MDEV-6523 CONNECT temporary table created

check_engine() was not called for assisted discovery

sql/sql_table.cc

@@ -4372,9 +4372,6 @@ handler *mysql_create_frm_image(THD *thd,
     DBUG_RETURN(NULL);
   }
 
-  if (check_engine(thd, db, table_name, create_info))
-    DBUG_RETURN(NULL);
-
   set_table_default_charset(thd, create_info, (char*) db);
 
   db_options= create_info->table_options;
@@ -4780,6 +4777,9 @@ int create_table_impl(THD *thd,
 
   THD_STAGE_INFO(thd, stage_creating_table);
 
+  if (check_engine(thd, orig_db, orig_table_name, create_info))
+    goto err;
+
   if (create_table_mode == C_ASSISTED_DISCOVERY)
   {
     /* check that it's used correctly */

storage/connect/mysql-test/connect/r/temporary.result

+CREATE TEMPORARY  TABLE  t1 (a int not null)
+ENGINE=CONNECT table_type=MYSQL  CONNECTION='mysql://root@127.0.0.1/test/t2';
+ERROR HY000: Table storage engine 'CONNECT' does not support the create option 'TEMPORARY'
+CREATE TEMPORARY  TABLE  t1
+ENGINE=CONNECT table_type=MYSQL  CONNECTION='mysql://root@127.0.0.1/test/t2';
+ERROR HY000: Table storage engine 'CONNECT' does not support the create option 'TEMPORARY'

storage/connect/mysql-test/connect/t/temporary.test

+#
+# CONNECT tables cannot be TEMPORARY
+#
+
+--error ER_ILLEGAL_HA_CREATE_OPTION
+CREATE TEMPORARY  TABLE  t1 (a int not null)
+  ENGINE=CONNECT table_type=MYSQL  CONNECTION='mysql://root@127.0.0.1/test/t2';
+
+# also with assisted discovery
+--error ER_ILLEGAL_HA_CREATE_OPTION
+CREATE TEMPORARY  TABLE  t1
+  ENGINE=CONNECT table_type=MYSQL  CONNECTION='mysql://root@127.0.0.1/test/t2';
+