# MDEV-10709 Expressions as parameters to Dynamic SQL
#
#
# Using a simple expressions as an EXECUTE parameter
#
PREPARE stmt FROM 'SELECT ? FROM DUAL';
EXECUTE stmt USING 10;
?
10
DEALLOCATE PREPARE stmt;
PREPARE stmt FROM 'SELECT ? FROM DUAL';
EXECUTE stmt USING TO_BASE64('xxx');
?
eHh4
DEALLOCATE PREPARE stmt;
PREPARE stmt FROM 'SELECT ?+? FROM DUAL';
EXECUTE stmt USING 10, 10 + 10;
?+?
30
DEALLOCATE PREPARE stmt;
PREPARE stmt FROM 'SELECT CONCAT(?,?) FROM DUAL';
EXECUTE stmt USING 'xxx', CONCAT('yyy','zzz');
CONCAT(?,?)
xxxyyyzzz
DEALLOCATE PREPARE stmt;
#
# Testing disallowed expressions in USING
#
PREPARE stmt FROM 'SELECT ? FROM DUAL';
EXECUTE stmt USING (SELECT 1);
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'SELECT 1)' at line 1
DEALLOCATE PREPARE stmt;
CREATE FUNCTION f1() RETURNS VARCHAR(10) RETURN 'test';
PREPARE stmt FROM 'SELECT ? FROM DUAL';
EXECUTE stmt USING f1();
ERROR 42000: EXECUTE..USING does not support subqueries or stored functions
DEALLOCATE PREPARE stmt;
DROP FUNCTION f1;
#
# Testing erroneous expressions in USING
#
PREPARE stmt FROM 'SELECT ?';
EXECUTE stmt USING _latin1'a'=_latin2'a';
ERROR HY000: Illegal mix of collations (latin1_swedish_ci,COERCIBLE) and (latin2_general_ci,COERCIBLE) for operation '='
DEALLOCATE PREPARE stmt;
PREPARE stmt FROM 'SELECT ?';
EXECUTE stmt USING ROW(1,2);
ERROR 21000: Operand should contain 1 column(s)
DEALLOCATE PREPARE stmt;
#
# Creating tables from EXECUTE parameters
#
PREPARE stmt FROM 'CREATE TABLE t1 AS SELECT ? AS c1 FROM DUAL';
EXECUTE stmt USING 10;
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`c1` bigint(21) NOT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
DROP TABLE t1;
EXECUTE stmt USING 10.123;
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`c1` decimal(5,3) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
DROP TABLE t1;
EXECUTE stmt USING 10.123e0;
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`c1` double NOT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
DROP TABLE t1;
EXECUTE stmt USING CURRENT_DATE;
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`c1` date DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
DROP TABLE t1;
EXECUTE stmt USING CURRENT_TIMESTAMP;
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`c1` datetime DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
DROP TABLE t1;
EXECUTE stmt USING CURRENT_TIMESTAMP(3);
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`c1` datetime(3) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
DROP TABLE t1;
EXECUTE stmt USING CURRENT_TIMESTAMP(6);
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`c1` datetime(6) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
DROP TABLE t1;
EXECUTE stmt USING CURRENT_TIME;
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`c1` time DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
DROP TABLE t1;
EXECUTE stmt USING CURRENT_TIME(3);
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`c1` time(3) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
DROP TABLE t1;
EXECUTE stmt USING CURRENT_TIME(6);
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`c1` time(6) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
DROP TABLE t1;
DEALLOCATE PREPARE stmt;
#
# Using a user variable as an EXECUTE..USING out parameter
#
CREATE PROCEDURE p1(OUT a INT)
BEGIN
SET a:= 10;
END;
/
SET @a=1;
CALL p1(@a);
SELECT @a;
@a
10
SET @a=2;
PREPARE stmt FROM 'CALL p1(?)';
EXECUTE stmt USING @a;
SELECT @a;
@a
10
DROP PROCEDURE p1;
#
# Using an SP variable as an EXECUTE..USING out parameter
#
CREATE PROCEDURE p1 (OUT a INT)
BEGIN
SET a=10;
END;
/
CREATE PROCEDURE p2 (OUT a INT)
BEGIN
PREPARE stmt FROM 'CALL p1(?)';
EXECUTE stmt USING a;
END;
/
SET @a= 1;
CALL p2(@a);
SELECT @a;
@a
10
DROP PROCEDURE p2;
DROP PROCEDURE p1;
#
# Testing re-prepare on a table metadata update between PREPARE and EXECUTE
#
CREATE TABLE t1 (a INT);
CREATE PROCEDURE p1(a INT)
BEGIN
INSERT INTO t1 VALUES (a);
END;
/
PREPARE stmt FROM 'CALL p1(?)';
EXECUTE stmt USING 10;
SELECT * FROM t1;
a
10
CREATE TRIGGER tr1 BEFORE INSERT ON t1 FOR EACH ROW SET NEW.a=NEW.a+1;
EXECUTE stmt USING 20;
SELECT * FROM t1;
a
10
21
DEALLOCATE PREPARE stmt;
DROP PROCEDURE p1;
DROP TABLE t1;
#
# End of MDEV-10709 Expressions as parameters to Dynamic SQL
