TiDB can not record replayer stats correcly

[Rustin170506]

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

1. Create a table:

CREATE TABLE tableA (
		columnA VARCHAR(255),
		columnB DATETIME,
		columnC VARCHAR(255)
	)`

2. Dump the replayed:

plan replayer dump explain SELECT * from tableA where SUBSTRING_INDEX(tableA.columnC, '_', 1) = tableA.columnA

3. Check the plan_replayer_status table: select * from mysql.plan_replayer_status where sql_digest = ? and plan_digest = ? and origin_sql is not null

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

We can find SELECT * from tableA where SUBSTRING_INDEX(tableA.columnC, '_', 1) = tableA.columnA in the records.

3. What did you see instead (Required)

TiDB ignored it.

4. What is your TiDB version? (Required)

mysql> select tidb_version();
+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| tidb_version()                                                                                                                                                                                                                                                                               |
+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| Release Version: v7.1.0
Edition: Community
Git Commit Hash: 635a4362235e8a3c0043542e629532e3c7bb2756
Git Branch: heads/refs/tags/v7.1.0
UTC Build Time: 2023-05-30 10:50:03
GoVersion: go1.20.3
Race Enabled: false
TiKV Min Version: 6.2.0-alpha
Check Table Before Drop: false
Store: tikv |
+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
1 row in set (0.00 sec)