mariadb/mysql-test/suite/innodb/t/innodb_stats_persistent.test

--source include/have_innodb.inc
--source include/have_sequence.inc

SET @saved_include_delete_marked = @@GLOBAL.innodb_stats_include_delete_marked;
SET GLOBAL innodb_stats_include_delete_marked = ON;
SET @saved_traditional = @@GLOBAL.innodb_stats_traditional;
SET GLOBAL innodb_stats_traditional=false;
SET @saved_modified_counter = @@GLOBAL.innodb_stats_modified_counter;
SET GLOBAL innodb_stats_modified_counter=1;

CREATE TABLE t1 (id SERIAL, val INT UNSIGNED NOT NULL, KEY(val))
ENGINE=INNODB STATS_PERSISTENT=1,STATS_AUTO_RECALC=1;
CREATE TABLE t2 LIKE t1;

INSERT INTO t1 (val) SELECT 4 FROM seq_1_to_16;
SET STATEMENT use_stat_tables=never FOR
ANALYZE TABLE t1;

connect(con1, localhost, root,,);
START TRANSACTION;
DELETE FROM t1;
send SELECT COUNT(*) FROM t1;

connection default;
--echo # With innodb_stats_include_delete_marked=ON,
--echo # DELETE must not affect statistics before COMMIT.
EXPLAIN SELECT * FROM t1 WHERE val=4;

connection con1;
reap;
ROLLBACK;
SELECT COUNT(*) FROM t1;
EXPLAIN SELECT * FROM t1 WHERE val=4;

BEGIN;
DELETE FROM t1;
COMMIT;
SELECT COUNT(*) FROM t1;

connection default;
BEGIN;
INSERT INTO t2 (val) SELECT 4 FROM seq_1_to_16;

--echo # The INSERT will show up before COMMIT.
EXPLAIN SELECT * FROM t2 WHERE val=4;
SELECT COUNT(*) FROM t2;
--echo # The ROLLBACK of the INSERT must affect the statistics.
ROLLBACK;
SELECT COUNT(*) FROM t2;

connection con1;
EXPLAIN SELECT * FROM t2 WHERE val=4;
SET GLOBAL innodb_max_purge_lag_wait=0;
--echo # After COMMIT and purge, the DELETE must show up.
EXPLAIN SELECT * FROM t1 WHERE val=4;

SET GLOBAL innodb_stats_include_delete_marked = OFF;
BEGIN;
INSERT INTO t1 (val) SELECT 4 FROM seq_1_to_16;
EXPLAIN SELECT * FROM t1 WHERE val=4;
ROLLBACK;
EXPLAIN SELECT * FROM t1 WHERE val=4;
BEGIN;
INSERT INTO t1 (val) SELECT 4 FROM seq_1_to_16;
COMMIT;
EXPLAIN SELECT * FROM t1 WHERE val=4;
BEGIN;
DELETE FROM t1;
SELECT COUNT(*) FROM t1;
--echo # With innodb_stats_include_delete_marked=OFF,
--echo # DELETE must affect statistics even before COMMIT.
--echo # However, if there was a WHERE condition,
--echo # ha_innobase::records_in_range() would count the delete-marked records.
EXPLAIN SELECT * FROM t1;
ROLLBACK;
EXPLAIN SELECT * FROM t1;
SELECT COUNT(*) FROM t1;
disconnect con1;

connection default;

DROP TABLE t1,t2;
SET GLOBAL innodb_stats_include_delete_marked = @saved_include_delete_marked;
SET GLOBAL innodb_stats_traditional = @saved_traditional;
SET GLOBAL innodb_stats_modified_counter = @saved_modified_counter;

#
# Bug#12429573 TIMESTAMP COLUMN OF INNODB.INDEX_STATS ARE NOT UPDATED
# WHEN RE-RUNNING ANALYZE
#
CREATE TABLE bug12429573 (i INTEGER PRIMARY KEY, j INTEGER, KEY(j))
ENGINE=INNODB STATS_PERSISTENT=1;

SET STATEMENT use_stat_tables=never FOR
ANALYZE TABLE bug12429573;

# Cannot check the exact timestamp here because it is always different
# but at least check that both timestamps in innodb_table_stats and in
# innodb_index_stats have been updated to the same value. If the bug is
# present this check will fail.

--disable_cursor_protocol
SELECT last_update INTO @last FROM mysql.innodb_table_stats
WHERE table_name = 'bug12429573';
--enable_cursor_protocol
SELECT * FROM mysql.innodb_index_stats
WHERE table_name = 'bug12429573' AND last_update!=@last;

# The first ANALYZE would insert timestamp e.g. 17:23:39 in both
# innodb_table_stats and innodb_index_stats. The bug is that the second
# ANALYZE only updates the timestamp in innodb_table_stats. In order to
# check if the timestamp in innodb_index_stats has really been updated we
# need it to be different from the previous one (17:23:39) with at least
# one second.
-- sleep 1

SET STATEMENT use_stat_tables=never FOR
ANALYZE TABLE bug12429573;

SELECT * FROM mysql.innodb_table_stats
WHERE table_name = 'bug12429573' AND last_update=@last;
SELECT * FROM mysql.innodb_index_stats
WHERE table_name = 'bug12429573' AND last_update=@last;

DROP TABLE bug12429573;