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MDEV-25327 Unexpected ER_DUP_ENTRY upon dropping PK column from system-versioned table

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When dropped all user key-parts we also drop key-parts of implicit system fields.
This commit is contained in:
Aleksey Midenkov
2021-04-13 23:56:49 +03:00
parent cc3105e100
commit 562bbf5212
3 changed files with 49 additions and 2 deletions
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17
mysql-test/suite/versioning/r/alter.result
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@@ -742,3 +742,20 @@ create or replace table t1 (x int);
alter table t1 add column y timestamp(6) as row start;
ERROR HY000: Table `t1` is not system-versioned
drop table t1;
#
# MDEV-25327 Unexpected ER_DUP_ENTRY upon dropping PK column from system-versioned table
#
create table t1 (pk int, a int, primary key (pk), key (a))
with system versioning;
insert into t1 values (1, 1), (2, 2);
delete from t1;
set system_versioning_alter_history= keep;
alter table t1 drop pk;
drop table t1;
create table t1 (pk int, a int, primary key (pk), key (a))
with system versioning;
insert into t1 values (1, 2), (2, 8), (3, 4), (4, 4), (5, 0);
delete from t1;
set system_versioning_alter_history= keep;
alter ignore table t1 drop pk;
drop table t1;