File: insert-before-delete.result

package info (click to toggle)
mariadb-10.5 1%3A10.5.23-0%2Bdeb11u1
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 712,240 kB
  • sloc: ansic: 2,158,658; cpp: 1,843,101; asm: 297,745; perl: 59,967; sh: 53,869; pascal: 38,348; java: 33,919; yacc: 19,639; python: 11,119; xml: 10,126; sql: 10,027; ruby: 8,544; makefile: 6,343; cs: 2,866; lex: 1,205; javascript: 1,037; objc: 80; tcl: 73; awk: 46; php: 22; sed: 16
file content (35 lines) | stat: -rw-r--r-- 1,067 bytes parent folder | download
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
connect  pause_purge,localhost,root;
START TRANSACTION WITH CONSISTENT SNAPSHOT;
connection default;
CREATE TABLE t (pk int PRIMARY KEY, sk INT UNIQUE) ENGINE=InnoDB;
INSERT INTO t VALUES (10, 100);
connect  con1,localhost,root;
BEGIN;
SELECT * FROM t WHERE sk = 100 FOR UPDATE;
pk	sk
10	100
connect  con2,localhost,root;
SET DEBUG_SYNC="lock_wait_suspend_thread_enter SIGNAL insert_wait_started";
INSERT INTO t VALUES (5, 100) # trx 1;
connect  con3,localhost,root;
SET TRANSACTION ISOLATION LEVEL REPEATABLE READ;
SET DEBUG_SYNC="now WAIT_FOR insert_wait_started";
SET DEBUG_SYNC="lock_wait_suspend_thread_enter SIGNAL delete_started_waiting";
DELETE FROM t WHERE sk = 100 # trx 2;
connection con1;
SET DEBUG_SYNC="now WAIT_FOR delete_started_waiting";
DELETE FROM t WHERE sk=100;
COMMIT;
disconnect con1;
connection con2;
disconnect con2;
connection con3;
ERROR 40001: Deadlock found when trying to get lock; try restarting transaction
disconnect con3;
connection default;
SELECT * FROM t;
pk	sk
5	100
disconnect pause_purge;
SET DEBUG_SYNC="RESET";
DROP TABLE t;