mariadb/mysql-test/include/query_cache.inc
Mattias Jonsson 7e21bee031 Bug#11761296: 53775: QUERY ON PARTITIONED TABLE RETURNS CACHED
RESULT FROM PREVIOUS TRANSACTION

The current Query Cache API is not fully compatible with
the partitioning engine.

There is no good way to implement support for QC due to:
1) a static callback for ha_partition would need to have access
to all partition names and call the underlying callback for each
[sub]partition with the correct name.
2) pruning would be impossible, even if one used the ulonglong
engine_data due to if engine_data is changed, the table is
invalidated by the QC.

So the only viable solution to avoid incorrect data is to not allow
caching of queries using partitioned tables.

(There are some extra changes, due to removal of \r as line break)
2012-02-20 22:59:11 +01:00

195 lines
5.7 KiB
PHP

# include/query_cache.inc
#
# The variables
# $engine_type -- storage engine to be tested
# $test_foreign_keys -- 0, skip foreign key tests
# -- 1, do not skip foreign key tests
# $partitions_a -- partition by column 'a'
# $partitions_id -- partition by column 'id'
# $partitions_s1 -- partition by column 's1'
# have to be set before sourcing this script.
#
# Last update:
# 2006-08-02 ML test refactored
# old name was innodb_cache.test
# main code went into include/query_cache.inc
#
eval SET SESSION STORAGE_ENGINE = $engine_type;
# Initialise
--disable_warnings
drop table if exists t1,t2,t3;
--enable_warnings
set @save_query_cache_size = @@global.query_cache_size;
set GLOBAL query_cache_size = 1355776;
#
# Without auto_commit.
#
flush status;
set autocommit=0;
eval create table t1 (a int not null)$partitions_a;
insert into t1 values (1),(2),(3);
--sorted_result
select * from t1;
show status like "Qcache_queries_in_cache";
drop table t1;
commit;
set autocommit=1;
begin;
eval create table t1 (a int not null)$partitions_a;
insert into t1 values (1),(2),(3);
--sorted_result
select * from t1;
show status like "Qcache_queries_in_cache";
drop table t1;
commit;
eval create table t1 (a int not null)$partitions_a;
eval create table t2 (a int not null)$partitions_a;
eval create table t3 (a int not null)$partitions_a;
insert into t1 values (1),(2);
insert into t2 values (1),(2);
insert into t3 values (1),(2);
--sorted_result
select * from t1;
--sorted_result
select * from t2;
--sorted_result
select * from t3;
show status like "Qcache_queries_in_cache";
show status like "Qcache_hits";
begin;
--sorted_result
select * from t1;
--sorted_result
select * from t2;
--sorted_result
select * from t3;
show status like "Qcache_queries_in_cache";
show status like "Qcache_hits";
insert into t1 values (3);
insert into t2 values (3);
insert into t1 values (4);
--sorted_result
select * from t1;
--sorted_result
select * from t2;
--sorted_result
select * from t3;
show status like "Qcache_queries_in_cache";
show status like "Qcache_hits";
commit;
show status like "Qcache_queries_in_cache";
drop table t3,t2,t1;
eval CREATE TABLE t1 (id int(11) NOT NULL auto_increment, PRIMARY KEY (id))$partitions_id;
select count(*) from t1;
insert into t1 (id) values (0);
select count(*) from t1;
drop table t1;
if ($test_foreign_keys)
{
#
# one statement roll back inside transation
#
CREATE TABLE t1 ( id int(10) NOT NULL auto_increment, a varchar(25) default NULL, PRIMARY KEY (id), UNIQUE KEY a (a));
CREATE TABLE t2 ( id int(10) NOT NULL auto_increment, b varchar(25) default NULL, PRIMARY KEY (id), UNIQUE KEY b (b));
CREATE TABLE t3 ( id int(10) NOT NULL auto_increment, t1_id int(10) NOT NULL default '0', t2_id int(10) NOT NULL default '0', state int(11) default NULL, PRIMARY KEY (id), UNIQUE KEY t1_id (t1_id,t2_id), KEY t2_id (t2_id,t1_id), CONSTRAINT `t3_ibfk_1` FOREIGN KEY (`t1_id`) REFERENCES `t1` (`id`), CONSTRAINT `t3_ibfk_2` FOREIGN KEY (`t2_id`) REFERENCES `t2` (`id`));
INSERT INTO t1 VALUES (1,'me');
INSERT INTO t2 VALUES (1,'you');
INSERT INTO t3 VALUES (2,1,1,2);
delete from t3 where t1_id = 1 and t2_id = 1;
select t1.* from t1, t2, t3 where t3.state & 1 = 0 and t3.t1_id = t1.id and t3.t2_id = t2.id and t1.id = 1 order by t1.a asc;
begin;
insert into t3 VALUES ( NULL, 1, 1, 2 );
-- error ER_DUP_ENTRY
insert into t3 VALUES ( NULL, 1, 1, 2 );
commit;
select t1.* from t1, t2, t3 where t3.state & 1 = 0 and t3.t1_id = t1.id and t3.t2_id = t2.id and t1.id = 1 order by t1.a asc;
drop table t3,t2,t1;
}
#
# Test query cache with two interleaving transactions
#
# Establish connection1
connect (connection1,localhost,root,,);
eval SET SESSION STORAGE_ENGINE = $engine_type;
SET @@autocommit=1;
connection default;
--echo connection default
# This should be 'YES'.
SHOW VARIABLES LIKE 'have_query_cache';
SET GLOBAL query_cache_size = 200000;
flush status;
SET @@autocommit=1;
eval SET SESSION STORAGE_ENGINE = $engine_type;
eval CREATE TABLE t2 (s1 int, s2 varchar(1000), key(s1))$partitions_s1;
INSERT INTO t2 VALUES (1,repeat('a',10)),(2,repeat('a',10)),(3,repeat('a',10)),(4,repeat('a',10));
COMMIT;
START TRANSACTION;
SELECT sql_cache count(*) FROM t2 WHERE s2 = 'w';
UPDATE t2 SET s2 = 'w' WHERE s1 = 3;
SELECT sql_cache count(*) FROM t2 WHERE s2 = 'w';
show status like "Qcache_queries_in_cache";
connection connection1;
--echo connection connection1
START TRANSACTION;
SELECT sql_cache count(*) FROM t2 WHERE s2 = 'w';
INSERT INTO t2 VALUES (5,'w');
SELECT sql_cache count(*) FROM t2 WHERE s2 = 'w';
COMMIT;
SELECT sql_cache count(*) FROM t2 WHERE s2 = 'w';
show status like "Qcache_queries_in_cache";
connection default;
--echo connection default
SELECT sql_cache count(*) FROM t2 WHERE s2 = 'w';
COMMIT;
show status like "Qcache_queries_in_cache";
SELECT sql_cache count(*) FROM t2 WHERE s2 = 'w';
show status like "Qcache_queries_in_cache";
connection connection1;
--echo connection connection1
SELECT sql_cache count(*) FROM t2 WHERE s2 = 'w';
START TRANSACTION;
SELECT sql_cache count(*) FROM t2 WHERE s2 = 'w';
INSERT INTO t2 VALUES (6,'w');
SELECT sql_cache count(*) FROM t2 WHERE s2 = 'w';
connection default;
--echo connection default
SELECT sql_cache count(*) FROM t2 WHERE s2 = 'w';
START TRANSACTION;
SELECT sql_cache count(*) FROM t2 WHERE s2 = 'w';
DELETE from t2 WHERE s1=3;
SELECT sql_cache count(*) FROM t2 WHERE s2 = 'w';
COMMIT;
connection connection1;
--echo connection connection1
COMMIT;
SELECT sql_cache count(*) FROM t2 WHERE s2 = 'w';
show status like "Qcache_queries_in_cache";
show status like "Qcache_hits";
# Final cleanup
disconnect connection1;
--source include/wait_until_disconnected.inc
connection default;
set @@global.query_cache_size = @save_query_cache_size;
drop table t2;