Partition table didn't support BatchPointGet

[Yisaer]

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

create table t1 (c int primary key)
PARTITION BY RANGE (c) (
    PARTITION p0 VALUES LESS THAN (6),
    PARTITION p1 VALUES LESS THAN (11),
    PARTITION p2 VALUES LESS THAN (16),
    PARTITION p3 VALUES LESS THAN (21)
);
Query OK, 0 rows affected (0.08 sec)

mysql> explain select * from t1 where c in (1,10);
+-----------------------------+---------+-----------+------------------------+------------------------------------------------------+
| id                          | estRows | task      | access object          | operator info                                        |
+-----------------------------+---------+-----------+------------------------+------------------------------------------------------+
| PartitionUnion_9            | 4.00    | root      |                        |                                                      |
| ├─TableReader_11            | 2.00    | root      |                        | data:TableRangeScan_10                               |
| │ └─TableRangeScan_10       | 2.00    | cop[tikv] | table:t1, partition:p0 | range:[1,1], [10,10], keep order:false, stats:pseudo |
| └─TableReader_13            | 2.00    | root      |                        | data:TableRangeScan_12                               |
|   └─TableRangeScan_12       | 2.00    | cop[tikv] | table:t1, partition:p1 | range:[1,1], [10,10], keep order:false, stats:pseudo |
+-----------------------------+---------+-----------+------------------------+------------------------------------------------------+
5 rows in set (0.00 sec)

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

Should use BatchPointGet

3. What did you see instead (Required)

Use TableReaderExecutor instead

4. What is your TiDB version? (Required)

mysql> SELECT tidb_version()
    -> ;
+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| tidb_version()                                                                                                                                                                                                                                                                                                                                       |
+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Release Version: v4.0.0-beta.2-1836-g3942c411f-dirty
Edition: Community
Git Commit Hash: 3942c411f3e25b61ffe5eb0d93864f11c7f9f495
Git Branch: forbid_pointget_cross_dc
UTC Build Time: 2020-12-17 04:16:42
GoVersion: go1.15rc1
Race Enabled: false
TiKV Min Version: v3.0.0-60965b006877ca7234adaced7890d7b029ed1306
Check Table Before Drop: false |
+------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
1 row in set (0.00 sec)

[xiaodong-ji]

/assign

[qw4990]

Close since it has been solved by #24856.