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--source include/big_test.inc
DELIMITER |;
CREATE PROCEDURE prepare_data(IN val INT)
BEGIN
DECLARE i INT DEFAULT 1;
WHILE i < val DO
INSERT INTO t1 (b) VALUES (i);
SET i = i + 1;
END WHILE;
END|
DELIMITER ;|
CREATE TABLE t1 (a INT NOT NULL PRIMARY KEY AUTO_INCREMENT, b INT);
SET GLOBAL innodb_monitor_enable = module_sampling;
SELECT NAME,COUNT FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE NAME='sampled_pages_read';
CALL prepare_data(30000);
ANALYZE TABLE t1 UPDATE HISTOGRAM ON b WITH 50 BUCKETS;
SELECT SCHEMA_NAME, TABLE_NAME, COLUMN_NAME FROM information_schema.column_statistics WHERE COLUMN_NAME = 'b';
DROP TABLE t1;
--replace_regex /[0-9]+/XX/
SELECT NAME,COUNT FROM INFORMATION_SCHEMA.INNODB_METRICS WHERE SUBSYSTEM='sampling';
SET GLOBAL innodb_monitor_disable = module_sampling;
SET GLOBAL innodb_monitor_reset_all = "module_sampling";
--echo #
--echo # Cleanup
--echo #
SET GLOBAL innodb_monitor_enable = default;
SET GLOBAL innodb_monitor_disable = default;
SET GLOBAL innodb_monitor_reset_all = default;
DROP PROCEDURE prepare_data;
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