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MDEV-31957 Concurrent ALTER and ANALYZE collecting statistics can result in stale statistical data

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Fixed hang when renaming index to original name
This commit is contained in:
Monty
2023-10-07 17:17:15 +03:00
parent fdcb443e62
commit b159f05a63
3 changed files with 56 additions and 2 deletions
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15
mysql-test/main/analyze.test
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@ -254,6 +254,21 @@ SELECT index_name FROM mysql.index_stats WHERE table_name = 't1' order by index_
--error ER_DROP_INDEX_FK
ALTER TABLE t1 DROP KEY idx;
DROP TABLE t1;
--echo #
--echo # Check index rename where name is not changed
--echo #
create or replace table t1 (a int primary key, b int, c int, key b (b,c));
show create table t1;
analyze table t1 persistent for all;
select * from mysql.index_stats where table_name= "t1";
alter ignore table t1 rename key `b` to b, LOCK=shared;
select * from mysql.index_stats where table_name= "t1";
alter ignore table t1 rename key `b` to `B`, LOCK=shared;
select * from mysql.index_stats where table_name= "t1";
drop table t1;
--echo #
--echo # End of 10.6 tests
--echo #