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#
# Test information_schema.innodb_cmp_per_index
#
-- source include/have_innodb.inc
# Using innodb_log_compressed=0 leads to a larger number of page
# compressions, because page_cur_insert_rec_zip() will reorganize the
# page before attempting an insert followed by page compression and
# page_zip_compress_write_log_no_data().
if (`SELECT @@innodb_log_compressed_pages = 0`)
{
--skip Needs innodb_log_compressed_pages
}
# numbers read in this test depend on the page size
-- source include/have_innodb_16k.inc
# include/restart_mysqld.inc does not work in embedded mode
-- source include/not_embedded.inc
# ensure that all history gets purged on shutdown
SET GLOBAL innodb_purge_rseg_truncate_frequency=1;
SET GLOBAL innodb_fast_shutdown=0;
-- vertical_results
SET GLOBAL innodb_cmp_per_index_enabled=ON;
# reset any leftover stats from previous tests
-- disable_query_log
-- disable_result_log
SELECT * FROM information_schema.innodb_cmp_per_index_reset;
-- enable_result_log
-- enable_query_log
# see that the table is empty
SELECT * FROM information_schema.innodb_cmp_per_index;
# create a table that uses compression
CREATE TABLE t (
a INT,
b VARCHAR(512),
c VARCHAR(16),
PRIMARY KEY (a),
INDEX (b(512)),
INDEX (c(16))
) ENGINE=INNODB KEY_BLOCK_SIZE=2;
SELECT
database_name,
table_name,
index_name,
compress_ops,
compress_ops_ok,
uncompress_ops
FROM information_schema.innodb_cmp_per_index
ORDER BY 1, 2, 3;
# insert some data into it
BEGIN;
-- disable_query_log
let $i=128;
while ($i)
{
-- eval INSERT INTO t VALUES ($i, REPEAT('x', 512), NULL);
dec $i;
}
-- enable_query_log
COMMIT;
ALTER TABLE t DROP INDEX c;
GRANT USAGE ON *.* TO 'tuser01'@'localhost' IDENTIFIED BY 'cDJvI9s_Uq';
FLUSH PRIVILEGES;
-- connect (con1,localhost,tuser01,cDJvI9s_Uq,)
-- connection con1
-- error ER_SPECIFIC_ACCESS_DENIED_ERROR
SELECT * FROM information_schema.innodb_cmp_per_index;
-- connection default
-- disconnect con1
DROP USER 'tuser01'@'localhost';
SELECT
database_name,
table_name,
index_name,
CASE WHEN compress_ops=47 and @@innodb_compression_level IN (4,8,9) THEN 65
ELSE compress_ops END as compress_ops,
CASE WHEN compress_ops_ok=47 and @@innodb_compression_level IN (4,8,9) THEN 65
ELSE compress_ops_ok END as compress_ops_ok,
uncompress_ops
FROM information_schema.innodb_cmp_per_index
ORDER BY 1, 2, 3;
# restart mysqld and see that uncompress ops also gets increased when
# selecting from the table again
-- source include/restart_mysqld.inc
SET GLOBAL innodb_cmp_per_index_enabled=ON;
SELECT COUNT(*) FROM t;
SELECT
database_name,
table_name,
index_name,
compress_ops,
compress_ops_ok,
CASE WHEN uncompress_ops=6 and @@innodb_compression_level IN (4,8,9) THEN 9
ELSE uncompress_ops END as uncompress_ops
FROM information_schema.innodb_cmp_per_index
ORDER BY 1, 2, 3;
DROP TABLE t;
SET GLOBAL innodb_cmp_per_index_enabled=default;
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