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MDEV-28576 RENAME COLUMN with NOCOPY algorithm leads to corrupt partitioned table

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10.5 part: test cases and comments.
The code is in the merge commit 74fe1c44aa

When f.ex. table is partitioned by HASH(a) and we rename column `a' to
`b' partitioning filter stays unchanged: HASH(a). That's the wrong
behavior.

The patch updates partitioning filter in accordance to the new columns
names. That includes partition/subpartition expression and
partition/subpartition field list.
This commit is contained in:
Aleksey Midenkov
2022-10-07 00:45:21 +03:00
parent 74fe1c44aa
commit fa0cada95b
6 changed files with 135 additions and 1 deletions
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41
mysql-test/main/partition_alter.test
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@ -204,3 +204,44 @@ delete from t order by b limit 1;
drop table t;
--echo # End of 10.3 tests
--echo #
--echo # MDEV-28576 RENAME COLUMN with NOCOPY algorithm leads to corrupt partitioned table
--echo #
create table t (a int)
partition by list (a)
subpartition by hash(a) subpartitions 2
(partition p0 values in (1));
alter table t rename column a to b, algorithm=nocopy;
show create table t;
alter table t rename column b to c, algorithm=copy;
show create table t;
drop table t;
create table t (d int, e int)
partition by list columns (d, e)
subpartition by key (d, e)
(partition p0 values in ((2, 3)));
alter table t rename column d to f, rename column e to g, algorithm=nocopy;
show create table t;
alter table t rename column f to h, rename column g to i, algorithm=copy;
show create table t;
drop table t;
create table t (k int, l int)
partition by range (k)
subpartition by hash(l) subpartitions 4
(partition p0 values less than (5));
alter table t rename column k to l, rename column l to k;
show create table t;
drop table t;
create table t (a int, b int) partition by list (b) (partition p1 values in (1, 2));
insert into t values (0, 1), (2, 2);
alter table t rename column b to f, rename column a to b, algorithm=nocopy;
check table t;
delete from t order by b limit 1;
# cleanup
drop table t;
--echo # End of 10.5 tests