load data replace error

[nickzabc]

Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

Execution the following SQL：

use test;
drop table if exists t1;
create table t1(id int, name varchar(20), primary key(id) clustered);
load data local infile './a.dat' replace into table t1 fields terminated by ',' enclosed by '' (id,name);
load data local infile './b.dat' replace into table t1 fields terminated by ',' enclosed by '' (id,name);

Content of a.dat

1,abc
2,cdef
3,asdf

Content of b.dat

1,AAA
2,BBB
3,asdf

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

success

3. What did you see instead (Required)

load data local infile './b.dat' replace into table t1 fields terminated by ',' enclosed by '' (id,name);
ERROR 8141 (HY000): assertion failed: key: 7480000000000000885f728000000000000001, assertion: NotExist, start_ts: 441434804390461442, existing start ts: 441434803092848642, existing commit ts: 441434803092848643

4. What is your TiDB version? (Required)

6.5.2

[zyguan]

fixed by #43858

[you06]

With refactor of #42565, the load data worker uses internal sessions and the assertion is turned off, so this replace error won't happen anymore.
Remove affect-7.1 and affect-7.3 labels.