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MDEV-15380 Index for versioned table gets corrupt after partitioning and DELETE

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In a test case Update occurs between Search and Delete/Update. This corrupts rowid
which Search saves for Delete/Update. Patch prevents this by using of
HA_EXTRA_REMEMBER_POS and HA_EXTRA_RESTORE_POS in a partition code.

This situation possibly occurs only with system versioning table and partition.
MyISAM and Aria engines are affected.

fix by midenok
Closes #705
This commit is contained in:
Eugene Kosov
2018-05-17 09:33:04 +03:00
committed by Sergei Golubchik
parent 4ec8598c1d
commit aa5683d12e
4 changed files with 55 additions and 3 deletions
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18
mysql-test/suite/versioning/r/partition.result
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@@ -483,6 +483,24 @@ delete from t1 where a is not null;
create or replace table t1 (i int) with system versioning partition by system_time limit 10 (partition p0 history, partition pn current);
select * from t1 partition (p0) for system_time all;
ERROR HY000: SYSTEM_TIME partitions in table `t1` does not support historical query
# MDEV-15380 Index for versioned table gets corrupt after partitioning and DELETE
create or replace table t1 (pk int primary key)
engine=myisam
with system versioning
partition by key() partitions 3;
set timestamp=1523466002.799571;
insert into t1 values (11),(12);
set timestamp=1523466004.169435;
delete from t1 where pk in (11, 12);
Same test but for Aria storage engine
create or replace table t1 (pk int primary key)
engine=aria
with system versioning
partition by key() partitions 3;
set timestamp=1523466002.799571;
insert into t1 values (11),(12);
set timestamp=1523466004.169435;
delete from t1 where pk in (11, 12);
# Test cleanup
drop database test;
create database test;