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# This test requires that --log-output includes 'table', and the general
# log is on
flush status;
--disable_warnings
drop table if exists t1;
--enable_warnings
# End of 4.1 tests
#
# last_query_cost
#
select 1;
show status like 'last_query_cost';
create table t1 (a int) engine=myisam;
insert into t1 values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10);
insert into t1 values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10);
insert into t1 values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10);
insert into t1 values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10);
insert into t1 values (1),(2),(3),(4),(5),(6),(7),(8),(9),(10);
select * from t1 where a=6;
show status like 'last_query_cost';
# Ensure value dosn't change by second status call
show status like 'last_query_cost';
select 1;
show status like 'last_query_cost';
drop table t1;
#
# Test for Bug #15933 max_used_connections is wrong after FLUSH STATUS
# if connections are cached
#
#
# The first suggested fix from the bug report was chosen
# (see http://bugs.mysql.com/bug.php?id=15933):
#
# a) On flushing the status, set max_used_connections to
# threads_connected, not to 0.
#
# b) Check if it is necessary to increment max_used_connections when
# taking a thread from the cache as well as when creating new threads
#
# Wait for at most $disconnect_timeout seconds for disconnects to finish.
let $disconnect_timeout = 10;
# Wait for any previous disconnects to finish.
FLUSH STATUS;
--disable_query_log
--disable_result_log
eval SET @wait_left = $disconnect_timeout;
let $max_used_connections = `SHOW STATUS LIKE 'max_used_connections'`;
eval SET @max_used_connections = SUBSTRING('$max_used_connections', 21)+0;
let $max_used = `SELECT @max_used_connections`;
let $wait_left= `SELECT @wait_left`;
while ($max_used != 1 && $wait_left > 0)
{
sleep 1;
FLUSH STATUS;
SET @wait_left = @wait_left - 1;
let $max_used_connections = `SHOW STATUS LIKE 'max_used_connections'`;
SET @max_used_connections = SUBSTRING('$max_used_connections', 21)+0;
let $max_used = `SELECT @max_used_connections`;
let $wait_left= `SELECT @wait_left`;
}
--enable_query_log
--enable_result_log
# Prerequisite.
SHOW STATUS LIKE 'max_used_connections';
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME LIKE 'max_used_connections';
# Save original setting.
connect (con1,localhost,root,,);
connect (con2,localhost,root,,);
connection con1;
disconnect con2;
connection default;
disconnect con1;
# Check that max_used_connections still reflects maximum value.
SHOW STATUS LIKE 'max_used_connections';
SELECT * FROM INFORMATION_SCHEMA.SESSION_STATUS WHERE VARIABLE_NAME LIKE 'max_used_connections';
#
# Bug #30377: EXPLAIN loses last_query_cost when used with UNION
#
CREATE TABLE t1 ( a INT ) ENGINE=MyISAM;
INSERT INTO t1 VALUES (1), (2);
SELECT a FROM t1 LIMIT 1;
SHOW SESSION STATUS LIKE 'Last_query_cost';
EXPLAIN SELECT a FROM t1;
SHOW SESSION STATUS LIKE 'Last_query_cost';
SELECT a FROM t1 UNION SELECT a FROM t1 ORDER BY a;
SHOW SESSION STATUS LIKE 'Last_query_cost';
EXPLAIN SELECT a FROM t1 UNION SELECT a FROM t1 ORDER BY a;
SHOW SESSION STATUS LIKE 'Last_query_cost';
SELECT a IN (SELECT a FROM t1) FROM t1 LIMIT 1;
SHOW SESSION STATUS LIKE 'Last_query_cost';
SELECT (SELECT a FROM t1 LIMIT 1) x FROM t1 LIMIT 1;
SHOW SESSION STATUS LIKE 'Last_query_cost';
SELECT * FROM t1 a, t1 b LIMIT 1;
SHOW SESSION STATUS LIKE 'Last_query_cost';
DROP TABLE t1;
# End of 5.0 tests
# https://bugs.launchpad.net/drizzle/+bug/310508
#
#
# Ensure that SHOW STATUS only changes global status variables
#
#connect (con1,localhost,root,,);
#let $rnd_next = `show global status like 'handler_read_rnd_next'`;
#let $tmp_table = `show global status like 'Created_tmp_tables'`;
#show status like 'com_show_status';
#show status like 'hand%write%';
#show status like '%tmp%';
#show status like 'hand%write%';
#show status like '%tmp%';
#show status like 'com_show_status';
#let $rnd_next2 = `show global status like 'handler_read_rnd_next'`;
#let $tmp_table2 = `show global status like 'Created_tmp_tables'`;
#--disable_query_log
#eval select substring_index('$rnd_next2',0x9,-1)-substring_index('$rnd_next',0x9,-1) as rnd_diff, substring_index('$tmp_table2',0x9,-1)-substring_index('$tmp_table',0x9,-1) as tmp_table_diff;
#--enable_query_log
# End of 5.1 tests
#
# Bug #17954: Threads_connected > Threads_created
#
#SELECT VARIABLE_VALUE INTO @tc FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'Threads_connected';
#SELECT VARIABLE_NAME FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'Threads_created' AND VARIABLE_VALUE < @tc;
#SELECT VARIABLE_VALUE INTO @tr FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'Threads_running';
#FLUSH STATUS;
#SELECT * FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'Threads_connected' AND VARIABLE_VALUE < @tc;
#SELECT * FROM INFORMATION_SCHEMA.GLOBAL_STATUS WHERE VARIABLE_NAME = 'Threads_running' AND VARIABLE_VALUE < @tr;
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