create global binding on global temporary table not prohibited

[tiancaiamao]

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

mysql> show create table t1;
+-------+------------------------------------------------------------------------------------------------------------+
| Table | Create Table                                                                                               |
+-------+------------------------------------------------------------------------------------------------------------+
| t1    | CREATE TABLE `t1` (
  `a` int(11) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin |
+-------+------------------------------------------------------------------------------------------------------------+
1 row in set (0.00 sec)

mysql> show create table t;
+-------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Table | Create Table                                                                                                                                                                                                                      |
+-------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| t     | CREATE GLOBAL TEMPORARY TABLE `t` (
  `a` int(11) DEFAULT NULL,
  `b` int(11) DEFAULT NULL,
  KEY `a` (`a`),
  KEY `b` (`b`),
  KEY `idx` (`a`)
) ENGINE=memory DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin ON COMMIT DELETE ROWS |
+-------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
1 row in set (0.00 sec)

mysql> create global binding for select * from t1 where t1.a in (select a from t) using select * from t1 where t1.a in (select a from t use index (a));
Query OK, 0 rows affected (0.00 sec)

2. What did you expect to see? (Required)

Create binding on global temporary table should report error #25058

3. What did you see instead (Required)

Binding created, no error.

4. What is your TiDB version? (Required)

master

+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| tidb_version()                                                                                                                                                                                                                                                                                                                       |
+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Release Version: v5.2.0-alpha-334-g0c7ff7fcb-dirty
Edition: Community
Git Commit Hash: 0c7ff7fcb6533f48156345aac1f1be186a2a4f12
Git Branch: issue-26250
UTC Build Time: 2021-07-20 08:30:56
GoVersion: go1.16.6
Race Enabled: false
TiKV Min Version: v3.0.0-60965b006877ca7234adaced7890d7b029ed1306
Check Table Before Drop: false |
+--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
1 row in set (0.00 sec)

[yudongusa]

@tiancaiamao So this issue is to be resolved by PR 25058? Please assign it to winoros to code review as eurekaka is currently out of office.

[tiancaiamao]

It's a bug regression @yudongusa

[ti-srebot]

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