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Bug#36345 Test 'func_misc' fails on RHAS3 x86_64

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Fix for this bug and a second similar problem
found during experimenting.

This replaces the first fix (already pushed to 5.1
and merged to 6.0) which
- failed in runs with the embedded server
- cannot be ported back to 5.0
This commit is contained in:
Matthias Leich mleich@mysql.com
2008-05-29 18:38:10 +02:00
parent 9aa8ba55f0
commit 361dcb1a90
2 changed files with 273 additions and 59 deletions
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122
mysql-test/r/func_misc.result
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@ -99,41 +99,99 @@ t1 CREATE TABLE `t1` (
`length(uuid())` int(10) NOT NULL default '0'
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
create table t1 (a timestamp default '2005-05-05 01:01:01',
b timestamp default '2005-05-05 01:01:01');
insert into t1 set a = now();
select sleep(3);
sleep(3)
0
update t1 set b = now();
select timediff(b, a) >= '00:00:03' from t1;
timediff(b, a) >= '00:00:03'
#------------------------------------------------------------------------
# Tests for Bug#6760 and Bug#12689
SET @row_count = 4;
SET @sleep_time_per_result_row = 1;
SET @max_acceptable_delay = 2;
SET @@global.query_cache_size = 1024 * 64;
DROP TEMPORARY TABLE IF EXISTS t_history;
DROP TABLE IF EXISTS t1;
CREATE TEMPORARY TABLE t_history (attempt SMALLINT,
start_ts DATETIME, end_ts DATETIME,
start_cached INTEGER, end_cached INTEGER);
CREATE TABLE t1 (f1 BIGINT);
INSERT INTO t1 VALUES (1);
INSERT INTO t1 VALUES (1);
INSERT INTO t1 VALUES (1);
INSERT INTO t1 VALUES (1);
INSERT INTO t_history
SET attempt = 4 - 4 + 1, start_ts = NOW(),
start_cached = 0;
SELECT *, SLEEP(@sleep_time_per_result_row) FROM t1;
f1 SLEEP(@sleep_time_per_result_row)
1 0
1 0
1 0
1 0
UPDATE t_history SET end_ts = NOW()
WHERE attempt = 4 - 4 + 1;
UPDATE t_history SET end_cached = 0
WHERE attempt = 4 - 4 + 1;
INSERT INTO t_history
SET attempt = 4 - 3 + 1, start_ts = NOW(),
start_cached = 0;
SELECT *, SLEEP(@sleep_time_per_result_row) FROM t1;
f1 SLEEP(@sleep_time_per_result_row)
1 0
1 0
1 0
1 0
UPDATE t_history SET end_ts = NOW()
WHERE attempt = 4 - 3 + 1;
UPDATE t_history SET end_cached = 0
WHERE attempt = 4 - 3 + 1;
INSERT INTO t_history
SET attempt = 4 - 2 + 1, start_ts = NOW(),
start_cached = 0;
SELECT *, SLEEP(@sleep_time_per_result_row) FROM t1;
f1 SLEEP(@sleep_time_per_result_row)
1 0
1 0
1 0
1 0
UPDATE t_history SET end_ts = NOW()
WHERE attempt = 4 - 2 + 1;
UPDATE t_history SET end_cached = 0
WHERE attempt = 4 - 2 + 1;
INSERT INTO t_history
SET attempt = 4 - 1 + 1, start_ts = NOW(),
start_cached = 0;
SELECT *, SLEEP(@sleep_time_per_result_row) FROM t1;
f1 SLEEP(@sleep_time_per_result_row)
1 0
1 0
1 0
1 0
UPDATE t_history SET end_ts = NOW()
WHERE attempt = 4 - 1 + 1;
UPDATE t_history SET end_cached = 0
WHERE attempt = 4 - 1 + 1;
# Test 1: Does the query with SLEEP need a reasonable time?
SELECT COUNT(*) > 4 - 1 INTO @aux1 FROM t_history
WHERE TIMEDIFF(end_ts,start_ts) - @sleep_time_per_result_row * @row_count
BETWEEN 0 AND @max_acceptable_delay;
SELECT @aux1 AS "Expect 1";
Expect 1
1
drop table t1;
set global query_cache_size=1355776;
create table t1 (a int);
insert into t1 values (1),(1),(1);
create table t2 (a datetime default null, b datetime default null);
insert into t2 set a = now();
select a from t1 where sleep(1);
a
update t2 set b = now() where b is null;
insert into t2 set a = now();
select a from t1 where sleep(a);
a
update t2 set b = now() where b is null;
insert into t2 set a = now();
select a from t1 where sleep(1);
a
update t2 set b = now() where b is null;
select timediff(b, a) >= '00:00:03' from t2;
timediff(b, a) >= '00:00:03'
# Test 2: Does the query with SLEEP need a reasonable time even in case
# of the non first execution?
SELECT COUNT(*) > 4 - 1 - 1 INTO @aux2 FROM t_history
WHERE TIMEDIFF(end_ts,start_ts) - @sleep_time_per_result_row * @row_count
BETWEEN 0 AND @max_acceptable_delay
AND attempt > 1;
SELECT @aux2 AS "Expect 1";
Expect 1
1
# Test 3: The query with SLEEP must be not cached.
SELECT COUNT(*) = 4 INTO @aux3 FROM t_history
WHERE end_cached = start_cached;
SELECT @aux3 AS "Expect 1";
Expect 1
1
1
drop table t2;
drop table t1;
set global query_cache_size=default;
DROP TABLE t1;
DROP TEMPORARY TABLE t_history;
SET @@global.query_cache_size = default;
create table t1 select INET_ATON('255.255.0.1') as `a`;
show create table t1;
Table Create Table