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MDEV-21842 auto_increment does not increment with compound primary key on partitioned table.

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The idea of this fix is that it's enough to prevent the
next_auto_inc_val from incrementing if an error, to fix this problem
and also the MDEV-17333.
So this patch basically reverts the existing fix to the MDEV-17333.
This commit is contained in:
Alexey Botchkov
2020-11-23 14:12:30 +04:00
parent eae9311fa2
commit 75e7132fca
8 changed files with 114 additions and 46 deletions
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48
mysql-test/main/auto_increment_ranges_innodb.result
View File

@ -289,3 +289,51 @@ pk f
5 a
6 <===
drop table t1;
#
# MDEV-21842: auto_increment does not increment with compound primary
# key on partitioned table
#
create or replace table `t` (
`id` bigint(20) unsigned not null auto_increment,
`a` int(10) not null ,
`dt` date not null,
primary key (`id`, `dt`) ,
unique key (`a`, `dt`)
)
partition by range columns(`dt`)
(
partition `p202002` values less than ('2020-03-01'),
partition `P202003` values less than ('2020-04-01')
);
connect con1, localhost, root,,;
connect con2, localhost, root,,;
connection con1;
start transaction;
insert into t (a, dt) values (1, '2020-02-29');
connection con2;
start transaction;
insert into t (a, dt) values (1, '2020-02-29');
connection con1;
insert into t (a, dt) values (2, '2020-02-29');
select auto_increment from information_schema.tables where table_name='t';
auto_increment
4
commit;
connection con2;
ERROR 23000: Duplicate entry '1-2020-02-29' for key 'a'
connection con1;
select auto_increment from information_schema.tables where table_name='t';
auto_increment
4
insert into t (a, dt) values (3, '2020-02-29');
insert into t (a, dt) values (4, '2020-02-29');
disconnect con1;
disconnect con2;
connection default;
select * from t;
id a dt
1 1 2020-02-29
3 2 2020-02-29
4 3 2020-02-29
5 4 2020-02-29
drop table t;