BigQuery: show column type on Schema Browser (#7257)

Author: yoshiokatsuneo

redash/query_runner/big_query.py

@@ -304,7 +304,7 @@ def get_schema(self, get_stats=False):
         datasets = self._get_project_datasets(project_id)
 
         query_base = """
-        SELECT table_schema, table_name, field_path
+        SELECT table_schema, table_name, field_path, data_type
         FROM `{dataset_id}`.INFORMATION_SCHEMA.COLUMN_FIELD_PATHS
         WHERE table_schema NOT IN ('information_schema')
         """
@@ -325,7 +325,7 @@ def get_schema(self, get_stats=False):
             table_name = "{0}.{1}".format(row["table_schema"], row["table_name"])
             if table_name not in schema:
                 schema[table_name] = {"name": table_name, "columns": []}
-            schema[table_name]["columns"].append(row["field_path"])
+            schema[table_name]["columns"].append({"name": row["field_path"], "type": row["data_type"]})
 
         return list(schema.values())