Quelle lock_insert_into_empty.result
Sprache: Lisp
CREATE TABLE t1 (a INT PRIMARY KEY) ENGINE=InnoDB;
CREATE TABLE t2 (a INT PRIMARY KEY) ENGINE=InnoDB;
INSERT INTO t1 VALUES(0);
BEGIN;
DELETE FROM t1;
INSERT INTO t2 VALUES(1),(1); ERROR23000: Duplicate entry '1' for key 'PRIMARY'
BEGIN;
SELECT * FROM t2 LOCK IN SHARE MODE;
a
connect con1,localhost,root,,; SET innodb_lock_wait_timeout=0;
INSERT INTO t2 VALUES(2); ERROR HY000: Lock wait timeout exceeded; try restarting transaction
connection default;
ROLLBACK;
connection con1;
INSERT INTO t2 VALUES(3);
COMMIT;
disconnect con1;
connection default;
SELECT * FROM t1;
a
SELECT * FROM t2;
a 3
DROP TABLE t1, t2;
#
# MDEV-24700 Assertion "lock not found"==0 in lock_table_x_unlock()
# SET FOREIGN_KEY_CHECKS=OFF;
CREATE TABLE t1 (id INT PRIMARY KEY, f INT REFERENCES nonexistent(x))
ENGINE=InnoDB; SET FOREIGN_KEY_CHECKS=ON;
BEGIN;
INSERT IGNORE INTO t1 VALUES (1,11);
Warnings:
Warning 1452 Cannot add or update a child row: a foreign key constraint fails (`test`.`t1`, CONSTRAINT `1` FOREIGN KEY (`f`) REFERENCES `nonexistent` (`x`)) REPLACE INTO t1 VALUES (1,12); ERROR23000: Cannot add or update a child row: a foreign key constraint fails (`test`.`t1`, CONSTRAINT `1` FOREIGN KEY (`f`) REFERENCES `nonexistent` (`x`))
COMMIT;
DROP TABLE t1;
#
# MDEV-25942 Assertion failed in trx_t::drop_table()
#
CREATE TABLE t1 (k INT PRIMARY KEY) ENGINE=InnoDB;
INSERT INTO t1 SET k=1;
START TRANSACTION;
INSERT INTO t1 SET k=2;
SELECT count(*) > 0 FROM mysql.innodb_index_stats lock in share mode;
count(*) > 0 1
connect con1,localhost,root,,test; SET innodb_lock_wait_timeout=0;
CREATE TABLE t2 (pk INT AUTO_INCREMENT PRIMARY KEY) ENGINE=InnoDB
AS SELECT k FROM t1; ERROR HY000: Lock wait timeout exceeded; try restarting transaction
disconnect con1;
connection default; SET innodb_lock_wait_timeout=default;
DROP TABLE t1;
DROP TABLE IF EXISTS t2;
Messung V0.5 in Prozent
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-10-08)
¤
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