[CARBONDATA-4341] Drop Index Fails after TABLE RENAME

Why is this PR needed?
Drop Index Fails after TABLE RENAME

What changes were proposed in this PR?
After table rename, its si tables property - parentTableName is updated
with latest name and index metadata gets updated. Dropping the table
from the metadata cache so that it would be reloaded and gets updated
property when fetched next time.

Does this PR introduce any user interface change?
No

Is any new testcase added?
Yes

This closes #4279

integration/spark/src/main/scala/org/apache/spark/sql/secondaryindex/events/AlterTableRenameEventListener.scala

@@ -51,11 +51,13 @@ class AlterTableRenameEventListener extends OperationEventListener with Logging
           .lookupRelation(Some(oldDatabaseName), newTableName)(sparkSession)
           .asInstanceOf[CarbonRelation].carbonTable
         table.getIndexTableNames(IndexType.SI.getIndexProviderName)
-          .asScala.map {
+          .asScala.foreach {
           entry =>
             CarbonSessionCatalogUtil.getClient(sparkSession).runSqlHive(
               s"ALTER TABLE $oldDatabaseName.${ entry } " +
               s"SET SERDEPROPERTIES ('parentTableName'='$newTableName')")
+            CarbonEnv.getInstance(sparkSession).carbonMetaStore
+              .removeTableFromMetadata(oldDatabaseName, entry)
         }
     }
   }

integration/spark/src/test/scala/org/apache/spark/carbondata/restructure/vectorreader/AlterTableColumnRenameTestCase.scala

@@ -780,6 +780,21 @@ class AlterTableColumnRenameTestCase extends QueryTest with BeforeAndAfterAll {
     sql("DROP TABLE IF EXISTS test_alter")
   }
 
+  test("test alter rename table and drop index") {
+    sql("drop table if exists test_rename")
+    sql("drop index if exists si on test_rename1")
+    sql("CREATE TABLE test_rename (name string,id int) STORED AS carbondata")
+    sql("insert into test_rename values('a',1)")
+    sql("insert into test_rename values('v',2)")
+    sql(s"create index si on test_rename(name) as 'carbondata'")
+    // only rename operation
+    sql("alter table test_rename rename to test_rename1")
+    checkAnswer(sql("select id from test_rename1"),
+      Seq(Row(1), Row(2)))
+    sql("drop index if exists si on test_rename1")
+    sql("drop table if exists test_rename1")
+  }
+
   override def afterAll(): Unit = {
     dropTable()
   }
@@ -788,6 +803,7 @@ class AlterTableColumnRenameTestCase extends QueryTest with BeforeAndAfterAll {
     sql("DROP TABLE IF EXISTS rename")
     sql("DROP TABLE IF EXISTS rename_partition")
     sql("DROP TABLE IF EXISTS test_rename")
+    sql("drop table if exists test_rename1")
     sql("DROP TABLE IF EXISTS test_rename_compact")
     sql("DROP TABLE IF EXISTS test_alter")
     sql("DROP TABLE IF EXISTS simple_table")