].orderBy, Limit: yyDollar[5].limit, Lock: yyDollar[6].str}
 		}
 	case 24:
 		yyDollar = yyS[yypt-7 : yypt+1]
-		//line sql.y:347
+//line sql.y:347
 		{
 			yyVAL.selStmt = &Select{Comments: Comments(yyDollar[2].bytes2), Cache: yyDollar[3].str, SelectExprs: SelectExprs{Nextval{Expr: yyDollar[5].expr}}, From: TableExprs{&AliasedTableExpr{Expr: yyDollar[7].tableName}}}
 		}
 	case 25:
 		yyDollar = yyS[yypt-5 : yypt+1]
-		//line sql.y:353
+//line sql.y:353
 		{
 			yyVAL.statement = &Stream{Comments: Comments(yyDollar[2].bytes2), SelectExpr: yyDollar[3].selectExpr, Table: yyDollar[5].tableName}
 		}
 	case 26:
 		yyDollar = yyS[yypt-10 : yypt+1]
-		//line sql.y:360
+//line sql.y:360
 		{
 			yyVAL.selStmt = &Select{Comments: Comments(yyDollar[2].bytes2), Cache: yyDollar[3].str, Distinct: yyDollar[4].str, Hints: yyDollar[5].str, SelectExprs: yyDollar[6].selectExprs, From: yyDollar[7].tableExprs, Where: NewWhere(WhereStr, yyDollar[8].expr), GroupBy: GroupBy(yyDollar[9].exprs), Having: NewWhere(HavingStr, yyDollar[10].expr)}
 		}
 	case 27:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:366
+//line sql.y:366
 		{
 			yyVAL.selStmt = yyDollar[1].selStmt
 		}
 	case 28:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:370
+//line sql.y:370
 		{
 			yyVAL.selStmt = &ParenSelect{Select: yyDollar[2].selStmt}
 		}
 	case 29:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:376
+//line sql.y:376
 		{
 			yyVAL.selStmt = yyDollar[1].selStmt
 		}
 	case 30:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:380
+//line sql.y:380
 		{
 			yyVAL.selStmt = &ParenSelect{Select: yyDollar[2].selStmt}
 		}
 	case 31:
 		yyDollar = yyS[yypt-7 : yypt+1]
-		//line sql.y:387
+//line sql.y:387
 		{
 			// insert_data returns a *Insert pre-filled with Columns & Values
 			ins := yyDollar[6].ins
@@ -2808,7 +2826,7 @@ yydefault:
 		}
 	case 32:
 		yyDollar = yyS[yypt-8 : yypt+1]
-		//line sql.y:399
+//line sql.y:399
 		{
 			cols := make(Columns, 0, len(yyDollar[7].updateExprs))
 			vals := make(ValTuple, 0, len(yyDollar[8].updateExprs))
@@ -2820,193 +2838,193 @@ yydefault:
 		}
 	case 33:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:411
+//line sql.y:411
 		{
 			yyVAL.str = InsertStr
 		}
 	case 34:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:415
+//line sql.y:415
 		{
 			yyVAL.str = ReplaceStr
 		}
 	case 35:
 		yyDollar = yyS[yypt-8 : yypt+1]
-		//line sql.y:421
+//line sql.y:421
 		{
 			yyVAL.statement = &Update{Comments: Comments(yyDollar[2].bytes2), TableExprs: yyDollar[3].tableExprs, Exprs: yyDollar[5].updateExprs, Where: NewWhere(WhereStr, yyDollar[6].expr), OrderBy: yyDollar[7].orderBy, Limit: yyDollar[8].limit}
 		}
 	case 36:
 		yyDollar = yyS[yypt-8 : yypt+1]
-		//line sql.y:427
+//line sql.y:427
 		{
 			yyVAL.statement = &Delete{Comments: Comments(yyDollar[2].bytes2), TableExprs: TableExprs{&AliasedTableExpr{Expr: yyDollar[4].tableName}}, Partitions: yyDollar[5].partitions, Where: NewWhere(WhereStr, yyDollar[6].expr), OrderBy: yyDollar[7].orderBy, Limit: yyDollar[8].limit}
 		}
 	case 37:
 		yyDollar = yyS[yypt-7 : yypt+1]
-		//line sql.y:431
+//line sql.y:431
 		{
 			yyVAL.statement = &Delete{Comments: Comments(yyDollar[2].bytes2), Targets: yyDollar[4].tableNames, TableExprs: yyDollar[6].tableExprs, Where: NewWhere(WhereStr, yyDollar[7].expr)}
 		}
 	case 38:
 		yyDollar = yyS[yypt-6 : yypt+1]
-		//line sql.y:435
+//line sql.y:435
 		{
 			yyVAL.statement = &Delete{Comments: Comments(yyDollar[2].bytes2), Targets: yyDollar[3].tableNames, TableExprs: yyDollar[5].tableExprs, Where: NewWhere(WhereStr, yyDollar[6].expr)}
 		}
 	case 39:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:440
+//line sql.y:440
 		{
 		}
 	case 40:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:441
+//line sql.y:441
 		{
 		}
 	case 41:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:445
+//line sql.y:445
 		{
 			yyVAL.tableNames = TableNames{yyDollar[1].tableName}
 		}
 	case 42:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:449
+//line sql.y:449
 		{
 			yyVAL.tableNames = append(yyVAL.tableNames, yyDollar[3].tableName)
 		}
 	case 43:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:454
+//line sql.y:454
 		{
 			yyVAL.partitions = nil
 		}
 	case 44:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:458
+//line sql.y:458
 		{
 			yyVAL.partitions = yyDollar[3].partitions
 		}
 	case 45:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:464
+//line sql.y:464
 		{
 			yyVAL.statement = &Set{Comments: Comments(yyDollar[2].bytes2), Exprs: yyDollar[3].setExprs}
 		}
 	case 46:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:468
+//line sql.y:468
 		{
 			yyVAL.statement = &Set{Comments: Comments(yyDollar[2].bytes2), Scope: yyDollar[3].str, Exprs: yyDollar[4].setExprs}
 		}
 	case 47:
 		yyDollar = yyS[yypt-5 : yypt+1]
-		//line sql.y:472
+//line sql.y:472
 		{
 			yyVAL.statement = &Set{Comments: Comments(yyDollar[2].bytes2), Scope: yyDollar[3].str, Exprs: yyDollar[5].setExprs}
 		}
 	case 48:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:476
+//line sql.y:476
 		{
 			yyVAL.statement = &Set{Comments: Comments(yyDollar[2].bytes2), Exprs: yyDollar[4].setExprs}
 		}
 	case 49:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:482
+//line sql.y:482
 		{
 			yyVAL.setExprs = SetExprs{yyDollar[1].setExpr}
 		}
 	case 50:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:486
+//line sql.y:486
 		{
 			yyVAL.setExprs = append(yyVAL.setExprs, yyDollar[3].setExpr)
 		}
 	case 51:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:492
+//line sql.y:492
 		{
 			yyVAL.setExpr = yyDollar[3].setExpr
 		}
 	case 52:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:496
+//line sql.y:496
 		{
 			yyVAL.setExpr = &SetExpr{Name: NewColIdent("tx_read_only"), Expr: NewIntVal([]byte("0"))}
 		}
 	case 53:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:500
+//line sql.y:500
 		{
 			yyVAL.setExpr = &SetExpr{Name: NewColIdent("tx_read_only"), Expr: NewIntVal([]byte("1"))}
 		}
 	case 54:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:506
+//line sql.y:506
 		{
 			yyVAL.setExpr = &SetExpr{Name: NewColIdent("tx_isolation"), Expr: NewStrVal([]byte("repeatable read"))}
 		}
 	case 55:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:510
+//line sql.y:510
 		{
 			yyVAL.setExpr = &SetExpr{Name: NewColIdent("tx_isolation"), Expr: NewStrVal([]byte("read committed"))}
 		}
 	case 56:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:514
+//line sql.y:514
 		{
 			yyVAL.setExpr = &SetExpr{Name: NewColIdent("tx_isolation"), Expr: NewStrVal([]byte("read uncommitted"))}
 		}
 	case 57:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:518
+//line sql.y:518
 		{
 			yyVAL.setExpr = &SetExpr{Name: NewColIdent("tx_isolation"), Expr: NewStrVal([]byte("serializable"))}
 		}
 	case 58:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:524
+//line sql.y:524
 		{
 			yyVAL.str = SessionStr
 		}
 	case 59:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:528
+//line sql.y:528
 		{
 			yyVAL.str = GlobalStr
 		}
 	case 60:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:534
+//line sql.y:534
 		{
 			yyDollar[1].ddl.TableSpec = yyDollar[2].TableSpec
 			yyVAL.statement = yyDollar[1].ddl
 		}
 	case 61:
 		yyDollar = yyS[yypt-8 : yypt+1]
-		//line sql.y:539
+//line sql.y:539
 		{
 			// Change this to an alter statement
 			yyVAL.statement = &DDL{Action: AlterStr, Table: yyDollar[7].tableName, NewName: yyDollar[7].tableName}
 		}
 	case 62:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:544
+//line sql.y:544
 		{
 			yyVAL.statement = &DDL{Action: CreateStr, NewName: yyDollar[3].tableName.ToViewName()}
 		}
 	case 63:
 		yyDollar = yyS[yypt-6 : yypt+1]
-		//line sql.y:548
+//line sql.y:548
 		{
 			yyVAL.statement = &DDL{Action: CreateStr, NewName: yyDollar[5].tableName.ToViewName()}
 		}
 	case 64:
 		yyDollar = yyS[yypt-5 : yypt+1]
-		//line sql.y:552
+//line sql.y:552
 		{
 			yyVAL.statement = &DDL{Action: CreateVindexStr, VindexSpec: &VindexSpec{
 				Name:   yyDollar[3].colIdent,
@@ -3016,102 +3034,102 @@ yydefault:
 		}
 	case 65:
 		yyDollar = yyS[yypt-5 : yypt+1]
-		//line sql.y:560
+//line sql.y:560
 		{
 			yyVAL.statement = &DBDDL{Action: CreateStr, DBName: string(yyDollar[4].bytes)}
 		}
 	case 66:
 		yyDollar = yyS[yypt-5 : yypt+1]
-		//line sql.y:564
+//line sql.y:564
 		{
 			yyVAL.statement = &DBDDL{Action: CreateStr, DBName: string(yyDollar[4].bytes)}
 		}
 	case 67:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:569
+//line sql.y:569
 		{
 			yyVAL.colIdent = NewColIdent("")
 		}
 	case 68:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:573
+//line sql.y:573
 		{
 			yyVAL.colIdent = yyDollar[2].colIdent
 		}
 	case 69:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:579
+//line sql.y:579
 		{
 			yyVAL.colIdent = NewColIdent(string(yyDollar[1].bytes))
 		}
 	case 70:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:584
+//line sql.y:584
 		{
 			var v []VindexParam
 			yyVAL.vindexParams = v
 		}
 	case 71:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:589
+//line sql.y:589
 		{
 			yyVAL.vindexParams = yyDollar[2].vindexParams
 		}
 	case 72:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:595
+//line sql.y:595
 		{
 			yyVAL.vindexParams = make([]VindexParam, 0, 4)
 			yyVAL.vindexParams = append(yyVAL.vindexParams, yyDollar[1].vindexParam)
 		}
 	case 73:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:600
+//line sql.y:600
 		{
 			yyVAL.vindexParams = append(yyVAL.vindexParams, yyDollar[3].vindexParam)
 		}
 	case 74:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:606
+//line sql.y:606
 		{
 			yyVAL.vindexParam = VindexParam{Key: yyDollar[1].colIdent, Val: yyDollar[3].str}
 		}
 	case 75:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:612
+//line sql.y:612
 		{
 			yyVAL.ddl = &DDL{Action: CreateStr, NewName: yyDollar[4].tableName}
 			setDDL(yylex, yyVAL.ddl)
 		}
 	case 76:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:619
+//line sql.y:619
 		{
 			yyVAL.TableSpec = yyDollar[2].TableSpec
 			yyVAL.TableSpec.Options = yyDollar[4].str
 		}
 	case 77:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:626
+//line sql.y:626
 		{
 			yyVAL.TableSpec = &TableSpec{}
 			yyVAL.TableSpec.AddColumn(yyDollar[1].columnDefinition)
 		}
 	case 78:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:631
+//line sql.y:631
 		{
 			yyVAL.TableSpec.AddColumn(yyDollar[3].columnDefinition)
 		}
 	case 79:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:635
+//line sql.y:635
 		{
 			yyVAL.TableSpec.AddIndex(yyDollar[3].indexDefinition)
 		}
 	case 80:
 		yyDollar = yyS[yypt-8 : yypt+1]
-		//line sql.y:641
+//line sql.y:641
 		{
 			yyDollar[2].columnType.NotNull = yyDollar[3].boolVal
 			yyDollar[2].columnType.Default = yyDollar[4].optVal
@@ -3123,7 +3141,7 @@ yydefault:
 		}
 	case 81:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:652
+//line sql.y:652
 		{
 			yyVAL.columnType = yyDollar[1].columnType
 			yyVAL.columnType.Unsigned = yyDollar[2].boolVal
@@ -3131,62 +3149,62 @@ yydefault:
 		}
 	case 85:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:663
+//line sql.y:663
 		{
 			yyVAL.columnType = yyDollar[1].columnType
 			yyVAL.columnType.Length = yyDollar[2].optVal
 		}
 	case 86:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:668
+//line sql.y:668
 		{
 			yyVAL.columnType = yyDollar[1].columnType
 		}
 	case 87:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:674
+//line sql.y:674
 		{
 			yyVAL.columnType = ColumnType{Type: string(yyDollar[1].bytes)}
 		}
 	case 88:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:678
+//line sql.y:678
 		{
 			yyVAL.columnType = ColumnType{Type: string(yyDollar[1].bytes)}
 		}
 	case 89:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:682
+//line sql.y:682
 		{
 			yyVAL.columnType = ColumnType{Type: string(yyDollar[1].bytes)}
 		}
 	case 90:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:686
+//line sql.y:686
 		{
 			yyVAL.columnType = ColumnType{Type: string(yyDollar[1].bytes)}
 		}
 	case 91:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:690
+//line sql.y:690
 		{
 			yyVAL.columnType = ColumnType{Type: string(yyDollar[1].bytes)}
 		}
 	case 92:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:694
+//line sql.y:694
 		{
 			yyVAL.columnType = ColumnType{Type: string(yyDollar[1].bytes)}
 		}
 	case 93:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:698
+//line sql.y:698
 		{
 			yyVAL.columnType = ColumnType{Type: string(yyDollar[1].bytes)}
 		}
 	case 94:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:704
+//line sql.y:704
 		{
 			yyVAL.columnType = ColumnType{Type: string(yyDollar[1].bytes)}
 			yyVAL.columnType.Length = yyDollar[2].LengthScaleOption.Length
@@ -3194,7 +3212,7 @@ yydefault:
 		}
 	case 95:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:710
+//line sql.y:710
 		{
 			yyVAL.columnType = ColumnType{Type: string(yyDollar[1].bytes)}
 			yyVAL.columnType.Length = yyDollar[2].LengthScaleOption.Length
@@ -3202,7 +3220,7 @@ yydefault:
 		}
 	case 96:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:716
+//line sql.y:716
 		{
 			yyVAL.columnType = ColumnType{Type: string(yyDollar[1].bytes)}
 			yyVAL.columnType.Length = yyDollar[2].LengthScaleOption.Length
@@ -3210,7 +3228,7 @@ yydefault:
 		}
 	case 97:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:722
+//line sql.y:722
 		{
 			yyVAL.columnType = ColumnType{Type: string(yyDollar[1].bytes)}
 			yyVAL.columnType.Length = yyDollar[2].LengthScaleOption.Length
@@ -3218,7 +3236,7 @@ yydefault:
 		}
 	case 98:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:728
+//line sql.y:728
 		{
 			yyVAL.columnType = ColumnType{Type: string(yyDollar[1].bytes)}
 			yyVAL.columnType.Length = yyDollar[2].LengthScaleOption.Length
@@ -3226,206 +3244,206 @@ yydefault:
 		}
 	case 99:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:736
+//line sql.y:736
 		{
 			yyVAL.columnType = ColumnType{Type: string(yyDollar[1].bytes)}
 		}
 	case 100:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:740
+//line sql.y:740
 		{
 			yyVAL.columnType = ColumnType{Type: string(yyDollar[1].bytes), Length: yyDollar[2].optVal}
 		}
 	case 101:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:744
+//line sql.y:744
 		{
 			yyVAL.columnType = ColumnType{Type: string(yyDollar[1].bytes), Length: yyDollar[2].optVal}
 		}
 	case 102:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:748
+//line sql.y:748
 		{
 			yyVAL.columnType = ColumnType{Type: string(yyDollar[1].bytes), Length: yyDollar[2].optVal}
 		}
 	case 103:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:752
+//line sql.y:752
 		{
 			yyVAL.columnType = ColumnType{Type: string(yyDollar[1].bytes)}
 		}
 	case 104:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:758
+//line sql.y:758
 		{
 			yyVAL.columnType = ColumnType{Type: string(yyDollar[1].bytes), Length: yyDollar[2].optVal, Charset: yyDollar[3].str, Collate: yyDollar[4].str}
 		}
 	case 105:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:762
+//line sql.y:762
 		{
 			yyVAL.columnType = ColumnType{Type: string(yyDollar[1].bytes), Length: yyDollar[2].optVal, Charset: yyDollar[3].str, Collate: yyDollar[4].str}
 		}
 	case 106:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:766
+//line sql.y:766
 		{
 			yyVAL.columnType = ColumnType{Type: string(yyDollar[1].bytes), Length: yyDollar[2].optVal}
 		}
 	case 107:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:770
+//line sql.y:770
 		{
 			yyVAL.columnType = ColumnType{Type: string(yyDollar[1].bytes), Length: yyDollar[2].optVal}
 		}
 	case 108:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:774
+//line sql.y:774
 		{
 			yyVAL.columnType = ColumnType{Type: string(yyDollar[1].bytes), Charset: yyDollar[2].str, Collate: yyDollar[3].str}
 		}
 	case 109:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:778
+//line sql.y:778
 		{
 			yyVAL.columnType = ColumnType{Type: string(yyDollar[1].bytes), Charset: yyDollar[2].str, Collate: yyDollar[3].str}
 		}
 	case 110:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:782
+//line sql.y:782
 		{
 			yyVAL.columnType = ColumnType{Type: string(yyDollar[1].bytes), Charset: yyDollar[2].str, Collate: yyDollar[3].str}
 		}
 	case 111:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:786
+//line sql.y:786
 		{
 			yyVAL.columnType = ColumnType{Type: string(yyDollar[1].bytes), Charset: yyDollar[2].str, Collate: yyDollar[3].str}
 		}
 	case 112:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:790
+//line sql.y:790
 		{
 			yyVAL.columnType = ColumnType{Type: string(yyDollar[1].bytes)}
 		}
 	case 113:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:794
+//line sql.y:794
 		{
 			yyVAL.columnType = ColumnType{Type: string(yyDollar[1].bytes)}
 		}
 	case 114:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:798
+//line sql.y:798
 		{
 			yyVAL.columnType = ColumnType{Type: string(yyDollar[1].bytes)}
 		}
 	case 115:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:802
+//line sql.y:802
 		{
 			yyVAL.columnType = ColumnType{Type: string(yyDollar[1].bytes)}
 		}
 	case 116:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:806
+//line sql.y:806
 		{
 			yyVAL.columnType = ColumnType{Type: string(yyDollar[1].bytes)}
 		}
 	case 117:
 		yyDollar = yyS[yypt-6 : yypt+1]
-		//line sql.y:810
+//line sql.y:810
 		{
 			yyVAL.columnType = ColumnType{Type: string(yyDollar[1].bytes), EnumValues: yyDollar[3].strs, Charset: yyDollar[5].str, Collate: yyDollar[6].str}
 		}
 	case 118:
 		yyDollar = yyS[yypt-6 : yypt+1]
-		//line sql.y:815
+//line sql.y:815
 		{
 			yyVAL.columnType = ColumnType{Type: string(yyDollar[1].bytes), EnumValues: yyDollar[3].strs, Charset: yyDollar[5].str, Collate: yyDollar[6].str}
 		}
 	case 119:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:821
+//line sql.y:821
 		{
 			yyVAL.columnType = ColumnType{Type: string(yyDollar[1].bytes)}
 		}
 	case 120:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:825
+//line sql.y:825
 		{
 			yyVAL.columnType = ColumnType{Type: string(yyDollar[1].bytes)}
 		}
 	case 121:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:829
+//line sql.y:829
 		{
 			yyVAL.columnType = ColumnType{Type: string(yyDollar[1].bytes)}
 		}
 	case 122:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:833
+//line sql.y:833
 		{
 			yyVAL.columnType = ColumnType{Type: string(yyDollar[1].bytes)}
 		}
 	case 123:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:837
+//line sql.y:837
 		{
 			yyVAL.columnType = ColumnType{Type: string(yyDollar[1].bytes)}
 		}
 	case 124:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:841
+//line sql.y:841
 		{
 			yyVAL.columnType = ColumnType{Type: string(yyDollar[1].bytes)}
 		}
 	case 125:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:845
+//line sql.y:845
 		{
 			yyVAL.columnType = ColumnType{Type: string(yyDollar[1].bytes)}
 		}
 	case 126:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:849
+//line sql.y:849
 		{
 			yyVAL.columnType = ColumnType{Type: string(yyDollar[1].bytes)}
 		}
 	case 127:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:855
+//line sql.y:855
 		{
 			yyVAL.strs = make([]string, 0, 4)
 			yyVAL.strs = append(yyVAL.strs, "'"+string(yyDollar[1].bytes)+"'")
 		}
 	case 128:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:860
+//line sql.y:860
 		{
 			yyVAL.strs = append(yyDollar[1].strs, "'"+string(yyDollar[3].bytes)+"'")
 		}
 	case 129:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:865
+//line sql.y:865
 		{
 			yyVAL.optVal = nil
 		}
 	case 130:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:869
+//line sql.y:869
 		{
 			yyVAL.optVal = NewIntVal(yyDollar[2].bytes)
 		}
 	case 131:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:874
+//line sql.y:874
 		{
 			yyVAL.LengthScaleOption = LengthScaleOption{}
 		}
 	case 132:
 		yyDollar = yyS[yypt-5 : yypt+1]
-		//line sql.y:878
+//line sql.y:878
 		{
 			yyVAL.LengthScaleOption = LengthScaleOption{
 				Length: NewIntVal(yyDollar[2].bytes),
@@ -3434,13 +3452,13 @@ yydefault:
 		}
 	case 133:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:886
+//line sql.y:886
 		{
 			yyVAL.LengthScaleOption = LengthScaleOption{}
 		}
 	case 134:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:890
+//line sql.y:890
 		{
 			yyVAL.LengthScaleOption = LengthScaleOption{
 				Length: NewIntVal(yyDollar[2].bytes),
@@ -3448,7 +3466,7 @@ yydefault:
 		}
 	case 135:
 		yyDollar = yyS[yypt-5 : yypt+1]
-		//line sql.y:896
+//line sql.y:896
 		{
 			yyVAL.LengthScaleOption = LengthScaleOption{
 				Length: NewIntVal(yyDollar[2].bytes),
@@ -3457,374 +3475,392 @@ yydefault:
 		}
 	case 136:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:904
+//line sql.y:904
 		{
 			yyVAL.boolVal = BoolVal(false)
 		}
 	case 137:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:908
+//line sql.y:908
 		{
 			yyVAL.boolVal = BoolVal(true)
 		}
 	case 138:
-		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:913
+		yyDollar = yyS[yypt-1 : yypt+1]
+//line sql.y:912
 		{
 			yyVAL.boolVal = BoolVal(false)
 		}
 	case 139:
+		yyDollar = yyS[yypt-0 : yypt+1]
+//line sql.y:917
+		{
+			yyVAL.boolVal = BoolVal(false)
+		}
+	case 140:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:917
+//line sql.y:921
 		{
 			yyVAL.boolVal = BoolVal(true)
 		}
-	case 140:
+	case 141:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:923
+//line sql.y:927
 		{
 			yyVAL.boolVal = BoolVal(false)
 		}
-	case 141:
+	case 142:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:927
+//line sql.y:931
 		{
 			yyVAL.boolVal = BoolVal(false)
 		}
-	case 142:
+	case 143:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:931
+//line sql.y:935
 		{
 			yyVAL.boolVal = BoolVal(true)
 		}
-	case 143:
+	case 144:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:936
+//line sql.y:940
 		{
 			yyVAL.optVal = nil
 		}
-	case 144:
+	case 145:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:940
+//line sql.y:944
 		{
 			yyVAL.optVal = NewStrVal(yyDollar[2].bytes)
 		}
-	case 145:
+	case 146:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:944
+//line sql.y:948
 		{
 			yyVAL.optVal = NewIntVal(yyDollar[2].bytes)
 		}
-	case 146:
+	case 147:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:948
+//line sql.y:952
 		{
 			yyVAL.optVal = NewFloatVal(yyDollar[2].bytes)
 		}
-	case 147:
+	case 148:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:952
+//line sql.y:956
 		{
 			yyVAL.optVal = NewValArg(yyDollar[2].bytes)
 		}
-	case 148:
+	case 149:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:956
+//line sql.y:960
 		{
 			yyVAL.optVal = NewValArg(yyDollar[2].bytes)
 		}
-	case 149:
+	case 150:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:960
+//line sql.y:964
 		{
 			yyVAL.optVal = NewBitVal(yyDollar[2].bytes)
 		}
-	case 150:
+	case 151:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:965
+//line sql.y:969
 		{
 			yyVAL.optVal = nil
 		}
-	case 151:
+	case 152:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:969
+//line sql.y:973
 		{
 			yyVAL.optVal = NewValArg(yyDollar[3].bytes)
 		}
-	case 152:
+	case 153:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:974
+//line sql.y:978
 		{
 			yyVAL.boolVal = BoolVal(false)
 		}
-	case 153:
+	case 154:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:978
+//line sql.y:982
 		{
 			yyVAL.boolVal = BoolVal(true)
 		}
-	case 154:
+	case 155:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:983
+//line sql.y:987
 		{
 			yyVAL.str = ""
 		}
-	case 155:
+	case 156:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:987
+//line sql.y:991
 		{
 			yyVAL.str = string(yyDollar[3].bytes)
 		}
-	case 156:
+	case 157:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:991
+//line sql.y:995
 		{
 			yyVAL.str = string(yyDollar[3].bytes)
 		}
-	case 157:
+	case 158:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:996
+//line sql.y:1000
 		{
 			yyVAL.str = ""
 		}
-	case 158:
+	case 159:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1000
+//line sql.y:1004
 		{
 			yyVAL.str = string(yyDollar[2].bytes)
 		}
-	case 159:
+	case 160:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:1005
+//line sql.y:1009
 		{
 			yyVAL.colKeyOpt = colKeyNone
 		}
-	case 160:
+	case 161:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1009
+//line sql.y:1013
 		{
 			yyVAL.colKeyOpt = colKeyPrimary
 		}
-	case 161:
+	case 162:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1013
+//line sql.y:1017
 		{
 			yyVAL.colKeyOpt = colKey
 		}
-	case 162:
+	case 163:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1017
+//line sql.y:1021
 		{
 			yyVAL.colKeyOpt = colKeyUniqueKey
 		}
-	case 163:
+	case 164:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1021
+//line sql.y:1025
 		{
 			yyVAL.colKeyOpt = colKeyUnique
 		}
-	case 164:
+	case 165:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:1026
+//line sql.y:1030
 		{
 			yyVAL.optVal = nil
 		}
-	case 165:
+	case 166:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1030
+//line sql.y:1034
 		{
 			yyVAL.optVal = NewStrVal(yyDollar[2].bytes)
 		}
-	case 166:
+	case 167:
 		yyDollar = yyS[yypt-5 : yypt+1]
-		//line sql.y:1036
+//line sql.y:1040
 		{
+			if yyDollar[1].indexInfo.Name.val == "" && len(yyDollar[3].indexColumns) > 0 {
+				yyDollar[1].indexInfo.Name.val = yyDollar[3].indexColumns[0].Column.val
+			}
 			yyVAL.indexDefinition = &IndexDefinition{Info: yyDollar[1].indexInfo, Columns: yyDollar[3].indexColumns, Options: yyDollar[5].indexOptions}
 		}
-	case 167:
+	case 168:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:1040
+//line sql.y:1047
 		{
+			if yyDollar[1].indexInfo.Name.val == "" && len(yyDollar[3].indexColumns) > 0 {
+				yyDollar[1].indexInfo.Name.val = yyDollar[3].indexColumns[0].Column.val
+			}
 			yyVAL.indexDefinition = &IndexDefinition{Info: yyDollar[1].indexInfo, Columns: yyDollar[3].indexColumns}
 		}
-	case 168:
+	case 169:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1046
+//line sql.y:1056
 		{
 			yyVAL.indexOptions = []*IndexOption{yyDollar[1].indexOption}
 		}
-	case 169:
+	case 170:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1050
+//line sql.y:1060
 		{
 			yyVAL.indexOptions = append(yyVAL.indexOptions, yyDollar[2].indexOption)
 		}
-	case 170:
+	case 171:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1056
+//line sql.y:1066
 		{
 			yyVAL.indexOption = &IndexOption{Name: string(yyDollar[1].bytes), Using: string(yyDollar[2].bytes)}
 		}
-	case 171:
+	case 172:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:1060
+//line sql.y:1070
 		{
 			// should not be string
 			yyVAL.indexOption = &IndexOption{Name: string(yyDollar[1].bytes), Value: NewIntVal(yyDollar[3].bytes)}
 		}
-	case 172:
+	case 173:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1065
+//line sql.y:1075
 		{
 			yyVAL.indexOption = &IndexOption{Name: string(yyDollar[1].bytes), Value: NewStrVal(yyDollar[2].bytes)}
 		}
-	case 173:
+	case 174:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:1071
+//line sql.y:1081
 		{
 			yyVAL.str = ""
 		}
-	case 174:
+	case 175:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1075
+//line sql.y:1085
 		{
 			yyVAL.str = string(yyDollar[1].bytes)
 		}
-	case 175:
+	case 176:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1081
+//line sql.y:1091
 		{
 			yyVAL.indexInfo = &IndexInfo{Type: string(yyDollar[1].bytes) + " " + string(yyDollar[2].bytes), Name: NewColIdent("PRIMARY"), Primary: true, Unique: true}
 		}
-	case 176:
+	case 177:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:1085
+//line sql.y:1095
 		{
 			yyVAL.indexInfo = &IndexInfo{Type: string(yyDollar[1].bytes) + " " + string(yyDollar[2].str), Name: NewColIdent(string(yyDollar[3].bytes)), Spatial: true, Unique: false}
 		}
-	case 177:
+	case 178:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:1089
+//line sql.y:1099
 		{
 			yyVAL.indexInfo = &IndexInfo{Type: string(yyDollar[1].bytes) + " " + string(yyDollar[2].str), Name: NewColIdent(string(yyDollar[3].bytes)), Unique: true}
 		}
-	case 178:
+	case 179:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1093
+//line sql.y:1103
 		{
 			yyVAL.indexInfo = &IndexInfo{Type: string(yyDollar[1].bytes), Name: NewColIdent(string(yyDollar[2].bytes)), Unique: true}
 		}
-	case 179:
+	case 180:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1097
+//line sql.y:1107
 		{
 			yyVAL.indexInfo = &IndexInfo{Type: string(yyDollar[1].str), Name: NewColIdent(string(yyDollar[2].bytes)), Unique: false}
 		}
-	case 180:
+	case 181:
+		yyDollar = yyS[yypt-1 : yypt+1]
+//line sql.y:1111
+		{
+			yyVAL.indexInfo = &IndexInfo{Type: string(yyDollar[1].str), Unique: false}
+		}
+	case 182:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1103
+//line sql.y:1117
 		{
 			yyVAL.str = string(yyDollar[1].bytes)
 		}
-	case 181:
+	case 183:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1107
+//line sql.y:1121
 		{
 			yyVAL.str = string(yyDollar[1].bytes)
 		}
-	case 182:
+	case 184:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1113
+//line sql.y:1127
 		{
 			yyVAL.indexColumns = []*IndexColumn{yyDollar[1].indexColumn}
 		}
-	case 183:
+	case 185:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:1117
+//line sql.y:1131
 		{
 			yyVAL.indexColumns = append(yyVAL.indexColumns, yyDollar[3].indexColumn)
 		}
-	case 184:
+	case 186:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1123
+//line sql.y:1137
 		{
 			yyVAL.indexColumn = &IndexColumn{Column: yyDollar[1].colIdent, Length: yyDollar[2].optVal}
 		}
-	case 185:
+	case 187:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:1128
+//line sql.y:1142
 		{
 			yyVAL.str = ""
 		}
-	case 186:
+	case 188:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1132
+//line sql.y:1146
 		{
 			yyVAL.str = " " + string(yyDollar[1].str)
 		}
-	case 187:
+	case 189:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:1136
+//line sql.y:1150
 		{
 			yyVAL.str = string(yyDollar[1].str) + ", " + string(yyDollar[3].str)
 		}
-	case 188:
+	case 190:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1144
+//line sql.y:1158
 		{
 			yyVAL.str = yyDollar[1].str
 		}
-	case 189:
+	case 191:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1148
+//line sql.y:1162
 		{
 			yyVAL.str = yyDollar[1].str + " " + yyDollar[2].str
 		}
-	case 190:
+	case 192:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:1152
+//line sql.y:1166
 		{
 			yyVAL.str = yyDollar[1].str + "=" + yyDollar[3].str
 		}
-	case 191:
+	case 193:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1158
+//line sql.y:1172
 		{
 			yyVAL.str = yyDollar[1].colIdent.String()
 		}
-	case 192:
+	case 194:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1162
+//line sql.y:1176
 		{
 			yyVAL.str = "'" + string(yyDollar[1].bytes) + "'"
 		}
-	case 193:
+	case 195:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1166
+//line sql.y:1180
 		{
 			yyVAL.str = string(yyDollar[1].bytes)
 		}
-	case 194:
+	case 196:
 		yyDollar = yyS[yypt-6 : yypt+1]
-		//line sql.y:1172
+//line sql.y:1186
 		{
 			yyVAL.statement = &DDL{Action: AlterStr, Table: yyDollar[4].tableName, NewName: yyDollar[4].tableName}
 		}
-	case 195:
+	case 197:
 		yyDollar = yyS[yypt-7 : yypt+1]
-		//line sql.y:1176
+//line sql.y:1190
 		{
 			yyVAL.statement = &DDL{Action: AlterStr, Table: yyDollar[4].tableName, NewName: yyDollar[4].tableName}
 		}
-	case 196:
+	case 198:
 		yyDollar = yyS[yypt-7 : yypt+1]
-		//line sql.y:1180
+//line sql.y:1194
 		{
 			yyVAL.statement = &DDL{Action: AlterStr, Table: yyDollar[4].tableName, NewName: yyDollar[4].tableName}
 		}
-	case 197:
+	case 199:
 		yyDollar = yyS[yypt-12 : yypt+1]
-		//line sql.y:1184
+//line sql.y:1198
 		{
 			yyVAL.statement = &DDL{
 				Action: AddColVindexStr,
@@ -3837,9 +3873,9 @@ yydefault:
 				VindexCols: yyDollar[9].columns,
 			}
 		}
-	case 198:
+	case 200:
 		yyDollar = yyS[yypt-7 : yypt+1]
-		//line sql.y:1197
+//line sql.y:1211
 		{
 			yyVAL.statement = &DDL{
 				Action: DropColVindexStr,
@@ -3849,71 +3885,71 @@ yydefault:
 				},
 			}
 		}
-	case 199:
+	case 201:
 		yyDollar = yyS[yypt-7 : yypt+1]
-		//line sql.y:1207
+//line sql.y:1221
 		{
 			// Change this to a rename statement
 			yyVAL.statement = &DDL{Action: RenameStr, Table: yyDollar[4].tableName, NewName: yyDollar[7].tableName}
 		}
-	case 200:
+	case 202:
 		yyDollar = yyS[yypt-7 : yypt+1]
-		//line sql.y:1212
+//line sql.y:1226
 		{
 			// Rename an index can just be an alter
 			yyVAL.statement = &DDL{Action: AlterStr, Table: yyDollar[4].tableName, NewName: yyDollar[4].tableName}
 		}
-	case 201:
+	case 203:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:1217
+//line sql.y:1231
 		{
 			yyVAL.statement = &DDL{Action: AlterStr, Table: yyDollar[3].tableName.ToViewName(), NewName: yyDollar[3].tableName.ToViewName()}
 		}
-	case 202:
+	case 204:
 		yyDollar = yyS[yypt-5 : yypt+1]
-		//line sql.y:1221
+//line sql.y:1235
 		{
 			yyVAL.statement = &DDL{Action: AlterStr, Table: yyDollar[4].tableName, PartitionSpec: yyDollar[5].partSpec}
 		}
-	case 214:
+	case 216:
 		yyDollar = yyS[yypt-7 : yypt+1]
-		//line sql.y:1240
+//line sql.y:1254
 		{
 			yyVAL.partSpec = &PartitionSpec{Action: ReorganizeStr, Name: yyDollar[3].colIdent, Definitions: yyDollar[6].partDefs}
 		}
-	case 215:
+	case 217:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1246
+//line sql.y:1260
 		{
 			yyVAL.partDefs = []*PartitionDefinition{yyDollar[1].partDef}
 		}
-	case 216:
+	case 218:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:1250
+//line sql.y:1264
 		{
 			yyVAL.partDefs = append(yyDollar[1].partDefs, yyDollar[3].partDef)
 		}
-	case 217:
+	case 219:
 		yyDollar = yyS[yypt-8 : yypt+1]
-		//line sql.y:1256
+//line sql.y:1270
 		{
 			yyVAL.partDef = &PartitionDefinition{Name: yyDollar[2].colIdent, Limit: yyDollar[7].expr}
 		}
-	case 218:
+	case 220:
 		yyDollar = yyS[yypt-8 : yypt+1]
-		//line sql.y:1260
+//line sql.y:1274
 		{
 			yyVAL.partDef = &PartitionDefinition{Name: yyDollar[2].colIdent, Maxvalue: true}
 		}
-	case 219:
+	case 221:
 		yyDollar = yyS[yypt-5 : yypt+1]
-		//line sql.y:1266
+//line sql.y:1280
 		{
 			yyVAL.statement = &DDL{Action: RenameStr, Table: yyDollar[3].tableName, NewName: yyDollar[5].tableName}
 		}
-	case 220:
+	case 222:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:1272
+//line sql.y:1286
 		{
 			var exists bool
 			if yyDollar[3].byt != 0 {
@@ -3921,16 +3957,16 @@ yydefault:
 			}
 			yyVAL.statement = &DDL{Action: DropStr, Table: yyDollar[4].tableName, IfExists: exists}
 		}
-	case 221:
+	case 223:
 		yyDollar = yyS[yypt-6 : yypt+1]
-		//line sql.y:1280
+//line sql.y:1294
 		{
 			// Change this to an alter statement
 			yyVAL.statement = &DDL{Action: AlterStr, Table: yyDollar[5].tableName, NewName: yyDollar[5].tableName}
 		}
-	case 222:
+	case 224:
 		yyDollar = yyS[yypt-5 : yypt+1]
-		//line sql.y:1285
+//line sql.y:1299
 		{
 			var exists bool
 			if yyDollar[3].byt != 0 {
@@ -3938,123 +3974,123 @@ yydefault:
 			}
 			yyVAL.statement = &DDL{Action: DropStr, Table: yyDollar[4].tableName.ToViewName(), IfExists: exists}
 		}
-	case 223:
+	case 225:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:1293
+//line sql.y:1307
 		{
 			yyVAL.statement = &DBDDL{Action: DropStr, DBName: string(yyDollar[4].bytes)}
 		}
-	case 224:
+	case 226:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:1297
+//line sql.y:1311
 		{
 			yyVAL.statement = &DBDDL{Action: DropStr, DBName: string(yyDollar[4].bytes)}
 		}
-	case 225:
+	case 227:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:1303
+//line sql.y:1317
 		{
 			yyVAL.statement = &DDL{Action: TruncateStr, Table: yyDollar[3].tableName}
 		}
-	case 226:
+	case 228:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1307
+//line sql.y:1321
 		{
 			yyVAL.statement = &DDL{Action: TruncateStr, Table: yyDollar[2].tableName}
 		}
-	case 227:
+	case 229:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:1312
+//line sql.y:1326
 		{
 			yyVAL.statement = &DDL{Action: AlterStr, Table: yyDollar[3].tableName, NewName: yyDollar[3].tableName}
 		}
-	case 228:
+	case 230:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:1318
+//line sql.y:1332
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes) + " " + string(yyDollar[3].bytes)}
 		}
-	case 229:
+	case 231:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:1322
+//line sql.y:1336
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes) + " " + string(yyDollar[3].bytes)}
 		}
-	case 230:
+	case 232:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:1326
+//line sql.y:1340
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes) + " " + string(yyDollar[3].bytes)}
 		}
-	case 231:
+	case 233:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:1331
+//line sql.y:1345
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes) + " " + string(yyDollar[3].bytes)}
 		}
-	case 232:
+	case 234:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:1335
+//line sql.y:1349
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes) + " " + string(yyDollar[3].bytes)}
 		}
-	case 233:
+	case 235:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:1339
+//line sql.y:1353
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes) + " " + string(yyDollar[3].bytes)}
 		}
-	case 234:
+	case 236:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:1343
+//line sql.y:1357
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes) + " " + string(yyDollar[3].bytes)}
 		}
-	case 235:
+	case 237:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:1347
+//line sql.y:1361
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes) + " " + string(yyDollar[3].bytes)}
 		}
-	case 236:
+	case 238:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:1351
+//line sql.y:1365
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes)}
 		}
-	case 237:
+	case 239:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:1355
+//line sql.y:1369
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes)}
 		}
-	case 238:
+	case 240:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:1359
+//line sql.y:1373
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes)}
 		}
-	case 239:
+	case 241:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:1363
+//line sql.y:1377
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes)}
 		}
-	case 240:
+	case 242:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:1367
+//line sql.y:1381
 		{
 			yyVAL.statement = &Show{Scope: yyDollar[2].str, Type: string(yyDollar[3].bytes)}
 		}
-	case 241:
+	case 243:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:1371
+//line sql.y:1385
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes)}
 		}
-	case 242:
+	case 244:
 		yyDollar = yyS[yypt-6 : yypt+1]
-		//line sql.y:1375
+//line sql.y:1389
 		{
 			// this is ugly, but I couldn't find a better way for now
 			if yyDollar[4].str == "processlist" {
@@ -4064,598 +4100,598 @@ yydefault:
 				yyVAL.statement = &Show{Type: yyDollar[4].str, ShowTablesOpt: showTablesOpt}
 			}
 		}
-	case 243:
+	case 245:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:1385
+//line sql.y:1399
 		{
 			yyVAL.statement = &Show{Scope: yyDollar[2].str, Type: string(yyDollar[3].bytes)}
 		}
-	case 244:
+	case 246:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1389
+//line sql.y:1403
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes)}
 		}
-	case 245:
+	case 247:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:1393
+//line sql.y:1407
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes), OnTable: yyDollar[4].tableName}
 		}
-	case 246:
+	case 248:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1397
+//line sql.y:1411
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes)}
 		}
-	case 247:
+	case 249:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1401
+//line sql.y:1415
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes)}
 		}
-	case 248:
+	case 250:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1405
+//line sql.y:1419
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes)}
 		}
-	case 249:
+	case 251:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1409
+//line sql.y:1423
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes)}
 		}
-	case 250:
+	case 252:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:1419
+//line sql.y:1433
 		{
 			yyVAL.statement = &Show{Type: string(yyDollar[2].bytes)}
 		}
-	case 251:
+	case 253:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1425
+//line sql.y:1439
 		{
 			yyVAL.str = string(yyDollar[1].bytes)
 		}
-	case 252:
+	case 254:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1429
+//line sql.y:1443
 		{
 			yyVAL.str = string(yyDollar[1].bytes)
 		}
-	case 253:
+	case 255:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:1435
+//line sql.y:1449
 		{
 			yyVAL.str = ""
 		}
-	case 254:
+	case 256:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1439
+//line sql.y:1453
 		{
 			yyVAL.str = "extended "
 		}
-	case 255:
+	case 257:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:1445
+//line sql.y:1459
 		{
 			yyVAL.str = ""
 		}
-	case 256:
+	case 258:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1449
+//line sql.y:1463
 		{
 			yyVAL.str = "full "
 		}
-	case 257:
+	case 259:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:1455
+//line sql.y:1469
 		{
 			yyVAL.str = ""
 		}
-	case 258:
+	case 260:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1459
+//line sql.y:1473
 		{
 			yyVAL.str = yyDollar[2].tableIdent.v
 		}
-	case 259:
+	case 261:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1463
+//line sql.y:1477
 		{
 			yyVAL.str = yyDollar[2].tableIdent.v
 		}
-	case 260:
+	case 262:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:1469
+//line sql.y:1483
 		{
 			yyVAL.showFilter = nil
 		}
-	case 261:
+	case 263:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1473
+//line sql.y:1487
 		{
 			yyVAL.showFilter = &ShowFilter{Like: string(yyDollar[2].bytes)}
 		}
-	case 262:
+	case 264:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1477
+//line sql.y:1491
 		{
 			yyVAL.showFilter = &ShowFilter{Filter: yyDollar[2].expr}
 		}
-	case 263:
+	case 265:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:1483
+//line sql.y:1497
 		{
 			yyVAL.str = ""
 		}
-	case 264:
+	case 266:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1487
+//line sql.y:1501
 		{
 			yyVAL.str = SessionStr
 		}
-	case 265:
+	case 267:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1491
+//line sql.y:1505
 		{
 			yyVAL.str = GlobalStr
 		}
-	case 266:
+	case 268:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1497
+//line sql.y:1511
 		{
 			yyVAL.statement = &Use{DBName: yyDollar[2].tableIdent}
 		}
-	case 267:
+	case 269:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1501
+//line sql.y:1515
 		{
 			yyVAL.statement = &Use{DBName: TableIdent{v: ""}}
 		}
-	case 268:
+	case 270:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1507
+//line sql.y:1521
 		{
 			yyVAL.statement = &Begin{}
 		}
-	case 269:
+	case 271:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1511
+//line sql.y:1525
 		{
 			yyVAL.statement = &Begin{}
 		}
-	case 270:
+	case 272:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1517
+//line sql.y:1531
 		{
 			yyVAL.statement = &Commit{}
 		}
-	case 271:
+	case 273:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1523
+//line sql.y:1537
 		{
 			yyVAL.statement = &Rollback{}
 		}
-	case 272:
+	case 274:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1529
+//line sql.y:1543
 		{
 			yyVAL.statement = &OtherRead{}
 		}
-	case 273:
+	case 275:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1533
+//line sql.y:1547
 		{
 			yyVAL.statement = &OtherRead{}
 		}
-	case 274:
+	case 276:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1537
+//line sql.y:1551
 		{
 			yyVAL.statement = &OtherRead{}
 		}
-	case 275:
+	case 277:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1541
+//line sql.y:1555
 		{
 			yyVAL.statement = &OtherAdmin{}
 		}
-	case 276:
+	case 278:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1545
+//line sql.y:1559
 		{
 			yyVAL.statement = &OtherAdmin{}
 		}
-	case 277:
+	case 279:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:1550
+//line sql.y:1564
 		{
 			setAllowComments(yylex, true)
 		}
-	case 278:
+	case 280:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1554
+//line sql.y:1568
 		{
 			yyVAL.bytes2 = yyDollar[2].bytes2
 			setAllowComments(yylex, false)
 		}
-	case 279:
+	case 281:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:1560
+//line sql.y:1574
 		{
 			yyVAL.bytes2 = nil
 		}
-	case 280:
+	case 282:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1564
+//line sql.y:1578
 		{
 			yyVAL.bytes2 = append(yyDollar[1].bytes2, yyDollar[2].bytes)
 		}
-	case 281:
+	case 283:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1570
+//line sql.y:1584
 		{
 			yyVAL.str = UnionStr
 		}
-	case 282:
+	case 284:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1574
+//line sql.y:1588
 		{
 			yyVAL.str = UnionAllStr
 		}
-	case 283:
+	case 285:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1578
+//line sql.y:1592
 		{
 			yyVAL.str = UnionDistinctStr
 		}
-	case 284:
+	case 286:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:1583
+//line sql.y:1597
 		{
 			yyVAL.str = ""
 		}
-	case 285:
+	case 287:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1587
+//line sql.y:1601
 		{
 			yyVAL.str = SQLNoCacheStr
 		}
-	case 286:
+	case 288:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1591
+//line sql.y:1605
 		{
 			yyVAL.str = SQLCacheStr
 		}
-	case 287:
+	case 289:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:1596
+//line sql.y:1610
 		{
 			yyVAL.str = ""
 		}
-	case 288:
+	case 290:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1600
+//line sql.y:1614
 		{
 			yyVAL.str = DistinctStr
 		}
-	case 289:
+	case 291:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:1605
+//line sql.y:1619
 		{
 			yyVAL.str = ""
 		}
-	case 290:
+	case 292:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1609
+//line sql.y:1623
 		{
 			yyVAL.str = StraightJoinHint
 		}
-	case 291:
+	case 293:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:1614
+//line sql.y:1628
 		{
 			yyVAL.selectExprs = nil
 		}
-	case 292:
+	case 294:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1618
+//line sql.y:1632
 		{
 			yyVAL.selectExprs = yyDollar[1].selectExprs
 		}
-	case 293:
+	case 295:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1624
+//line sql.y:1638
 		{
 			yyVAL.selectExprs = SelectExprs{yyDollar[1].selectExpr}
 		}
-	case 294:
+	case 296:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:1628
+//line sql.y:1642
 		{
 			yyVAL.selectExprs = append(yyVAL.selectExprs, yyDollar[3].selectExpr)
 		}
-	case 295:
+	case 297:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1634
+//line sql.y:1648
 		{
 			yyVAL.selectExpr = &StarExpr{}
 		}
-	case 296:
+	case 298:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1638
+//line sql.y:1652
 		{
 			yyVAL.selectExpr = &AliasedExpr{Expr: yyDollar[1].expr, As: yyDollar[2].colIdent}
 		}
-	case 297:
+	case 299:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:1642
+//line sql.y:1656
 		{
 			yyVAL.selectExpr = &StarExpr{TableName: TableName{Name: yyDollar[1].tableIdent}}
 		}
-	case 298:
+	case 300:
 		yyDollar = yyS[yypt-5 : yypt+1]
-		//line sql.y:1646
+//line sql.y:1660
 		{
 			yyVAL.selectExpr = &StarExpr{TableName: TableName{Qualifier: yyDollar[1].tableIdent, Name: yyDollar[3].tableIdent}}
 		}
-	case 299:
+	case 301:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:1651
+//line sql.y:1665
 		{
 			yyVAL.colIdent = ColIdent{}
 		}
-	case 300:
+	case 302:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1655
+//line sql.y:1669
 		{
 			yyVAL.colIdent = yyDollar[1].colIdent
 		}
-	case 301:
+	case 303:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1659
+//line sql.y:1673
 		{
 			yyVAL.colIdent = yyDollar[2].colIdent
 		}
-	case 303:
+	case 305:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1666
+//line sql.y:1680
 		{
 			yyVAL.colIdent = NewColIdent(string(yyDollar[1].bytes))
 		}
-	case 304:
+	case 306:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:1671
+//line sql.y:1685
 		{
 			yyVAL.tableExprs = TableExprs{&AliasedTableExpr{Expr: TableName{Name: NewTableIdent("dual")}}}
 		}
-	case 305:
+	case 307:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1675
+//line sql.y:1689
 		{
 			yyVAL.tableExprs = yyDollar[2].tableExprs
 		}
-	case 306:
+	case 308:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1681
+//line sql.y:1695
 		{
 			yyVAL.tableExprs = TableExprs{yyDollar[1].tableExpr}
 		}
-	case 307:
+	case 309:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:1685
+//line sql.y:1699
 		{
 			yyVAL.tableExprs = append(yyVAL.tableExprs, yyDollar[3].tableExpr)
 		}
-	case 310:
+	case 312:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1695
+//line sql.y:1709
 		{
 			yyVAL.tableExpr = yyDollar[1].aliasedTableName
 		}
-	case 311:
+	case 313:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:1699
+//line sql.y:1713
 		{
 			yyVAL.tableExpr = &AliasedTableExpr{Expr: yyDollar[1].subquery, As: yyDollar[3].tableIdent}
 		}
-	case 312:
+	case 314:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:1703
+//line sql.y:1717
 		{
 			yyVAL.tableExpr = &ParenTableExpr{Exprs: yyDollar[2].tableExprs}
 		}
-	case 313:
+	case 315:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:1709
+//line sql.y:1723
 		{
 			yyVAL.aliasedTableName = &AliasedTableExpr{Expr: yyDollar[1].tableName, As: yyDollar[2].tableIdent, Hints: yyDollar[3].indexHints}
 		}
-	case 314:
+	case 316:
 		yyDollar = yyS[yypt-7 : yypt+1]
-		//line sql.y:1713
+//line sql.y:1727
 		{
 			yyVAL.aliasedTableName = &AliasedTableExpr{Expr: yyDollar[1].tableName, Partitions: yyDollar[4].partitions, As: yyDollar[6].tableIdent, Hints: yyDollar[7].indexHints}
 		}
-	case 315:
+	case 317:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1719
+//line sql.y:1733
 		{
 			yyVAL.columns = Columns{yyDollar[1].colIdent}
 		}
-	case 316:
+	case 318:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:1723
+//line sql.y:1737
 		{
 			yyVAL.columns = append(yyVAL.columns, yyDollar[3].colIdent)
 		}
-	case 317:
+	case 319:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1729
+//line sql.y:1743
 		{
 			yyVAL.partitions = Partitions{yyDollar[1].colIdent}
 		}
-	case 318:
+	case 320:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:1733
+//line sql.y:1747
 		{
 			yyVAL.partitions = append(yyVAL.partitions, yyDollar[3].colIdent)
 		}
-	case 319:
+	case 321:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:1746
+//line sql.y:1760
 		{
 			yyVAL.tableExpr = &JoinTableExpr{LeftExpr: yyDollar[1].tableExpr, Join: yyDollar[2].str, RightExpr: yyDollar[3].tableExpr, Condition: yyDollar[4].joinCondition}
 		}
-	case 320:
+	case 322:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:1750
+//line sql.y:1764
 		{
 			yyVAL.tableExpr = &JoinTableExpr{LeftExpr: yyDollar[1].tableExpr, Join: yyDollar[2].str, RightExpr: yyDollar[3].tableExpr, Condition: yyDollar[4].joinCondition}
 		}
-	case 321:
+	case 323:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:1754
+//line sql.y:1768
 		{
 			yyVAL.tableExpr = &JoinTableExpr{LeftExpr: yyDollar[1].tableExpr, Join: yyDollar[2].str, RightExpr: yyDollar[3].tableExpr, Condition: yyDollar[4].joinCondition}
 		}
-	case 322:
+	case 324:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:1758
+//line sql.y:1772
 		{
 			yyVAL.tableExpr = &JoinTableExpr{LeftExpr: yyDollar[1].tableExpr, Join: yyDollar[2].str, RightExpr: yyDollar[3].tableExpr}
 		}
-	case 323:
+	case 325:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1764
+//line sql.y:1778
 		{
 			yyVAL.joinCondition = JoinCondition{On: yyDollar[2].expr}
 		}
-	case 324:
+	case 326:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:1766
+//line sql.y:1780
 		{
 			yyVAL.joinCondition = JoinCondition{Using: yyDollar[3].columns}
 		}
-	case 325:
+	case 327:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:1770
+//line sql.y:1784
 		{
 			yyVAL.joinCondition = JoinCondition{}
 		}
-	case 326:
+	case 328:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1772
+//line sql.y:1786
 		{
 			yyVAL.joinCondition = yyDollar[1].joinCondition
 		}
-	case 327:
+	case 329:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:1776
+//line sql.y:1790
 		{
 			yyVAL.joinCondition = JoinCondition{}
 		}
-	case 328:
+	case 330:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1778
+//line sql.y:1792
 		{
 			yyVAL.joinCondition = JoinCondition{On: yyDollar[2].expr}
 		}
-	case 329:
+	case 331:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:1781
+//line sql.y:1795
 		{
 			yyVAL.empty = struct{}{}
 		}
-	case 330:
+	case 332:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1783
+//line sql.y:1797
 		{
 			yyVAL.empty = struct{}{}
 		}
-	case 331:
+	case 333:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:1786
+//line sql.y:1800
 		{
 			yyVAL.tableIdent = NewTableIdent("")
 		}
-	case 332:
+	case 334:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1790
+//line sql.y:1804
 		{
 			yyVAL.tableIdent = yyDollar[1].tableIdent
 		}
-	case 333:
+	case 335:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1794
+//line sql.y:1808
 		{
 			yyVAL.tableIdent = yyDollar[2].tableIdent
 		}
-	case 335:
+	case 337:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1801
+//line sql.y:1815
 		{
 			yyVAL.tableIdent = NewTableIdent(string(yyDollar[1].bytes))
 		}
-	case 336:
+	case 338:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1807
+//line sql.y:1821
 		{
 			yyVAL.str = JoinStr
 		}
-	case 337:
+	case 339:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1811
+//line sql.y:1825
 		{
 			yyVAL.str = JoinStr
 		}
-	case 338:
+	case 340:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1815
+//line sql.y:1829
 		{
 			yyVAL.str = JoinStr
 		}
-	case 339:
+	case 341:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1821
+//line sql.y:1835
 		{
 			yyVAL.str = StraightJoinStr
 		}
-	case 340:
+	case 342:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1827
+//line sql.y:1841
 		{
 			yyVAL.str = LeftJoinStr
 		}
-	case 341:
+	case 343:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:1831
+//line sql.y:1845
 		{
 			yyVAL.str = LeftJoinStr
 		}
-	case 342:
+	case 344:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1835
+//line sql.y:1849
 		{
 			yyVAL.str = RightJoinStr
 		}
-	case 343:
+	case 345:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:1839
+//line sql.y:1853
 		{
 			yyVAL.str = RightJoinStr
 		}
-	case 344:
+	case 346:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1845
+//line sql.y:1859
 		{
 			yyVAL.str = NaturalJoinStr
 		}
-	case 345:
+	case 347:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1849
+//line sql.y:1863
 		{
 			if yyDollar[2].str == LeftJoinStr {
 				yyVAL.str = NaturalLeftJoinStr
@@ -4663,453 +4699,453 @@ yydefault:
 				yyVAL.str = NaturalRightJoinStr
 			}
 		}
-	case 346:
+	case 348:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1859
+//line sql.y:1873
 		{
 			yyVAL.tableName = yyDollar[2].tableName
 		}
-	case 347:
+	case 349:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1863
+//line sql.y:1877
 		{
 			yyVAL.tableName = yyDollar[1].tableName
 		}
-	case 348:
+	case 350:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1869
+//line sql.y:1883
 		{
 			yyVAL.tableName = TableName{Name: yyDollar[1].tableIdent}
 		}
-	case 349:
+	case 351:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:1873
+//line sql.y:1887
 		{
 			yyVAL.tableName = TableName{Qualifier: yyDollar[1].tableIdent, Name: yyDollar[3].tableIdent}
 		}
-	case 350:
+	case 352:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:1878
+//line sql.y:1892
 		{
 			yyVAL.indexHints = nil
 		}
-	case 351:
+	case 353:
 		yyDollar = yyS[yypt-5 : yypt+1]
-		//line sql.y:1882
+//line sql.y:1896
 		{
 			yyVAL.indexHints = &IndexHints{Type: UseStr, Indexes: yyDollar[4].columns}
 		}
-	case 352:
+	case 354:
 		yyDollar = yyS[yypt-5 : yypt+1]
-		//line sql.y:1886
+//line sql.y:1900
 		{
 			yyVAL.indexHints = &IndexHints{Type: IgnoreStr, Indexes: yyDollar[4].columns}
 		}
-	case 353:
+	case 355:
 		yyDollar = yyS[yypt-5 : yypt+1]
-		//line sql.y:1890
+//line sql.y:1904
 		{
 			yyVAL.indexHints = &IndexHints{Type: ForceStr, Indexes: yyDollar[4].columns}
 		}
-	case 354:
+	case 356:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:1895
+//line sql.y:1909
 		{
 			yyVAL.expr = nil
 		}
-	case 355:
+	case 357:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1899
+//line sql.y:1913
 		{
 			yyVAL.expr = yyDollar[2].expr
 		}
-	case 356:
+	case 358:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1905
+//line sql.y:1919
 		{
 			yyVAL.expr = yyDollar[1].expr
 		}
-	case 357:
+	case 359:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:1909
+//line sql.y:1923
 		{
 			yyVAL.expr = &AndExpr{Left: yyDollar[1].expr, Right: yyDollar[3].expr}
 		}
-	case 358:
+	case 360:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:1913
+//line sql.y:1927
 		{
 			yyVAL.expr = &OrExpr{Left: yyDollar[1].expr, Right: yyDollar[3].expr}
 		}
-	case 359:
+	case 361:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1917
+//line sql.y:1931
 		{
 			yyVAL.expr = &NotExpr{Expr: yyDollar[2].expr}
 		}
-	case 360:
+	case 362:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:1921
+//line sql.y:1935
 		{
 			yyVAL.expr = &IsExpr{Operator: yyDollar[3].str, Expr: yyDollar[1].expr}
 		}
-	case 361:
+	case 363:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1925
+//line sql.y:1939
 		{
 			yyVAL.expr = yyDollar[1].expr
 		}
-	case 362:
+	case 364:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1929
+//line sql.y:1943
 		{
 			yyVAL.expr = &Default{ColName: yyDollar[2].str}
 		}
-	case 363:
+	case 365:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:1935
+//line sql.y:1949
 		{
 			yyVAL.str = ""
 		}
-	case 364:
+	case 366:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:1939
+//line sql.y:1953
 		{
 			yyVAL.str = string(yyDollar[2].bytes)
 		}
-	case 365:
+	case 367:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1945
+//line sql.y:1959
 		{
 			yyVAL.boolVal = BoolVal(true)
 		}
-	case 366:
+	case 368:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1949
+//line sql.y:1963
 		{
 			yyVAL.boolVal = BoolVal(false)
 		}
-	case 367:
+	case 369:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:1955
+//line sql.y:1969
 		{
 			yyVAL.expr = &ComparisonExpr{Left: yyDollar[1].expr, Operator: yyDollar[2].str, Right: yyDollar[3].expr}
 		}
-	case 368:
+	case 370:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:1959
+//line sql.y:1973
 		{
 			yyVAL.expr = &ComparisonExpr{Left: yyDollar[1].expr, Operator: InStr, Right: yyDollar[3].colTuple}
 		}
-	case 369:
+	case 371:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:1963
+//line sql.y:1977
 		{
 			yyVAL.expr = &ComparisonExpr{Left: yyDollar[1].expr, Operator: NotInStr, Right: yyDollar[4].colTuple}
 		}
-	case 370:
+	case 372:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:1967
+//line sql.y:1981
 		{
 			yyVAL.expr = &ComparisonExpr{Left: yyDollar[1].expr, Operator: LikeStr, Right: yyDollar[3].expr, Escape: yyDollar[4].expr}
 		}
-	case 371:
+	case 373:
 		yyDollar = yyS[yypt-5 : yypt+1]
-		//line sql.y:1971
+//line sql.y:1985
 		{
 			yyVAL.expr = &ComparisonExpr{Left: yyDollar[1].expr, Operator: NotLikeStr, Right: yyDollar[4].expr, Escape: yyDollar[5].expr}
 		}
-	case 372:
+	case 374:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:1975
+//line sql.y:1989
 		{
 			yyVAL.expr = &ComparisonExpr{Left: yyDollar[1].expr, Operator: RegexpStr, Right: yyDollar[3].expr}
 		}
-	case 373:
+	case 375:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:1979
+//line sql.y:1993
 		{
 			yyVAL.expr = &ComparisonExpr{Left: yyDollar[1].expr, Operator: NotRegexpStr, Right: yyDollar[4].expr}
 		}
-	case 374:
+	case 376:
 		yyDollar = yyS[yypt-5 : yypt+1]
-		//line sql.y:1983
+//line sql.y:1997
 		{
 			yyVAL.expr = &RangeCond{Left: yyDollar[1].expr, Operator: BetweenStr, From: yyDollar[3].expr, To: yyDollar[5].expr}
 		}
-	case 375:
+	case 377:
 		yyDollar = yyS[yypt-6 : yypt+1]
-		//line sql.y:1987
+//line sql.y:2001
 		{
 			yyVAL.expr = &RangeCond{Left: yyDollar[1].expr, Operator: NotBetweenStr, From: yyDollar[4].expr, To: yyDollar[6].expr}
 		}
-	case 376:
+	case 378:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:1991
+//line sql.y:2005
 		{
 			yyVAL.expr = &ExistsExpr{Subquery: yyDollar[2].subquery}
 		}
-	case 377:
+	case 379:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:1997
+//line sql.y:2011
 		{
 			yyVAL.str = IsNullStr
 		}
-	case 378:
+	case 380:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:2001
+//line sql.y:2015
 		{
 			yyVAL.str = IsNotNullStr
 		}
-	case 379:
+	case 381:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2005
+//line sql.y:2019
 		{
 			yyVAL.str = IsTrueStr
 		}
-	case 380:
+	case 382:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:2009
+//line sql.y:2023
 		{
 			yyVAL.str = IsNotTrueStr
 		}
-	case 381:
+	case 383:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2013
+//line sql.y:2027
 		{
 			yyVAL.str = IsFalseStr
 		}
-	case 382:
+	case 384:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:2017
+//line sql.y:2031
 		{
 			yyVAL.str = IsNotFalseStr
 		}
-	case 383:
+	case 385:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2023
+//line sql.y:2037
 		{
 			yyVAL.str = EqualStr
 		}
-	case 384:
+	case 386:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2027
+//line sql.y:2041
 		{
 			yyVAL.str = LessThanStr
 		}
-	case 385:
+	case 387:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2031
+//line sql.y:2045
 		{
 			yyVAL.str = GreaterThanStr
 		}
-	case 386:
+	case 388:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2035
+//line sql.y:2049
 		{
 			yyVAL.str = LessEqualStr
 		}
-	case 387:
+	case 389:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2039
+//line sql.y:2053
 		{
 			yyVAL.str = GreaterEqualStr
 		}
-	case 388:
+	case 390:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2043
+//line sql.y:2057
 		{
 			yyVAL.str = NotEqualStr
 		}
-	case 389:
+	case 391:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2047
+//line sql.y:2061
 		{
 			yyVAL.str = NullSafeEqualStr
 		}
-	case 390:
+	case 392:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:2052
+//line sql.y:2066
 		{
 			yyVAL.expr = nil
 		}
-	case 391:
+	case 393:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:2056
+//line sql.y:2070
 		{
 			yyVAL.expr = yyDollar[2].expr
 		}
-	case 392:
+	case 394:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2062
+//line sql.y:2076
 		{
 			yyVAL.colTuple = yyDollar[1].valTuple
 		}
-	case 393:
+	case 395:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2066
+//line sql.y:2080
 		{
 			yyVAL.colTuple = yyDollar[1].subquery
 		}
-	case 394:
+	case 396:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2070
+//line sql.y:2084
 		{
 			yyVAL.colTuple = ListArg(yyDollar[1].bytes)
 		}
-	case 395:
+	case 397:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:2076
+//line sql.y:2090
 		{
 			yyVAL.subquery = &Subquery{yyDollar[2].selStmt}
 		}
-	case 396:
+	case 398:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2082
+//line sql.y:2096
 		{
 			yyVAL.exprs = Exprs{yyDollar[1].expr}
 		}
-	case 397:
+	case 399:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:2086
+//line sql.y:2100
 		{
 			yyVAL.exprs = append(yyDollar[1].exprs, yyDollar[3].expr)
 		}
-	case 398:
+	case 400:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2092
+//line sql.y:2106
 		{
 			yyVAL.expr = yyDollar[1].expr
 		}
-	case 399:
+	case 401:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2096
+//line sql.y:2110
 		{
 			yyVAL.expr = yyDollar[1].boolVal
 		}
-	case 400:
+	case 402:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2100
+//line sql.y:2114
 		{
 			yyVAL.expr = yyDollar[1].colName
 		}
-	case 401:
+	case 403:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2104
+//line sql.y:2118
 		{
 			yyVAL.expr = yyDollar[1].expr
 		}
-	case 402:
+	case 404:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2108
+//line sql.y:2122
 		{
 			yyVAL.expr = yyDollar[1].subquery
 		}
-	case 403:
+	case 405:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:2112
+//line sql.y:2126
 		{
 			yyVAL.expr = &BinaryExpr{Left: yyDollar[1].expr, Operator: BitAndStr, Right: yyDollar[3].expr}
 		}
-	case 404:
+	case 406:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:2116
+//line sql.y:2130
 		{
 			yyVAL.expr = &BinaryExpr{Left: yyDollar[1].expr, Operator: BitOrStr, Right: yyDollar[3].expr}
 		}
-	case 405:
+	case 407:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:2120
+//line sql.y:2134
 		{
 			yyVAL.expr = &BinaryExpr{Left: yyDollar[1].expr, Operator: BitXorStr, Right: yyDollar[3].expr}
 		}
-	case 406:
+	case 408:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:2124
+//line sql.y:2138
 		{
 			yyVAL.expr = &BinaryExpr{Left: yyDollar[1].expr, Operator: PlusStr, Right: yyDollar[3].expr}
 		}
-	case 407:
+	case 409:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:2128
+//line sql.y:2142
 		{
 			yyVAL.expr = &BinaryExpr{Left: yyDollar[1].expr, Operator: MinusStr, Right: yyDollar[3].expr}
 		}
-	case 408:
+	case 410:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:2132
+//line sql.y:2146
 		{
 			yyVAL.expr = &BinaryExpr{Left: yyDollar[1].expr, Operator: MultStr, Right: yyDollar[3].expr}
 		}
-	case 409:
+	case 411:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:2136
+//line sql.y:2150
 		{
 			yyVAL.expr = &BinaryExpr{Left: yyDollar[1].expr, Operator: DivStr, Right: yyDollar[3].expr}
 		}
-	case 410:
+	case 412:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:2140
+//line sql.y:2154
 		{
 			yyVAL.expr = &BinaryExpr{Left: yyDollar[1].expr, Operator: IntDivStr, Right: yyDollar[3].expr}
 		}
-	case 411:
+	case 413:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:2144
+//line sql.y:2158
 		{
 			yyVAL.expr = &BinaryExpr{Left: yyDollar[1].expr, Operator: ModStr, Right: yyDollar[3].expr}
 		}
-	case 412:
+	case 414:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:2148
+//line sql.y:2162
 		{
 			yyVAL.expr = &BinaryExpr{Left: yyDollar[1].expr, Operator: ModStr, Right: yyDollar[3].expr}
 		}
-	case 413:
+	case 415:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:2152
+//line sql.y:2166
 		{
 			yyVAL.expr = &BinaryExpr{Left: yyDollar[1].expr, Operator: ShiftLeftStr, Right: yyDollar[3].expr}
 		}
-	case 414:
+	case 416:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:2156
+//line sql.y:2170
 		{
 			yyVAL.expr = &BinaryExpr{Left: yyDollar[1].expr, Operator: ShiftRightStr, Right: yyDollar[3].expr}
 		}
-	case 415:
+	case 417:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:2160
+//line sql.y:2174
 		{
 			yyVAL.expr = &BinaryExpr{Left: yyDollar[1].colName, Operator: JSONExtractOp, Right: yyDollar[3].expr}
 		}
-	case 416:
+	case 418:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:2164
+//line sql.y:2178
 		{
 			yyVAL.expr = &BinaryExpr{Left: yyDollar[1].colName, Operator: JSONUnquoteExtractOp, Right: yyDollar[3].expr}
 		}
-	case 417:
+	case 419:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:2168
+//line sql.y:2182
 		{
 			yyVAL.expr = &CollateExpr{Expr: yyDollar[1].expr, Charset: yyDollar[3].str}
 		}
-	case 418:
+	case 420:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:2172
+//line sql.y:2186
 		{
 			yyVAL.expr = &UnaryExpr{Operator: BinaryStr, Expr: yyDollar[2].expr}
 		}
-	case 419:
+	case 421:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:2176
+//line sql.y:2190
 		{
 			yyVAL.expr = &UnaryExpr{Operator: UBinaryStr, Expr: yyDollar[2].expr}
 		}
-	case 420:
+	case 422:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:2180
+//line sql.y:2194
 		{
 			if num, ok := yyDollar[2].expr.(*SQLVal); ok && num.Type == IntVal {
 				yyVAL.expr = num
@@ -5117,9 +5153,9 @@ yydefault:
 				yyVAL.expr = &UnaryExpr{Operator: UPlusStr, Expr: yyDollar[2].expr}
 			}
 		}
-	case 421:
+	case 423:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:2188
+//line sql.y:2202
 		{
 			if num, ok := yyDollar[2].expr.(*SQLVal); ok && num.Type == IntVal {
 				// Handle double negative
@@ -5133,21 +5169,21 @@ yydefault:
 				yyVAL.expr = &UnaryExpr{Operator: UMinusStr, Expr: yyDollar[2].expr}
 			}
 		}
-	case 422:
+	case 424:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:2202
+//line sql.y:2216
 		{
 			yyVAL.expr = &UnaryExpr{Operator: TildaStr, Expr: yyDollar[2].expr}
 		}
-	case 423:
+	case 425:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:2206
+//line sql.y:2220
 		{
 			yyVAL.expr = &UnaryExpr{Operator: BangStr, Expr: yyDollar[2].expr}
 		}
-	case 424:
+	case 426:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:2210
+//line sql.y:2224
 		{
 			// This rule prevents the usage of INTERVAL
 			// as a function. If support is needed for that,
@@ -5155,431 +5191,431 @@ yydefault:
 			// will be non-trivial because of grammar conflicts.
 			yyVAL.expr = &IntervalExpr{Expr: yyDollar[2].expr, Unit: yyDollar[3].colIdent.String()}
 		}
-	case 429:
+	case 431:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:2228
+//line sql.y:2242
 		{
 			yyVAL.expr = &FuncExpr{Name: yyDollar[1].colIdent, Exprs: yyDollar[3].selectExprs}
 		}
-	case 430:
+	case 432:
 		yyDollar = yyS[yypt-5 : yypt+1]
-		//line sql.y:2232
+//line sql.y:2246
 		{
 			yyVAL.expr = &FuncExpr{Name: yyDollar[1].colIdent, Distinct: true, Exprs: yyDollar[4].selectExprs}
 		}
-	case 431:
+	case 433:
 		yyDollar = yyS[yypt-6 : yypt+1]
-		//line sql.y:2236
+//line sql.y:2250
 		{
 			yyVAL.expr = &FuncExpr{Qualifier: yyDollar[1].tableIdent, Name: yyDollar[3].colIdent, Exprs: yyDollar[5].selectExprs}
 		}
-	case 432:
+	case 434:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:2246
+//line sql.y:2260
 		{
 			yyVAL.expr = &FuncExpr{Name: NewColIdent("left"), Exprs: yyDollar[3].selectExprs}
 		}
-	case 433:
+	case 435:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:2250
+//line sql.y:2264
 		{
 			yyVAL.expr = &FuncExpr{Name: NewColIdent("right"), Exprs: yyDollar[3].selectExprs}
 		}
-	case 434:
+	case 436:
 		yyDollar = yyS[yypt-6 : yypt+1]
-		//line sql.y:2254
+//line sql.y:2268
 		{
 			yyVAL.expr = &ConvertExpr{Expr: yyDollar[3].expr, Type: yyDollar[5].convertType}
 		}
-	case 435:
+	case 437:
 		yyDollar = yyS[yypt-6 : yypt+1]
-		//line sql.y:2258
+//line sql.y:2272
 		{
 			yyVAL.expr = &ConvertExpr{Expr: yyDollar[3].expr, Type: yyDollar[5].convertType}
 		}
-	case 436:
+	case 438:
 		yyDollar = yyS[yypt-6 : yypt+1]
-		//line sql.y:2262
+//line sql.y:2276
 		{
 			yyVAL.expr = &ConvertUsingExpr{Expr: yyDollar[3].expr, Type: yyDollar[5].str}
 		}
-	case 437:
+	case 439:
 		yyDollar = yyS[yypt-6 : yypt+1]
-		//line sql.y:2266
+//line sql.y:2280
 		{
 			yyVAL.expr = &SubstrExpr{Name: yyDollar[3].colName, From: yyDollar[5].expr, To: nil}
 		}
-	case 438:
+	case 440:
 		yyDollar = yyS[yypt-8 : yypt+1]
-		//line sql.y:2270
+//line sql.y:2284
 		{
 			yyVAL.expr = &SubstrExpr{Name: yyDollar[3].colName, From: yyDollar[5].expr, To: yyDollar[7].expr}
 		}
-	case 439:
+	case 441:
 		yyDollar = yyS[yypt-8 : yypt+1]
-		//line sql.y:2274
+//line sql.y:2288
 		{
 			yyVAL.expr = &SubstrExpr{Name: yyDollar[3].colName, From: yyDollar[5].expr, To: yyDollar[7].expr}
 		}
-	case 440:
+	case 442:
 		yyDollar = yyS[yypt-6 : yypt+1]
-		//line sql.y:2278
+//line sql.y:2292
 		{
 			yyVAL.expr = &SubstrExpr{Name: yyDollar[3].colName, From: yyDollar[5].expr, To: nil}
 		}
-	case 441:
+	case 443:
 		yyDollar = yyS[yypt-8 : yypt+1]
-		//line sql.y:2282
+//line sql.y:2296
 		{
 			yyVAL.expr = &SubstrExpr{Name: yyDollar[3].colName, From: yyDollar[5].expr, To: yyDollar[7].expr}
 		}
-	case 442:
+	case 444:
 		yyDollar = yyS[yypt-8 : yypt+1]
-		//line sql.y:2286
+//line sql.y:2300
 		{
 			yyVAL.expr = &SubstrExpr{Name: yyDollar[3].colName, From: yyDollar[5].expr, To: yyDollar[7].expr}
 		}
-	case 443:
+	case 445:
 		yyDollar = yyS[yypt-9 : yypt+1]
-		//line sql.y:2290
+//line sql.y:2304
 		{
 			yyVAL.expr = &MatchExpr{Columns: yyDollar[3].selectExprs, Expr: yyDollar[7].expr, Option: yyDollar[8].str}
 		}
-	case 444:
+	case 446:
 		yyDollar = yyS[yypt-7 : yypt+1]
-		//line sql.y:2294
+//line sql.y:2308
 		{
 			yyVAL.expr = &GroupConcatExpr{Distinct: yyDollar[3].str, Exprs: yyDollar[4].selectExprs, OrderBy: yyDollar[5].orderBy, Separator: yyDollar[6].str}
 		}
-	case 445:
+	case 447:
 		yyDollar = yyS[yypt-5 : yypt+1]
-		//line sql.y:2298
+//line sql.y:2312
 		{
 			yyVAL.expr = &CaseExpr{Expr: yyDollar[2].expr, Whens: yyDollar[3].whens, Else: yyDollar[4].expr}
 		}
-	case 446:
+	case 448:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:2302
+//line sql.y:2316
 		{
 			yyVAL.expr = &ValuesFuncExpr{Name: yyDollar[3].colName}
 		}
-	case 447:
+	case 449:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:2312
+//line sql.y:2326
 		{
 			yyVAL.expr = &FuncExpr{Name: NewColIdent("current_timestamp")}
 		}
-	case 448:
+	case 450:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:2316
+//line sql.y:2330
 		{
 			yyVAL.expr = &FuncExpr{Name: NewColIdent("utc_timestamp")}
 		}
-	case 449:
+	case 451:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:2320
+//line sql.y:2334
 		{
 			yyVAL.expr = &FuncExpr{Name: NewColIdent("utc_time")}
 		}
-	case 450:
+	case 452:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:2324
+//line sql.y:2338
 		{
 			yyVAL.expr = &FuncExpr{Name: NewColIdent("utc_date")}
 		}
-	case 451:
+	case 453:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:2329
+//line sql.y:2343
 		{
 			yyVAL.expr = &FuncExpr{Name: NewColIdent("localtime")}
 		}
-	case 452:
+	case 454:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:2334
+//line sql.y:2348
 		{
 			yyVAL.expr = &FuncExpr{Name: NewColIdent("localtimestamp")}
 		}
-	case 453:
+	case 455:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:2339
+//line sql.y:2353
 		{
 			yyVAL.expr = &FuncExpr{Name: NewColIdent("current_date")}
 		}
-	case 454:
+	case 456:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:2344
+//line sql.y:2358
 		{
 			yyVAL.expr = &FuncExpr{Name: NewColIdent("current_time")}
 		}
-	case 457:
+	case 459:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:2358
+//line sql.y:2372
 		{
 			yyVAL.expr = &FuncExpr{Name: NewColIdent("if"), Exprs: yyDollar[3].selectExprs}
 		}
-	case 458:
+	case 460:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:2362
+//line sql.y:2376
 		{
 			yyVAL.expr = &FuncExpr{Name: NewColIdent("database"), Exprs: yyDollar[3].selectExprs}
 		}
-	case 459:
+	case 461:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:2366
+//line sql.y:2380
 		{
 			yyVAL.expr = &FuncExpr{Name: NewColIdent("mod"), Exprs: yyDollar[3].selectExprs}
 		}
-	case 460:
+	case 462:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:2370
+//line sql.y:2384
 		{
 			yyVAL.expr = &FuncExpr{Name: NewColIdent("replace"), Exprs: yyDollar[3].selectExprs}
 		}
-	case 461:
+	case 463:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:2376
+//line sql.y:2390
 		{
 			yyVAL.str = ""
 		}
-	case 462:
+	case 464:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:2380
+//line sql.y:2394
 		{
 			yyVAL.str = BooleanModeStr
 		}
-	case 463:
+	case 465:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:2384
+//line sql.y:2398
 		{
 			yyVAL.str = NaturalLanguageModeStr
 		}
-	case 464:
+	case 466:
 		yyDollar = yyS[yypt-7 : yypt+1]
-		//line sql.y:2388
+//line sql.y:2402
 		{
 			yyVAL.str = NaturalLanguageModeWithQueryExpansionStr
 		}
-	case 465:
+	case 467:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:2392
+//line sql.y:2406
 		{
 			yyVAL.str = QueryExpansionStr
 		}
-	case 466:
+	case 468:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2398
+//line sql.y:2412
 		{
 			yyVAL.str = string(yyDollar[1].bytes)
 		}
-	case 467:
+	case 469:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2402
+//line sql.y:2416
 		{
 			yyVAL.str = string(yyDollar[1].bytes)
 		}
-	case 468:
+	case 470:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:2408
+//line sql.y:2422
 		{
 			yyVAL.convertType = &ConvertType{Type: string(yyDollar[1].bytes), Length: yyDollar[2].optVal}
 		}
-	case 469:
+	case 471:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:2412
+//line sql.y:2426
 		{
 			yyVAL.convertType = &ConvertType{Type: string(yyDollar[1].bytes), Length: yyDollar[2].optVal, Charset: yyDollar[3].str, Operator: CharacterSetStr}
 		}
-	case 470:
+	case 472:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:2416
+//line sql.y:2430
 		{
 			yyVAL.convertType = &ConvertType{Type: string(yyDollar[1].bytes), Length: yyDollar[2].optVal, Charset: string(yyDollar[3].bytes)}
 		}
-	case 471:
+	case 473:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2420
+//line sql.y:2434
 		{
 			yyVAL.convertType = &ConvertType{Type: string(yyDollar[1].bytes)}
 		}
-	case 472:
+	case 474:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:2424
+//line sql.y:2438
 		{
 			yyVAL.convertType = &ConvertType{Type: string(yyDollar[1].bytes), Length: yyDollar[2].optVal}
 		}
-	case 473:
+	case 475:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:2428
+//line sql.y:2442
 		{
 			yyVAL.convertType = &ConvertType{Type: string(yyDollar[1].bytes)}
 			yyVAL.convertType.Length = yyDollar[2].LengthScaleOption.Length
 			yyVAL.convertType.Scale = yyDollar[2].LengthScaleOption.Scale
 		}
-	case 474:
+	case 476:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2434
+//line sql.y:2448
 		{
 			yyVAL.convertType = &ConvertType{Type: string(yyDollar[1].bytes)}
 		}
-	case 475:
+	case 477:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:2438
+//line sql.y:2452
 		{
 			yyVAL.convertType = &ConvertType{Type: string(yyDollar[1].bytes), Length: yyDollar[2].optVal}
 		}
-	case 476:
+	case 478:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2442
+//line sql.y:2456
 		{
 			yyVAL.convertType = &ConvertType{Type: string(yyDollar[1].bytes)}
 		}
-	case 477:
+	case 479:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:2446
+//line sql.y:2460
 		{
 			yyVAL.convertType = &ConvertType{Type: string(yyDollar[1].bytes)}
 		}
-	case 478:
+	case 480:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:2450
+//line sql.y:2464
 		{
 			yyVAL.convertType = &ConvertType{Type: string(yyDollar[1].bytes), Length: yyDollar[2].optVal}
 		}
-	case 479:
+	case 481:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2454
+//line sql.y:2468
 		{
 			yyVAL.convertType = &ConvertType{Type: string(yyDollar[1].bytes)}
 		}
-	case 480:
+	case 482:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:2458
+//line sql.y:2472
 		{
 			yyVAL.convertType = &ConvertType{Type: string(yyDollar[1].bytes)}
 		}
-	case 481:
+	case 483:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:2463
+//line sql.y:2477
 		{
 			yyVAL.expr = nil
 		}
-	case 482:
+	case 484:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2467
+//line sql.y:2481
 		{
 			yyVAL.expr = yyDollar[1].expr
 		}
-	case 483:
+	case 485:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:2472
+//line sql.y:2486
 		{
 			yyVAL.str = string("")
 		}
-	case 484:
+	case 486:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:2476
+//line sql.y:2490
 		{
 			yyVAL.str = " separator '" + string(yyDollar[2].bytes) + "'"
 		}
-	case 485:
+	case 487:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2482
+//line sql.y:2496
 		{
 			yyVAL.whens = []*When{yyDollar[1].when}
 		}
-	case 486:
+	case 488:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:2486
+//line sql.y:2500
 		{
 			yyVAL.whens = append(yyDollar[1].whens, yyDollar[2].when)
 		}
-	case 487:
+	case 489:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:2492
+//line sql.y:2506
 		{
 			yyVAL.when = &When{Cond: yyDollar[2].expr, Val: yyDollar[4].expr}
 		}
-	case 488:
+	case 490:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:2497
+//line sql.y:2511
 		{
 			yyVAL.expr = nil
 		}
-	case 489:
+	case 491:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:2501
+//line sql.y:2515
 		{
 			yyVAL.expr = yyDollar[2].expr
 		}
-	case 490:
+	case 492:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2507
+//line sql.y:2521
 		{
 			yyVAL.colName = &ColName{Name: yyDollar[1].colIdent}
 		}
-	case 491:
+	case 493:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:2511
+//line sql.y:2525
 		{
 			yyVAL.colName = &ColName{Qualifier: TableName{Name: yyDollar[1].tableIdent}, Name: yyDollar[3].colIdent}
 		}
-	case 492:
+	case 494:
 		yyDollar = yyS[yypt-5 : yypt+1]
-		//line sql.y:2515
+//line sql.y:2529
 		{
 			yyVAL.colName = &ColName{Qualifier: TableName{Qualifier: yyDollar[1].tableIdent, Name: yyDollar[3].tableIdent}, Name: yyDollar[5].colIdent}
 		}
-	case 493:
+	case 495:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2521
+//line sql.y:2535
 		{
 			yyVAL.expr = NewStrVal(yyDollar[1].bytes)
 		}
-	case 494:
+	case 496:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2525
+//line sql.y:2539
 		{
 			yyVAL.expr = NewHexVal(yyDollar[1].bytes)
 		}
-	case 495:
+	case 497:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2529
+//line sql.y:2543
 		{
 			yyVAL.expr = NewBitVal(yyDollar[1].bytes)
 		}
-	case 496:
+	case 498:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2533
+//line sql.y:2547
 		{
 			yyVAL.expr = NewIntVal(yyDollar[1].bytes)
 		}
-	case 497:
+	case 499:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2537
+//line sql.y:2551
 		{
 			yyVAL.expr = NewFloatVal(yyDollar[1].bytes)
 		}
-	case 498:
+	case 500:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2541
+//line sql.y:2555
 		{
 			yyVAL.expr = NewHexNum(yyDollar[1].bytes)
 		}
-	case 499:
+	case 501:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2545
+//line sql.y:2559
 		{
 			yyVAL.expr = NewValArg(yyDollar[1].bytes)
 		}
-	case 500:
+	case 502:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2549
+//line sql.y:2563
 		{
 			yyVAL.expr = &NullVal{}
 		}
-	case 501:
+	case 503:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2555
+//line sql.y:2569
 		{
 			// TODO(sougou): Deprecate this construct.
 			if yyDollar[1].colIdent.Lowered() != "value" {
@@ -5588,239 +5624,239 @@ yydefault:
 			}
 			yyVAL.expr = NewIntVal([]byte("1"))
 		}
-	case 502:
+	case 504:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:2564
+//line sql.y:2578
 		{
 			yyVAL.expr = NewIntVal(yyDollar[1].bytes)
 		}
-	case 503:
+	case 505:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:2568
+//line sql.y:2582
 		{
 			yyVAL.expr = NewValArg(yyDollar[1].bytes)
 		}
-	case 504:
+	case 506:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:2573
+//line sql.y:2587
 		{
 			yyVAL.exprs = nil
 		}
-	case 505:
+	case 507:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:2577
+//line sql.y:2591
 		{
 			yyVAL.exprs = yyDollar[3].exprs
 		}
-	case 506:
+	case 508:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:2582
+//line sql.y:2596
 		{
 			yyVAL.expr = nil
 		}
-	case 507:
+	case 509:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:2586
+//line sql.y:2600
 		{
 			yyVAL.expr = yyDollar[2].expr
 		}
-	case 508:
+	case 510:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:2591
+//line sql.y:2605
 		{
 			yyVAL.orderBy = nil
 		}
-	case 509:
+	case 511:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:2595
+//line sql.y:2609
 		{
 			yyVAL.orderBy = yyDollar[3].orderBy
 		}
-	case 510:
+	case 512:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2601
+//line sql.y:2615
 		{
 			yyVAL.orderBy = OrderBy{yyDollar[1].order}
 		}
-	case 511:
+	case 513:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:2605
+//line sql.y:2619
 		{
 			yyVAL.orderBy = append(yyDollar[1].orderBy, yyDollar[3].order)
 		}
-	case 512:
+	case 514:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:2611
+//line sql.y:2625
 		{
 			yyVAL.order = &Order{Expr: yyDollar[1].expr, Direction: yyDollar[2].str}
 		}
-	case 513:
+	case 515:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:2616
+//line sql.y:2630
 		{
 			yyVAL.str = AscScr
 		}
-	case 514:
+	case 516:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2620
+//line sql.y:2634
 		{
 			yyVAL.str = AscScr
 		}
-	case 515:
+	case 517:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2624
+//line sql.y:2638
 		{
 			yyVAL.str = DescScr
 		}
-	case 516:
+	case 518:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:2629
+//line sql.y:2643
 		{
 			yyVAL.limit = nil
 		}
-	case 517:
+	case 519:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:2633
+//line sql.y:2647
 		{
 			yyVAL.limit = &Limit{Rowcount: yyDollar[2].expr}
 		}
-	case 518:
+	case 520:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:2637
+//line sql.y:2651
 		{
 			yyVAL.limit = &Limit{Offset: yyDollar[2].expr, Rowcount: yyDollar[4].expr}
 		}
-	case 519:
+	case 521:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:2641
+//line sql.y:2655
 		{
 			yyVAL.limit = &Limit{Offset: yyDollar[4].expr, Rowcount: yyDollar[2].expr}
 		}
-	case 520:
+	case 522:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:2646
+//line sql.y:2660
 		{
 			yyVAL.str = ""
 		}
-	case 521:
+	case 523:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:2650
+//line sql.y:2664
 		{
 			yyVAL.str = ForUpdateStr
 		}
-	case 522:
+	case 524:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:2654
+//line sql.y:2668
 		{
 			yyVAL.str = ShareModeStr
 		}
-	case 523:
+	case 525:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:2667
+//line sql.y:2681
 		{
 			yyVAL.ins = &Insert{Rows: yyDollar[2].values}
 		}
-	case 524:
+	case 526:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2671
+//line sql.y:2685
 		{
 			yyVAL.ins = &Insert{Rows: yyDollar[1].selStmt}
 		}
-	case 525:
+	case 527:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:2675
+//line sql.y:2689
 		{
 			// Drop the redundant parenthesis.
 			yyVAL.ins = &Insert{Rows: yyDollar[2].selStmt}
 		}
-	case 526:
+	case 528:
 		yyDollar = yyS[yypt-5 : yypt+1]
-		//line sql.y:2680
+//line sql.y:2694
 		{
 			yyVAL.ins = &Insert{Columns: yyDollar[2].columns, Rows: yyDollar[5].values}
 		}
-	case 527:
+	case 529:
 		yyDollar = yyS[yypt-4 : yypt+1]
-		//line sql.y:2684
+//line sql.y:2698
 		{
 			yyVAL.ins = &Insert{Columns: yyDollar[2].columns, Rows: yyDollar[4].selStmt}
 		}
-	case 528:
+	case 530:
 		yyDollar = yyS[yypt-6 : yypt+1]
-		//line sql.y:2688
+//line sql.y:2702
 		{
 			// Drop the redundant parenthesis.
 			yyVAL.ins = &Insert{Columns: yyDollar[2].columns, Rows: yyDollar[5].selStmt}
 		}
-	case 529:
+	case 531:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2695
+//line sql.y:2709
 		{
 			yyVAL.columns = Columns{yyDollar[1].colIdent}
 		}
-	case 530:
+	case 532:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:2699
+//line sql.y:2713
 		{
 			yyVAL.columns = Columns{yyDollar[3].colIdent}
 		}
-	case 531:
+	case 533:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:2703
+//line sql.y:2717
 		{
 			yyVAL.columns = append(yyVAL.columns, yyDollar[3].colIdent)
 		}
-	case 532:
+	case 534:
 		yyDollar = yyS[yypt-5 : yypt+1]
-		//line sql.y:2707
+//line sql.y:2721
 		{
 			yyVAL.columns = append(yyVAL.columns, yyDollar[5].colIdent)
 		}
-	case 533:
+	case 535:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:2712
+//line sql.y:2726
 		{
 			yyVAL.updateExprs = nil
 		}
-	case 534:
+	case 536:
 		yyDollar = yyS[yypt-5 : yypt+1]
-		//line sql.y:2716
+//line sql.y:2730
 		{
 			yyVAL.updateExprs = yyDollar[5].updateExprs
 		}
-	case 535:
+	case 537:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2722
+//line sql.y:2736
 		{
 			yyVAL.values = Values{yyDollar[1].valTuple}
 		}
-	case 536:
+	case 538:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:2726
+//line sql.y:2740
 		{
 			yyVAL.values = append(yyDollar[1].values, yyDollar[3].valTuple)
 		}
-	case 537:
+	case 539:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2732
+//line sql.y:2746
 		{
 			yyVAL.valTuple = yyDollar[1].valTuple
 		}
-	case 538:
+	case 540:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:2736
+//line sql.y:2750
 		{
 			yyVAL.valTuple = ValTuple{}
 		}
-	case 539:
+	case 541:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:2742
+//line sql.y:2756
 		{
 			yyVAL.valTuple = ValTuple(yyDollar[2].exprs)
 		}
-	case 540:
+	case 542:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2748
+//line sql.y:2762
 		{
 			if len(yyDollar[1].valTuple) == 1 {
 				yyVAL.expr = &ParenExpr{yyDollar[1].valTuple[0]}
@@ -5828,306 +5864,306 @@ yydefault:
 				yyVAL.expr = yyDollar[1].valTuple
 			}
 		}
-	case 541:
+	case 543:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2758
+//line sql.y:2772
 		{
 			yyVAL.updateExprs = UpdateExprs{yyDollar[1].updateExpr}
 		}
-	case 542:
+	case 544:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:2762
+//line sql.y:2776
 		{
 			yyVAL.updateExprs = append(yyDollar[1].updateExprs, yyDollar[3].updateExpr)
 		}
-	case 543:
+	case 545:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:2768
+//line sql.y:2782
 		{
 			yyVAL.updateExpr = &UpdateExpr{Name: yyDollar[1].colName, Expr: yyDollar[3].expr}
 		}
-	case 544:
+	case 546:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2774
+//line sql.y:2788
 		{
 			yyVAL.setExprs = SetExprs{yyDollar[1].setExpr}
 		}
-	case 545:
+	case 547:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:2778
+//line sql.y:2792
 		{
 			yyVAL.setExprs = append(yyDollar[1].setExprs, yyDollar[3].setExpr)
 		}
-	case 546:
+	case 548:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:2784
+//line sql.y:2798
 		{
 			yyVAL.setExpr = &SetExpr{Name: yyDollar[1].colIdent, Expr: NewStrVal([]byte("on"))}
 		}
-	case 547:
+	case 549:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:2788
+//line sql.y:2802
 		{
 			yyVAL.setExpr = &SetExpr{Name: yyDollar[1].colIdent, Expr: yyDollar[3].expr}
 		}
-	case 548:
+	case 550:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:2792
+//line sql.y:2806
 		{
 			yyVAL.setExpr = &SetExpr{Name: NewColIdent(string(yyDollar[1].bytes)), Expr: yyDollar[2].expr}
 		}
-	case 550:
+	case 552:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:2799
+//line sql.y:2813
 		{
 			yyVAL.bytes = []byte("charset")
 		}
-	case 552:
+	case 554:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2806
+//line sql.y:2820
 		{
 			yyVAL.expr = NewStrVal([]byte(yyDollar[1].colIdent.String()))
 		}
-	case 553:
+	case 555:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2810
+//line sql.y:2824
 		{
 			yyVAL.expr = NewStrVal(yyDollar[1].bytes)
 		}
-	case 554:
+	case 556:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2814
+//line sql.y:2828
 		{
 			yyVAL.expr = &Default{}
 		}
-	case 557:
+	case 559:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:2823
+//line sql.y:2837
 		{
 			yyVAL.byt = 0
 		}
-	case 558:
+	case 560:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:2825
+//line sql.y:2839
 		{
 			yyVAL.byt = 1
 		}
-	case 559:
+	case 561:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:2828
+//line sql.y:2842
 		{
 			yyVAL.empty = struct{}{}
 		}
-	case 560:
+	case 562:
 		yyDollar = yyS[yypt-3 : yypt+1]
-		//line sql.y:2830
+//line sql.y:2844
 		{
 			yyVAL.empty = struct{}{}
 		}
-	case 561:
+	case 563:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:2833
+//line sql.y:2847
 		{
 			yyVAL.str = ""
 		}
-	case 562:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2835
-		{
-			yyVAL.str = IgnoreStr
-		}
-	case 563:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2839
-		{
-			yyVAL.empty = struct{}{}
-		}
 	case 564:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2841
+//line sql.y:2849
 		{
-			yyVAL.empty = struct{}{}
+			yyVAL.str = IgnoreStr
 		}
 	case 565:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2843
+//line sql.y:2853
 		{
 			yyVAL.empty = struct{}{}
 		}
 	case 566:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2845
+//line sql.y:2855
 		{
 			yyVAL.empty = struct{}{}
 		}
 	case 567:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2847
+//line sql.y:2857
 		{
 			yyVAL.empty = struct{}{}
 		}
 	case 568:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2849
+//line sql.y:2859
 		{
 			yyVAL.empty = struct{}{}
 		}
 	case 569:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2851
+//line sql.y:2861
 		{
 			yyVAL.empty = struct{}{}
 		}
 	case 570:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2853
+//line sql.y:2863
 		{
 			yyVAL.empty = struct{}{}
 		}
 	case 571:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2855
+//line sql.y:2865
 		{
 			yyVAL.empty = struct{}{}
 		}
 	case 572:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2857
+//line sql.y:2867
 		{
 			yyVAL.empty = struct{}{}
 		}
 	case 573:
-		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:2860
+		yyDollar = yyS[yypt-1 : yypt+1]
+//line sql.y:2869
 		{
 			yyVAL.empty = struct{}{}
 		}
 	case 574:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2862
+//line sql.y:2871
 		{
 			yyVAL.empty = struct{}{}
 		}
 	case 575:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2864
+		yyDollar = yyS[yypt-0 : yypt+1]
+//line sql.y:2874
 		{
 			yyVAL.empty = struct{}{}
 		}
 	case 576:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2868
+//line sql.y:2876
 		{
 			yyVAL.empty = struct{}{}
 		}
 	case 577:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2870
+//line sql.y:2878
 		{
 			yyVAL.empty = struct{}{}
 		}
 	case 578:
-		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:2873
+		yyDollar = yyS[yypt-1 : yypt+1]
+//line sql.y:2882
 		{
 			yyVAL.empty = struct{}{}
 		}
 	case 579:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2875
+//line sql.y:2884
 		{
 			yyVAL.empty = struct{}{}
 		}
 	case 580:
-		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2877
+		yyDollar = yyS[yypt-0 : yypt+1]
+//line sql.y:2887
 		{
 			yyVAL.empty = struct{}{}
 		}
 	case 581:
+		yyDollar = yyS[yypt-1 : yypt+1]
+//line sql.y:2889
+		{
+			yyVAL.empty = struct{}{}
+		}
+	case 582:
+		yyDollar = yyS[yypt-1 : yypt+1]
+//line sql.y:2891
+		{
+			yyVAL.empty = struct{}{}
+		}
+	case 583:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:2880
+//line sql.y:2894
 		{
 			yyVAL.colIdent = ColIdent{}
 		}
-	case 582:
+	case 584:
 		yyDollar = yyS[yypt-2 : yypt+1]
-		//line sql.y:2882
+//line sql.y:2896
 		{
 			yyVAL.colIdent = yyDollar[2].colIdent
 		}
-	case 583:
+	case 585:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2886
+//line sql.y:2900
 		{
 			yyVAL.colIdent = NewColIdent(string(yyDollar[1].bytes))
 		}
-	case 584:
+	case 586:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2890
+//line sql.y:2904
 		{
 			yyVAL.colIdent = NewColIdent(string(yyDollar[1].bytes))
 		}
-	case 586:
+	case 588:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2897
+//line sql.y:2911
 		{
 			yyVAL.colIdent = NewColIdent(string(yyDollar[1].bytes))
 		}
-	case 587:
+	case 589:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2903
+//line sql.y:2917
 		{
 			yyVAL.tableIdent = NewTableIdent(string(yyDollar[1].bytes))
 		}
-	case 588:
+	case 590:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2907
+//line sql.y:2921
 		{
 			yyVAL.tableIdent = NewTableIdent(string(yyDollar[1].bytes))
 		}
-	case 590:
+	case 592:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:2914
+//line sql.y:2928
 		{
 			yyVAL.tableIdent = NewTableIdent(string(yyDollar[1].bytes))
 		}
-	case 781:
+	case 783:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:3130
+//line sql.y:3144
 		{
 			if incNesting(yylex) {
 				yylex.Error("max nesting level reached")
 				return 1
 			}
 		}
-	case 782:
+	case 784:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:3139
+//line sql.y:3153
 		{
 			decNesting(yylex)
 		}
-	case 783:
+	case 785:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:3144
+//line sql.y:3158
 		{
 			forceEOF(yylex)
 		}
-	case 784:
+	case 786:
 		yyDollar = yyS[yypt-0 : yypt+1]
-		//line sql.y:3149
+//line sql.y:3163
 		{
 			forceEOF(yylex)
 		}
-	case 785:
+	case 787:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:3153
+//line sql.y:3167
 		{
 			forceEOF(yylex)
 		}
-	case 786:
+	case 788:
 		yyDollar = yyS[yypt-1 : yypt+1]
-		//line sql.y:3157
+//line sql.y:3171
 		{
 			forceEOF(yylex)
 		}
diff --git a/sql.y b/sql.y
index efbb794..3ff930c 100644
--- a/sql.y
+++ b/sql.y
@@ -908,6 +908,10 @@ unsigned_opt:
   {
     $$ = BoolVal(true)
   }
+| SIGNED
+  {
+    $$ = BoolVal(false)
+  }
 
 zero_fill_opt:
   {
@@ -1034,10 +1038,16 @@ column_comment_opt:
 index_definition:
   index_info '(' index_column_list ')' index_option_list
   {
+    if $1.Name.val == "" && len($3) > 0 {
+        $1.Name.val = $3[0].Column.val
+    }
     $$ = &IndexDefinition{Info: $1, Columns: $3, Options: $5}
   }
 | index_info '(' index_column_list ')'
   {
+    if $1.Name.val == "" && len($3) > 0 {
+        $1.Name.val = $3[0].Column.val
+    }
     $$ = &IndexDefinition{Info: $1, Columns: $3}
   }
 
@@ -1097,6 +1107,10 @@ index_info:
   {
     $$ = &IndexInfo{Type: string($1), Name: NewColIdent(string($2)), Unique: false}
   }
+| index_or_key
+  {
+    $$ = &IndexInfo{Type: string($1), Unique: false}
+  }
 
 index_or_key:
     INDEX