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#
# http://bugs.mysql.com/53046
# dict_update_statistics_low can still be run concurrently on same table
#
# This is a symbolic test, it would not fail if the bug is present.
# Rather those SQL commands have been used during manual testing under
# UNIV_DEBUG & UNIV_SYNC_DEBUG to test all changed codepaths for locking
# correctness.
#
-- source include/have_innodb.inc
CREATE TABLE bug53046_1 (c1 INT PRIMARY KEY) ENGINE=INNODB;
CREATE TABLE bug53046_2 (c2 INT PRIMARY KEY,
FOREIGN KEY (c2) REFERENCES bug53046_1(c1)
ON UPDATE CASCADE ON DELETE CASCADE) ENGINE=INNODB;
INSERT INTO bug53046_1 VALUES (1);
let $i = 5;
while ($i) {
eval INSERT INTO bug53046_1 SELECT c1+(SELECT MAX(c1) FROM bug53046_1)
FROM bug53046_1;
dec $i;
}
INSERT INTO bug53046_2 VALUES (1), (2);
ANALYZE TABLE bug53046_1;
# this prints create time and other nondeterministic data
-- disable_result_log
SHOW TABLE STATUS LIKE 'bug53046_1';
-- enable_result_log
UPDATE bug53046_1 SET c1 = c1 - 1;
DELETE FROM bug53046_1;
INSERT INTO bug53046_1 VALUES (1);
INSERT INTO bug53046_2 VALUES (1);
TRUNCATE TABLE bug53046_2;
DROP TABLE bug53046_2;
DROP TABLE bug53046_1;