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de-obfuscate sys_vars.delay_key_write_func test

Browse source 
Test fails, because of a bug: global delay_key_write is
cached in the THD and the cached value becomes out-of-date
when the global value changes.

This is fixed in MDEV-11335
This commit is contained in:
Sergei Golubchik 2017-05-22 11:02:15 +02:00
parent ae76ff4524
commit c65dd3668b
2 changed files with 26 additions and 59 deletions
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39
mysql-test/suite/sys_vars/r/delay_key_write_func.result
View file

@ -1,23 +1,20 @@
'#--------------------FN_DYNVARS_023_01-------------------------#'
SET @start_value= @@global.delay_key_write;
SET @@global.delay_key_write = ON;
SELECT @@global.delay_key_write;
@@global.delay_key_write
ON
'connect (user1,localhost,root,,,,)'
'connection user1'
SELECT @@global.delay_key_write AS res_is_ON;
res_is_ON
ON
SET @@global.delay_key_write = ALL;
'connect (user1,localhost,root,,,,)'
'connection user1'
SELECT @@global.delay_key_write AS res_is_ALL;
res_is_ALL
ALL
'#--------------------FN_DYNVARS_023_02-------------------------#'
CREATE PROCEDURE sp_addRecords (IN var1 INT,IN var2 INT)
BEGIN
WHILE (var1 < var2) DO
INSERT INTO t1 VALUES(var1,REPEAT('MYSQL',10),100000.0/var1);
SET var1=var1+1;
END WHILE;
END//
'---check when delay_key_write is OFF---'
SET @@global.delay_key_write = OFF;
CREATE TABLE t1(
a INT PRIMARY KEY,
b VARCHAR(512),
c DOUBLE
) DELAY_KEY_WRITE = 1;
FLUSH STATUS;
CALL sp_addRecords(1,10);
SHOW STATUS LIKE 'Key_reads';
@ -32,8 +29,14 @@ Key_write_requests 9
SELECT COUNT(*) FROM t1;
COUNT(*)
9
DROP TABLE t1;
'----check when delay_key_write is ON---'
SET @@global.delay_key_write = ON;
CREATE TABLE t1(
a INT PRIMARY KEY,
b VARCHAR(512),
c DOUBLE
) DELAY_KEY_WRITE = 1;
FLUSH STATUS;
CALL sp_addRecords(1,10);
SHOW STATUS LIKE 'Key_reads';
@ -48,8 +51,14 @@ Key_write_requests 9
SELECT COUNT(*) FROM t1;
COUNT(*)
9
DROP TABLE t1;
'----check when delay_key_write is ALL---'
SET @@global.delay_key_write = ALL;
CREATE TABLE t1(
a INT PRIMARY KEY,
b VARCHAR(512),
c DOUBLE
) DELAY_KEY_WRITE = 0;
FLUSH STATUS;
CALL sp_addRecords(1,10);
SHOW STATUS LIKE 'Key_reads';

46
mysql-test/suite/sys_vars/t/delay_key_write_func.test
View file

@ -20,36 +20,14 @@
###############################################################################
--echo '#--------------------FN_DYNVARS_023_01-------------------------#'
#######################################################################
# Check if setting delay_key_write is changed in every new connection #
#######################################################################
SET @start_value= @@global.delay_key_write;
SET @@global.delay_key_write = ON;
SELECT @@global.delay_key_write;
--echo 'connect (user1,localhost,root,,,,)'
connect (user1,localhost,root,,,,);
--echo 'connection user1'
connection user1;
SELECT @@global.delay_key_write AS res_is_ON;
SET @@global.delay_key_write = ALL;
disconnect user1;
--echo 'connect (user1,localhost,root,,,,)'
connect (user1,localhost,root,,,,);
--echo 'connection user1'
connection user1;
SELECT @@global.delay_key_write AS res_is_ALL;
--echo '#--------------------FN_DYNVARS_023_02-------------------------#'
######################################################
# Begin the functionality Testing of delay_key_write #
######################################################
# create procedure to add rows
--disable_query_log
DELIMITER //;
CREATE PROCEDURE sp_addRecords (IN var1 INT,IN var2 INT)
BEGIN
@ -59,28 +37,19 @@ BEGIN
END WHILE;
END//
DELIMITER ;//
--enable_query_log
#==============================================================================
--echo '---check when delay_key_write is OFF---'
#==============================================================================
SET @@global.delay_key_write = OFF;
--disable_query_log
--disable_warnings
DROP TABLE IF EXISTS t1;
--enable_warnings
# create a table with delay_key_write enabled
CREATE TABLE t1(
a INT PRIMARY KEY,
b VARCHAR(512),
c DOUBLE
) DELAY_KEY_WRITE = 1;
--enable_query_log
FLUSH STATUS;
@ -90,6 +59,7 @@ SHOW STATUS LIKE 'Key_reads';
SHOW STATUS LIKE 'Key_writes';
SHOW STATUS LIKE 'Key_write_requests';
SELECT COUNT(*) FROM t1;
DROP TABLE t1;
#==============================================================================
--echo '----check when delay_key_write is ON---'
@ -97,17 +67,12 @@ SELECT COUNT(*) FROM t1;
SET @@global.delay_key_write = ON;
--disable_query_log
--disable_warnings
DROP TABLE IF EXISTS t1;
--enable_warnings
# create a table with delay_key_write enabled
CREATE TABLE t1(
a INT PRIMARY KEY,
b VARCHAR(512),
c DOUBLE
) DELAY_KEY_WRITE = 1;
--enable_query_log
FLUSH STATUS;
CALL sp_addRecords(1,10);
@ -116,23 +81,19 @@ SHOW STATUS LIKE 'Key_reads';
SHOW STATUS LIKE 'Key_writes';
SHOW STATUS LIKE 'Key_write_requests';
SELECT COUNT(*) FROM t1;
DROP TABLE t1;
#==============================================================================
--echo '----check when delay_key_write is ALL---'
#==============================================================================
SET @@global.delay_key_write = ALL;
--disable_query_log
--disable_warnings
DROP TABLE IF EXISTS t1;
--enable_warnings
# create a table with delay_key_write disabled
CREATE TABLE t1(
a INT PRIMARY KEY,
b VARCHAR(512),
c DOUBLE
) DELAY_KEY_WRITE = 0;
--enable_query_log
FLUSH STATUS;
CALL sp_addRecords(1,10);
@ -144,12 +105,9 @@ SELECT COUNT(*) FROM t1;
DROP PROCEDURE sp_addRecords;
DROP TABLE t1;
disconnect user1;
connection default;
SET @@global.delay_key_write= @start_value;
####################################################
# End of functionality testing for delay_key_write #
####################################################