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|
drop table if exists t1,t2;
drop procedure if exists p1;
#
#MDEV-6985: MariaDB crashes on stored procedure call
#
CREATE TABLE `t1` (
`ID` int(11) NOT NULL,
PRIMARY KEY (`ID`)
) ENGINE=InnoDB;
CREATE TABLE `t2` (
`ID` int(11) NOT NULL,
`DATE` datetime DEFAULT NULL,
PRIMARY KEY (`ID`)
) ENGINE=InnoDB;
CREATE PROCEDURE `p1`()
BEGIN
DECLARE _mySelect CURSOR FOR
SELECT DISTINCT t1.ID
FROM t1
LEFT JOIN t2 AS t2 ON
t2.ID = t1.ID
AND t2.DATE = (
SELECT MAX(T3.DATE) FROM t2 AS T3 WHERE T3.ID = t2.ID AND T3.DATE<=NOW()
)
WHERE t1.ID = 1;
OPEN _mySelect;
CLOSE _mySelect;
END ;;
CALL p1();
CALL p1();
drop procedure p1;
drop table t1,t2;
#
# BUG 16041903: CONTINUE HANDLER NOT INVOKED
# IN A STORED FUNCTION AFTER A LOCK WAIT TIMEOUT
#
# Save and set lock wait timeout
SET @lock_wait_timeout_saved= @@lock_wait_timeout;
SET @innodb_lock_wait_timeout_saved= @@innodb_lock_wait_timeout;
SET @@lock_wait_timeout= 1;
SET @@innodb_lock_wait_timeout= 1;
# Create a function with exit handler:
CREATE FUNCTION f1() RETURNS VARCHAR(20)
BEGIN
DECLARE EXIT HANDLER FOR SQLSTATE '42S02' RETURN 'No such table';
INSERT INTO no_such_table VALUES (1);
END//
# Create a function calling f1():
CREATE FUNCTION f2() RETURNS VARCHAR(20)
BEGIN
RETURN f1();
END//
# Create a function provoking deadlock:
CREATE FUNCTION f3() RETURNS VARCHAR(20)
BEGIN
UPDATE t1 SET i= 1 WHERE i= 1;
RETURN 'Will never get here';
END//
# Create a function calling f3, to create
# a deadlock indirectly:
CREATE FUNCTION f4() RETURNS VARCHAR(20)
BEGIN
RETURN f3();
END//
# Open another connection, create and initialize a table
# to be used for provoking deadlock, put a lock on the table:
CREATE TABLE t1 (i INT) ENGINE=InnoDB;
INSERT INTO t1 VALUES (1);
SET AUTOCOMMIT= 0;
UPDATE t1 SET i=1 WHERE i=1;
# On the default connection, do an update to provoke a
# deadlock, then call the function with handler. This case
# fails without the patch (with error ER_NO_SUCH_TABLE):
SET AUTOCOMMIT= 0;
UPDATE t1 SET i=1 WHERE i=1;
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
SELECT f1() AS 'f1():';
f1():
No such table
# Provoke another deadlock, then call the function with
# handler indirectly. This case fails without the patch
# (with error ER_NO_SUCH_TABLE):
UPDATE t1 SET i= 1 WHERE i= 1;
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
SELECT f2() AS 'f2():';
f2():
No such table
# Provoke yet another deadlock, but now from within a function,
# then call the function with handler. This succeeds even
# without the patch because is_fatal_sub_stmt_error is reset
# in restore_sub_stmt after the failing function has been
# executed. The test case is included anyway for better coverage:
SELECT f3() AS 'f3():';
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
SELECT f1() AS 'f1():';
f1():
No such table
# Provoke yet another deadlock, but now from within a function,
# calling another function, then call the function with handler.
# This succeeds even without the patch because
# is_fatal_sub_stmt_error is reset in restore_sub_stmt after
# the failing function has been executed. The test case is
# included anyway for better coverage:
SELECT f4() AS 'f4():';
ERROR HY000: Lock wait timeout exceeded; try restarting transaction
SELECT f1() AS 'f1():';
f1():
No such table
# Disconnect, drop functions and table:
DROP FUNCTION f4;
DROP FUNCTION f3;
DROP FUNCTION f2;
DROP FUNCTION f1;
DROP TABLE t1;
# Reset lock wait timeouts
SET @@lock_wait_timeout= @lock_wait_timeout_saved;
SET @@innodb_lock_wait_timeout= @innodb_lock_wait_timeout_saved;
#
# BUG 16041903: End of test case
#
|
