Make schema name for the CTA queries and limit configurable (#8867)

* Make schema name configurable

Fixing unit tests

Fix table quoting

Mypy

Split tests out for sqlite

Grant more permissions for mysql user

Postgres doesn't support if not exists

More logging

Commit for table creation

Priviliges for postgres

Update tests

Resolve comments

Lint

No limits for the CTA queries if configures

* CTA -> CTAS and dict -> {}

* Move database creation to the .travis file

* Black

* Move tweaks to travis db setup

* Remove left over version

* Address comments

* Quote table names in the CTAS queries

* Pass tmp_schema_name for the query execution

* Rebase alembic migration

* Switch to python3 mypy

* SQLLAB_CTA_SCHEMA_NAME_FUNC -> SQLLAB_CTAS_SCHEMA_NAME_FUNC

* Black

tests/base_tests.py

@@ -229,22 +229,27 @@ class SupersetTestCase(TestCase):
         query_limit=None,
         database_name="examples",
         sql_editor_id=None,
+        select_as_cta=False,
+        tmp_table_name=None,
     ):
         if user_name:
             self.logout()
             self.login(username=(user_name or "admin"))
         dbid = self._get_database_by_name(database_name).id
+        json_payload = {
+            "database_id": dbid,
+            "sql": sql,
+            "client_id": client_id,
+            "queryLimit": query_limit,
+            "sql_editor_id": sql_editor_id,
+        }
+        if tmp_table_name:
+            json_payload["tmp_table_name"] = tmp_table_name
+        if select_as_cta:
+            json_payload["select_as_cta"] = select_as_cta
+
         resp = self.get_json_resp(
-            "/superset/sql_json/",
-            raise_on_error=False,
-            json_=dict(
-                database_id=dbid,
-                sql=sql,
-                select_as_create_as=False,
-                client_id=client_id,
-                queryLimit=query_limit,
-                sql_editor_id=sql_editor_id,
-            ),
+            "/superset/sql_json/", raise_on_error=False, json_=json_payload
         )
         if raise_on_error and "error" in resp:
             raise Exception("run_sql failed")