Spracherkennung für: .test vermutete Sprache: SQL {SQL[132] VDM[42] Lisp[40]} [Methode: maximale Elemente, drei Dimensionen]
--source include/have_innodb.inc
#
#
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.
#
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);
#
CREATE TABLE innodb_table_monitor (a
int) ENGINE=INNODB;
# wait more than
1 minute
and observe the mysqld output
#
DROP TABLE innodb_table_monitor;
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;
[Dauer der Verarbeitung: 0.18 Sekunden, vorverarbeitet 2026-10-08]