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SELECT @@global.innodb_cmp_per_index_enabled;
@@global.innodb_cmp_per_index_enabled
0
SET GLOBAL innodb_stats_persistent=123;
ERROR 42000: Variable 'innodb_stats_persistent' can't be set to the value of '123'
SET GLOBAL innodb_stats_persistent='foo';
ERROR 42000: Variable 'innodb_stats_persistent' can't be set to the value of 'foo'
SET GLOBAL innodb_cmp_per_index_enabled=ON;
SELECT @@global.innodb_cmp_per_index_enabled;
@@global.innodb_cmp_per_index_enabled
1
SET GLOBAL innodb_cmp_per_index_enabled=ON;
SELECT @@global.innodb_cmp_per_index_enabled;
@@global.innodb_cmp_per_index_enabled
1
SET GLOBAL innodb_cmp_per_index_enabled=OFF;
SELECT @@global.innodb_cmp_per_index_enabled;
@@global.innodb_cmp_per_index_enabled
0
SET GLOBAL innodb_cmp_per_index_enabled=OFF;
SELECT @@global.innodb_cmp_per_index_enabled;
@@global.innodb_cmp_per_index_enabled
0
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;
database_name test
table_name t
index_name GEN_CLUST_INDEX
compress_ops 1
compress_ops_ok 1
compress_time 0
uncompress_ops 0
uncompress_time 0
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;
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;
database_name test
table_name t
index_name GEN_CLUST_INDEX
compress_ops 1
compress_ops_ok 1
compress_time 0
uncompress_ops 0
uncompress_time 0
SET GLOBAL innodb_cmp_per_index_enabled=ON;
SELECT * FROM information_schema.innodb_cmp_per_index;
database_name test
table_name t
index_name GEN_CLUST_INDEX
compress_ops 1
compress_ops_ok 1
compress_time 0
uncompress_ops 0
uncompress_time 0
DROP TABLE t;
SET GLOBAL innodb_cmp_per_index_enabled=default;
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