-- source include/have_innodb.inc
# CREATE TABLE ... KEY_BLOCK_SIZE=8; does not work with page size = 4k
-- source include/have_innodb_16k.inc

# Check the default value
SELECT @@global.innodb_cmp_per_index_enabled;

# should be a boolean
-- error ER_WRONG_VALUE_FOR_VAR
SET GLOBAL innodb_stats_persistent=123;

-- error ER_WRONG_VALUE_FOR_VAR
SET GLOBAL innodb_stats_persistent='foo';

# Check that changing value works and that setting the same value again
# is as expected
SET GLOBAL innodb_cmp_per_index_enabled=ON;
SELECT @@global.innodb_cmp_per_index_enabled;

SET GLOBAL innodb_cmp_per_index_enabled=ON;
SELECT @@global.innodb_cmp_per_index_enabled;

SET GLOBAL innodb_cmp_per_index_enabled=OFF;
SELECT @@global.innodb_cmp_per_index_enabled;

SET GLOBAL innodb_cmp_per_index_enabled=OFF;
SELECT @@global.innodb_cmp_per_index_enabled;

-- vertical_results

# Check that enabling after being disabled resets the stats

SET GLOBAL innodb_cmp_per_index_enabled=ON;

CREATE TABLE t (a INT) ENGINE=INNODB KEY_BLOCK_SIZE=8;

INSERT INTO t VALUES (1);

SELECT * FROM information_schema.innodb_cmp_per_index;

SET GLOBAL innodb_cmp_per_index_enabled=OFF;
SET GLOBAL innodb_cmp_per_index_enabled=ON;

SELECT * FROM information_schema.innodb_cmp_per_index;

DROP TABLE t;

# Check that enabling after being enabled does not reset the stats

SET GLOBAL innodb_cmp_per_index_enabled=ON;

CREATE TABLE t (a INT) ENGINE=INNODB KEY_BLOCK_SIZE=8;

INSERT INTO t VALUES (1);

SELECT * FROM information_schema.innodb_cmp_per_index;

SET GLOBAL innodb_cmp_per_index_enabled=ON;

SELECT * FROM information_schema.innodb_cmp_per_index;

DROP TABLE t;

#

SET GLOBAL innodb_cmp_per_index_enabled=default;