executor: global index join returns wrong result

[L-maple]

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

set enable-global-index=true in config/config.toml.example

create table t1 (id int, c int) partition by range (c) (
partition p0 values less than (4),
partition p1 values less than (7),
partition p2 values less than (10));
alter table t1 add unique idx(id);
insert into t1 values (1,3), (3,4), (5,6), (7,9);
create table t2 (id int, c int);
insert into t2 values (1, 3);
select /*+ INL_JOIN(t1, t2) */ * from t1 partition(p0) inner join t2 on t1.id = t2.id;
select /*+ INL_JOIN(t1, t2) */ t1.id from t1 partition(p0) inner join t2 on t1.id = t2.id;

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

The first select result: 1 3 1 3
The second select result: 1

3. What did you see instead (Required)

The first select result: empty set
The second select result: empty set

4. What is your TiDB version? (Required)

                                                            |

+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Release Version: v6.7.0-alpha-205-g29adb0aa8-dirty
Edition: Community
Git Commit Hash: 29adb0a
Git Branch: HEAD
UTC Build Time: 2023-03-09 09:40:00
GoVersion: go1.19.4
Race Enabled: false
TiKV Min Version: 6.2.0-alpha
Check Table Before Drop: false
Store: unistore |
+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
1 row in set (0.00 sec)