File: insert-before-delete.result

package info (click to toggle)
mariadb 1%3A11.8.3-1
  • links: PTS, VCS
  • area: main
  • in suites: sid
  • size: 772,520 kB
  • sloc: ansic: 2,414,714; cpp: 1,791,394; asm: 381,336; perl: 62,905; sh: 49,647; pascal: 40,897; java: 39,363; python: 20,791; yacc: 20,432; sql: 17,907; xml: 12,344; ruby: 8,544; cs: 6,542; makefile: 6,145; ada: 1,879; lex: 1,193; javascript: 996; objc: 80; tcl: 73; awk: 46; php: 22
file content (35 lines) | stat: -rw-r--r-- 1,037 bytes parent folder | download | duplicates (4) 
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_start 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_start 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;