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--source include/have_innodb.inc
--source include/have_partition.inc
#
# Check and select innodb lock type
#
set global innodb_table_locks=1;
select @@innodb_table_locks;
#
# Testing of explicit table locks with enforced table locks
#
set @@innodb_table_locks=1;
connect (con1,localhost,root,,);
create table t1 (id integer, x integer) engine=INNODB;
insert into t1 values(0, 0);
set autocommit=0;
SELECT * from t1 where id = 0 FOR UPDATE;
connect (con2,localhost,root,,);
set autocommit=0;
# The following statement should hang because con1 is locking the page
--send
lock table t1 write;
--sleep 2
connection con1;
update t1 set x=1 where id = 0;
select * from t1;
commit;
connection con2;
reap;
update t1 set x=2 where id = 0;
commit;
unlock tables;
connection con1;
select * from t1;
commit;
drop table t1;
--echo #
--echo # Old lock method (where LOCK TABLE was ignored by InnoDB) no longer
--echo # works when LOCK TABLE ... WRITE is used due to fix for bugs #46272
--echo # "MySQL 5.4.4, new MDL: unnecessary and bug #37346 "innodb does not
--echo # detect deadlock between update and alter table".
--echo # After WL#6671 "Improve scalability by not using thr_lock.c locks
--echo # for InnoDB tables" was implemented it no longer works for LOCK TABLES
--echo # ,,, READ as well.
--echo # LOCK TABLES locks are now completely handled by MDL subsystem.
--echo #
set @@innodb_table_locks=0;
create table t1 (id integer primary key, x integer) engine=INNODB;
insert into t1 values(0, 0),(1,1),(2,2);
commit;
SELECT * from t1 where id = 0 FOR UPDATE;
connection con2;
set autocommit=0;
set @@innodb_table_locks=0;
--echo # The following statement should block because SQL-level lock
--echo # is taken on t1 which will wait until concurrent transaction
--echo # is commited.
--echo # Sending:
--send lock table t1 write;
connection con1;
--echo # Wait until LOCK TABLE is blocked on SQL-level lock.
let $wait_condition=
select count(*) = 1 from information_schema.processlist
where state = "Waiting for table metadata lock" and
info = "lock table t1 write";
--source include/wait_condition.inc
--echo # We should be able to do UPDATEs and SELECTs within transaction.
update t1 set x=1 where id = 0;
select * from t1;
--echo # Unblock LOCK TABLE.
commit;
connection con2;
--echo # Reap LOCK TABLE.
--reap
unlock tables;
connection con1;
select * from t1 where id = 0 for update;
connection con2;
--echo # The following statement should block because SQL-level lock
--echo # is taken on t1 which will wait until concurrent transaction
--echo # is commited.
--echo # Sending:
--send lock table t1 read;
connection con1;
--echo # Wait until LOCK TABLE is blocked on SQL-level lock.
let $wait_condition=
select count(*) = 1 from information_schema.processlist
where state = "Waiting for table metadata lock" and
info = "lock table t1 read";
--source include/wait_condition.inc
--echo # We should be able to do UPDATEs and SELECTs within transaction.
update t1 set x=2 where id = 0;
select * from t1;
--echo # Unblock LOCK TABLE.
commit;
connection con2;
--echo # Reap LOCK TABLE.
--reap
unlock tables;
connection default;
drop table t1;
# End of 4.1 tests
--echo #
--echo #Bug#12842206 INNODB LOCKING REGRESSION FOR INSERT IGNORE
--echo #fixed by re-fixing Bug#7975
--echo #aka Bug#11759688 52020: InnoDB can still deadlock on just INSERT...
--echo #
connection default;
CREATE TABLE t1 (a INT PRIMARY KEY, b INT NOT NULL) ENGINE=InnoDB;
INSERT INTO t1 VALUES(3,1);
BEGIN;
# this used to wrongly acquire an X lock; now it takes an S lock
INSERT IGNORE INTO t1 VALUES(3,14);
connection con1;
BEGIN;
# this used to wrongly acquire an X lock; now it takes an S lock
INSERT IGNORE INTO t1 VALUES(3,23);
--send
SELECT * FROM t1 FOR UPDATE;
connection con2;
# Check that the above SELECT is blocked
let $wait_condition=
select count(*) = 1 from information_schema.processlist
where state = 'Sending data' and
info = 'SELECT * FROM t1 FOR UPDATE';
--source include/wait_condition.inc
disconnect con2;
connection default;
COMMIT;
connection con1;
reap;
COMMIT;
connection default;
DROP TABLE t1;
--echo #
--echo # MDEV-11080 InnoDB: Failing assertion:
--echo # table->n_waiting_or_granted_auto_inc_locks > 0
--echo #
CREATE TABLE t1 (pk INTEGER AUTO_INCREMENT PRIMARY KEY) ENGINE=InnoDB;
INSERT INTO t1 VALUES (NULL),(NULL);
CREATE TABLE t2 LIKE t1;
BEGIN;
connection con1;
BEGIN;
DELETE FROM t2;
connection default;
--send LOCK TABLE t2 READ;
connection con1;
SET innodb_lock_wait_timeout= 1, lock_wait_timeout= 2;
--error 0,ER_LOCK_WAIT_TIMEOUT
INSERT INTO t2 SELECT * FROM t1;
COMMIT;
connection default;
reap;
UNLOCK TABLES;
DROP TABLE t1, t2;
--echo #
--echo # MDEV-16709 InnoDB: Error: trx already had an AUTO-INC lock
--echo #
CREATE TABLE t1 (pk INT AUTO_INCREMENT PRIMARY KEY) ENGINE=InnoDB
PARTITION BY key (pk) PARTITIONS 2;
# MDEV-515 takes X-lock on the table for the first insert.
# So concurrent insert won't happen on the table
INSERT INTO t1 VALUES(100);
INSERT INTO t1 VALUES(101);
CREATE TABLE t2 (a INT) ENGINE=InnoDB;
INSERT INTO t2 VALUES (1),(2),(3),(4),(5),(6);
CREATE TABLE t3 (b INT) ENGINE=InnoDB;
INSERT INTO t3 VALUES (1),(2),(3),(4),(5),(6),(7),(8),(9);
connection con1;
send INSERT t1 SELECT NULL FROM t2;
connection default;
--error 0,ER_DUP_ENTRY,ER_LOCK_DEADLOCK
INSERT t1 SELECT NULL FROM t3;
connection con1;
--error 0,ER_DUP_ENTRY,ER_LOCK_DEADLOCK
reap;
disconnect con1;
connection default;
DROP TABLE t1, t2, t3;
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