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|
set GLOBAL query_cache_type=ON;
set LOCAL query_cache_type=ON;
connect con1,localhost,root,,test,$MASTER_MYPORT,;
connection default;
set @initial_query_cache_size = @@global.query_cache_size;
set @@global.query_cache_size=102400;
flush status;
drop table if exists t1;
create table t1(c1 int);
insert into t1 values(1),(10),(100);
prepare stmt1 from "select * from t1 where c1=10";
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 0
execute stmt1;
c1
10
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 0
execute stmt1;
c1
10
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 1
execute stmt1;
c1
10
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 2
prepare stmt2 from "select * from t1 where c1=10";
execute stmt2;
c1
10
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 3
execute stmt2;
c1
10
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 4
execute stmt2;
c1
10
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 5
connection con1;
prepare stmt3 from "select * from t1 where c1=10";
execute stmt3;
c1
10
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 6
execute stmt3;
c1
10
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 7
execute stmt3;
c1
10
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 8
connection default;
prepare stmt10 from "SELECT * FROM t1 WHERE c1 = 100";
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 8
execute stmt10;
c1
100
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 8
execute stmt10;
c1
100
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 9
SELECT * FROM t1 WHERE c1 = 100;
c1
100
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 10
connection con1;
SELECT * FROM t1 WHERE c1 = 100;
c1
100
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 11
connection default;
prepare stmt11 from "SELECT * FROM t1 WHERE c1 = 1";
connection con1;
prepare stmt12 from "SELECT * FROM t1 WHERE c1 = 1";
connection default;
SELECT * FROM t1 WHERE c1 = 1;
c1
1
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 11
SELECT * FROM t1 WHERE c1 = 1;
c1
1
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 12
execute stmt11;
c1
1
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 13
connection con1;
execute stmt12;
c1
1
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 14
connection default;
prepare stmt1 from "select * from t1 where c1=?";
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 14
set @a=1;
execute stmt1 using @a;
c1
1
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 14
execute stmt1 using @a;
c1
1
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 15
connection con1;
set @a=1;
prepare stmt4 from "select * from t1 where c1=?";
execute stmt4 using @a;
c1
1
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 16
prepare stmt4 from "select @a from t1 where c1=?";
execute stmt4 using @a;
@a
1
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 16
execute stmt4 using @a;
@a
1
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 16
connection default;
prepare stmt1 from "select * from t1 where c1=10";
set global query_cache_size=0;
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 16
execute stmt1;
c1
10
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 16
execute stmt1;
c1
10
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 16
execute stmt1;
c1
10
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 16
connection con1;
execute stmt3;
c1
10
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 16
execute stmt3;
c1
10
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 16
execute stmt3;
c1
10
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 16
connection default;
set global query_cache_size=102400;
execute stmt1;
c1
10
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 16
execute stmt1;
c1
10
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 17
execute stmt1;
c1
10
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 18
connection con1;
execute stmt3;
c1
10
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 19
execute stmt3;
c1
10
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 20
execute stmt3;
c1
10
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 21
connection default;
set global query_cache_size=0;
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 21
execute stmt1;
c1
10
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 21
execute stmt1;
c1
10
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 21
execute stmt1;
c1
10
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 21
connection con1;
execute stmt3;
c1
10
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 21
execute stmt3;
c1
10
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 21
execute stmt3;
c1
10
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 21
connection default;
set global query_cache_size=0;
prepare stmt1 from "select * from t1 where c1=10";
connection con1;
prepare stmt3 from "select * from t1 where c1=10";
connection default;
set global query_cache_size=102400;
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 21
execute stmt1;
c1
10
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 21
execute stmt1;
c1
10
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 21
execute stmt1;
c1
10
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 21
connection con1;
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 21
execute stmt3;
c1
10
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 21
execute stmt3;
c1
10
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 21
execute stmt3;
c1
10
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 21
connection default;
set global query_cache_size=0;
prepare stmt1 from "select * from t1 where c1=?";
set global query_cache_size=102400;
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 21
set @a=1;
execute stmt1 using @a;
c1
1
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 21
set @a=100;
execute stmt1 using @a;
c1
100
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 21
set @a=10;
execute stmt1 using @a;
c1
10
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 21
drop table t1;
disconnect con1;
########################################################################
#
# BUG#25843: Changing default database between PREPARE and EXECUTE of
# statement breaks binlog.
#
########################################################################
#
# Check that default database and its attributes are fixed at the
# creation time.
#
DROP DATABASE IF EXISTS mysqltest1;
DROP DATABASE IF EXISTS mysqltest2;
CREATE DATABASE mysqltest1 COLLATE utf8_unicode_ci;
CREATE DATABASE mysqltest2 COLLATE utf8_general_ci;
CREATE TABLE mysqltest1.t1(msg VARCHAR(255));
CREATE TABLE mysqltest2.t1(msg VARCHAR(255));
use mysqltest1;
PREPARE stmt_a_1 FROM 'INSERT INTO t1 VALUES(DATABASE())';
PREPARE stmt_a_2 FROM 'INSERT INTO t1 VALUES(@@collation_database)';
EXECUTE stmt_a_1;
EXECUTE stmt_a_2;
use mysqltest2;
EXECUTE stmt_a_1;
EXECUTE stmt_a_2;
SELECT * FROM mysqltest1.t1;
msg
mysqltest1
utf8mb3_unicode_ci
mysqltest1
utf8mb3_unicode_ci
SELECT * FROM mysqltest2.t1;
msg
DROP PREPARE stmt_a_1;
DROP PREPARE stmt_a_2;
#
# The Query Cache test case.
#
DELETE FROM mysqltest1.t1;
DELETE FROM mysqltest2.t1;
INSERT INTO mysqltest1.t1 VALUES('mysqltest1.t1');
INSERT INTO mysqltest2.t1 VALUES('mysqltest2.t1');
use mysqltest1;
PREPARE stmt_b_1 FROM 'SELECT * FROM t1';
use mysqltest2;
PREPARE stmt_b_2 FROM 'SELECT * FROM t1';
EXECUTE stmt_b_1;
msg
mysqltest1.t1
EXECUTE stmt_b_2;
msg
mysqltest2.t1
use mysqltest1;
EXECUTE stmt_b_1;
msg
mysqltest1.t1
EXECUTE stmt_b_2;
msg
mysqltest2.t1
DROP PREPARE stmt_b_1;
DROP PREPARE stmt_b_2;
use test;
DROP DATABASE mysqltest1;
DROP DATABASE mysqltest2;
#
# Check that prepared statements work properly when there is no current
# database.
#
CREATE DATABASE mysqltest1 COLLATE utf8_unicode_ci;
CREATE DATABASE mysqltest2 COLLATE utf8_general_ci;
use mysqltest1;
PREPARE stmt_c_1 FROM 'SELECT DATABASE(), @@collation_database';
use mysqltest2;
PREPARE stmt_c_2 FROM 'SELECT DATABASE(), @@collation_database';
DROP DATABASE mysqltest2;
SELECT DATABASE(), @@collation_database;
DATABASE() @@collation_database
NULL latin1_swedish_ci
EXECUTE stmt_c_1;
DATABASE() @@collation_database
mysqltest1 utf8mb3_unicode_ci
SELECT DATABASE(), @@collation_database;
DATABASE() @@collation_database
NULL latin1_swedish_ci
EXECUTE stmt_c_2;
DATABASE() @@collation_database
NULL latin1_swedish_ci
Warnings:
Note 1049 Unknown database 'mysqltest2'
SELECT DATABASE(), @@collation_database;
DATABASE() @@collation_database
NULL latin1_swedish_ci
PREPARE stmt_c_3 FROM 'SELECT DATABASE(), @@collation_database';
EXECUTE stmt_c_3;
DATABASE() @@collation_database
NULL latin1_swedish_ci
use mysqltest1;
EXECUTE stmt_c_2;
DATABASE() @@collation_database
NULL latin1_swedish_ci
Warnings:
Note 1049 Unknown database 'mysqltest2'
SELECT DATABASE(), @@collation_database;
DATABASE() @@collation_database
mysqltest1 utf8mb3_unicode_ci
EXECUTE stmt_c_3;
DATABASE() @@collation_database
NULL latin1_swedish_ci
SELECT DATABASE(), @@collation_database;
DATABASE() @@collation_database
mysqltest1 utf8mb3_unicode_ci
DROP DATABASE mysqltest1;
use test;
########################################################################
#
# Bug#27430 Crash in subquery code when in PS and table DDL changed
# after PREPARE
# Check the effect of automatic reprepare on query cache
#
########################################################################
drop table if exists t1;
create table t1 (a varchar(255));
insert into t1 (a) values ("Pack my box with five dozen liquor jugs.");
flush status;
prepare stmt from "select a from t1";
execute stmt;
a
Pack my box with five dozen liquor jugs.
set @@global.query_cache_size=0;
alter table t1 add column b int;
execute stmt;
a
Pack my box with five dozen liquor jugs.
set @@global.query_cache_size=102400;
execute stmt;
a
Pack my box with five dozen liquor jugs.
execute stmt;
a
Pack my box with five dozen liquor jugs.
#
# Sic: ALTER TABLE caused an automatic reprepare
# of the prepared statement. Since the query cache was disabled
# at the time of reprepare, the new prepared statement doesn't
# work with it.
#
show status like 'Qcache_hits';
Variable_name Value
Qcache_hits 0
show status like 'Qcache_queries_in_cache';
Variable_name Value
Qcache_queries_in_cache 0
# Cleanup
deallocate prepare stmt;
drop table t1;
set @@global.query_cache_size=@initial_query_cache_size;
flush status;
set GLOBAL query_cache_type=default;
|
