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SET @org_slow_query_log= @@global.slow_query_log;
SET @org_log_output= @@global.log_output;
SET @org_log_slow_admin_statements= @@global.log_slow_admin_statements;
SET @@GLOBAL.slow_query_log=OFF;
SET @@GLOBAL.log_output='TABLE';
FLUSH SLOW LOGS;
SET @@GLOBAL.slow_query_log=ON;
SET @@GLOBAL.log_slow_admin_statements=ON;
SET @saved_dbug = @@debug_dbug;
SET SESSION debug_dbug="+d,simulate_slow_query";
CREATE PROCEDURE show_slow_log()
BEGIN
SELECT CONCAT('[slow] ', sql_text) AS sql_text
FROM mysql.slow_log
WHERE sql_text NOT LIKE '%debug_dbug%';
END
$$
#
# Expect all admin statements in the slow log (ON,DEFAULT)
#
SET @@SESSION.log_slow_admin_statements=ON;
SET log_slow_filter=DEFAULT;
TRUNCATE TABLE mysql.slow_log;
CREATE TABLE t1 (a INT);
CREATE INDEX t1a ON t1 (a);
DROP INDEX t1a ON t1;
DROP TABLE t1;
CREATE TABLE t2 (a INT);
ALTER TABLE t2 RENAME t2;
RENAME TABLE t2 TO t3;
DROP TABLE t3;
CREATE TABLE t4 (a INT);
PREPARE stmt FROM 'ALTER TABLE t4 MODIFY a INT DEFAULT 1';
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
DROP TABLE t4;
CREATE SEQUENCE s4;
ALTER SEQUENCE s4 MAXVALUE 100;
PREPARE stmt FROM 'ALTER SEQUENCE s4 MAXVALUE=101';
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
DROP SEQUENCE s4;
CALL show_slow_log();
sql_text
[slow] TRUNCATE TABLE mysql.slow_log
[slow] CREATE TABLE t1 (a INT)
[slow] CREATE INDEX t1a ON t1 (a)
[slow] DROP INDEX t1a ON t1
[slow] DROP TABLE t1
[slow] CREATE TABLE t2 (a INT)
[slow] ALTER TABLE t2 RENAME t2
[slow] RENAME TABLE t2 TO t3
[slow] DROP TABLE t3
[slow] CREATE TABLE t4 (a INT)
[slow] PREPARE stmt FROM 'ALTER TABLE t4 MODIFY a INT DEFAULT 1'
[slow] ALTER TABLE t4 MODIFY a INT DEFAULT 1
[slow] DEALLOCATE PREPARE stmt
[slow] DROP TABLE t4
[slow] CREATE SEQUENCE s4
[slow] ALTER SEQUENCE s4 MAXVALUE 100
[slow] PREPARE stmt FROM 'ALTER SEQUENCE s4 MAXVALUE=101'
[slow] ALTER SEQUENCE s4 MAXVALUE=101
[slow] DEALLOCATE PREPARE stmt
[slow] DROP SEQUENCE s4
#
# Expect all admin statements in the slow log (ON,admin)
#
SET @@SESSION.log_slow_admin_statements=ON;
SET log_slow_filter=admin;
TRUNCATE TABLE mysql.slow_log;
CREATE TABLE t1 (a INT);
CREATE INDEX t1a ON t1 (a);
DROP INDEX t1a ON t1;
DROP TABLE t1;
CREATE TABLE t2 (a INT);
ALTER TABLE t2 RENAME t2;
RENAME TABLE t2 TO t3;
DROP TABLE t3;
CREATE TABLE t4 (a INT);
PREPARE stmt FROM 'ALTER TABLE t4 MODIFY a INT DEFAULT 1';
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
DROP TABLE t4;
CREATE SEQUENCE s4;
ALTER SEQUENCE s4 MAXVALUE 100;
PREPARE stmt FROM 'ALTER SEQUENCE s4 MAXVALUE=101';
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
DROP SEQUENCE s4;
CALL show_slow_log();
sql_text
[slow] CREATE INDEX t1a ON t1 (a)
[slow] DROP INDEX t1a ON t1
[slow] ALTER TABLE t2 RENAME t2
[slow] RENAME TABLE t2 TO t3
[slow] ALTER TABLE t4 MODIFY a INT DEFAULT 1
[slow] ALTER SEQUENCE s4 MAXVALUE 100
[slow] ALTER SEQUENCE s4 MAXVALUE=101
#
# Expect none of admin DDL statements in the slow log (ON,filesort)
#
SET @@SESSION.log_slow_admin_statements=ON;
SET log_slow_filter=filesort;
TRUNCATE TABLE mysql.slow_log;
CREATE TABLE t1 (a INT);
CREATE INDEX t1a ON t1 (a);
DROP INDEX t1a ON t1;
DROP TABLE t1;
CREATE TABLE t2 (a INT);
ALTER TABLE t2 RENAME t2;
RENAME TABLE t2 TO t3;
DROP TABLE t3;
CREATE TABLE t4 (a INT);
PREPARE stmt FROM 'ALTER TABLE t4 MODIFY a INT DEFAULT 1';
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
DROP TABLE t4;
CREATE SEQUENCE s4;
ALTER SEQUENCE s4 MAXVALUE 100;
PREPARE stmt FROM 'ALTER SEQUENCE s4 MAXVALUE=101';
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
DROP SEQUENCE s4;
CALL show_slow_log();
sql_text
#
# Expect none of admin statements in the slow log (OFF,DEFAULT)
#
SET @@SESSION.log_slow_admin_statements=OFF;
SET log_slow_filter=DEFAULT;
TRUNCATE TABLE mysql.slow_log;
CREATE TABLE t1 (a INT);
CREATE INDEX t1a ON t1 (a);
DROP INDEX t1a ON t1;
DROP TABLE t1;
CREATE TABLE t2 (a INT);
ALTER TABLE t2 RENAME t2;
RENAME TABLE t2 TO t3;
DROP TABLE t3;
CREATE TABLE t4 (a INT);
PREPARE stmt FROM 'ALTER TABLE t4 MODIFY a INT DEFAULT 1';
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
DROP TABLE t4;
CREATE SEQUENCE s4;
ALTER SEQUENCE s4 MAXVALUE 100;
PREPARE stmt FROM 'ALTER SEQUENCE s4 MAXVALUE=101';
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
DROP SEQUENCE s4;
CALL show_slow_log();
sql_text
[slow] TRUNCATE TABLE mysql.slow_log
[slow] CREATE TABLE t1 (a INT)
[slow] DROP TABLE t1
[slow] CREATE TABLE t2 (a INT)
[slow] DROP TABLE t3
[slow] CREATE TABLE t4 (a INT)
[slow] PREPARE stmt FROM 'ALTER TABLE t4 MODIFY a INT DEFAULT 1'
[slow] DEALLOCATE PREPARE stmt
[slow] DROP TABLE t4
[slow] CREATE SEQUENCE s4
[slow] PREPARE stmt FROM 'ALTER SEQUENCE s4 MAXVALUE=101'
[slow] DEALLOCATE PREPARE stmt
[slow] DROP SEQUENCE s4
#
# Expect all admin statements in the slow log (GLOBAL OFF,LOCAL ON,DEFAULT)
# In the original implementation, this combination disabled slow log for admin commands.
# However, instead of this exception in GLOBAL vs LOCAL variable behaviour,
# we should make max_system_variables.log_slow_admin_statements=0
# prevent enabling globally suppressed logging by setting the session variable to ON.
#
SET @@GLOBAL.log_slow_admin_statements=OFF;
SET @@SESSION.log_slow_admin_statements=ON;
SET log_slow_filter=DEFAULT;
TRUNCATE TABLE mysql.slow_log;
CREATE TABLE t1 (a INT);
CREATE INDEX t1a ON t1 (a);
DROP INDEX t1a ON t1;
DROP TABLE t1;
CREATE TABLE t2 (a INT);
ALTER TABLE t2 RENAME t2;
RENAME TABLE t2 TO t3;
DROP TABLE t3;
CREATE TABLE t4 (a INT);
PREPARE stmt FROM 'ALTER TABLE t4 MODIFY a INT DEFAULT 1';
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
DROP TABLE t4;
CREATE SEQUENCE s4;
ALTER SEQUENCE s4 MAXVALUE 100;
PREPARE stmt FROM 'ALTER SEQUENCE s4 MAXVALUE=101';
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
DROP SEQUENCE s4;
CALL show_slow_log();
sql_text
[slow] TRUNCATE TABLE mysql.slow_log
[slow] CREATE TABLE t1 (a INT)
[slow] CREATE INDEX t1a ON t1 (a)
[slow] DROP INDEX t1a ON t1
[slow] DROP TABLE t1
[slow] CREATE TABLE t2 (a INT)
[slow] ALTER TABLE t2 RENAME t2
[slow] RENAME TABLE t2 TO t3
[slow] DROP TABLE t3
[slow] CREATE TABLE t4 (a INT)
[slow] PREPARE stmt FROM 'ALTER TABLE t4 MODIFY a INT DEFAULT 1'
[slow] ALTER TABLE t4 MODIFY a INT DEFAULT 1
[slow] DEALLOCATE PREPARE stmt
[slow] DROP TABLE t4
[slow] CREATE SEQUENCE s4
[slow] ALTER SEQUENCE s4 MAXVALUE 100
[slow] PREPARE stmt FROM 'ALTER SEQUENCE s4 MAXVALUE=101'
[slow] ALTER SEQUENCE s4 MAXVALUE=101
[slow] DEALLOCATE PREPARE stmt
[slow] DROP SEQUENCE s4
#
# Clean up
#
SET SESSION debug_dbug=@saved_dbug;
TRUNCATE mysql.slow_log;
SET @@global.slow_query_log= @org_slow_query_log;
SET @@global.log_output= @org_log_output;
SET @@global.log_slow_admin_statements= @org_log_slow_admin_statements;
DROP PROCEDURE show_slow_log;
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