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MDEV-10585 EXECUTE IMMEDIATE statement
This commit is contained in:
Alexander Barkov
@@ -4289,5 +4289,218 @@ DROP TABLE t1;
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# End of MDEV-10709 Expressions as parameters to Dynamic SQL
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#
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#
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# MDEV-10585 EXECUTE IMMEDIATE statement
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#
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EXECUTE IMMEDIATE 'SELECT 1 AS a';
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a
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1
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SET @a=10;
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EXECUTE IMMEDIATE 'SELECT ? AS a' USING @a;
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a
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10
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EXECUTE IMMEDIATE 'SELECT ? AS a' USING 20;
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a
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20
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#
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# Erroneous queries
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#
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EXECUTE IMMEDIATE 'xxx';
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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 'xxx' at line 1
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EXECUTE IMMEDIATE 'SELECT 1' USING @a;
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ERROR HY000: Incorrect arguments to EXECUTE
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EXECUTE IMMEDIATE 'SELECT ?';
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ERROR HY000: Incorrect arguments to EXECUTE
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EXECUTE IMMEDIATE 'EXECUTE IMMEDIATE "SELECT 1"';
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ERROR HY000: This command is not supported in the prepared statement protocol yet
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EXECUTE IMMEDIATE 'PREPARE stmt FROM "SELECT 1"';
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ERROR HY000: This command is not supported in the prepared statement protocol yet
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EXECUTE IMMEDIATE 'EXECUTE stmt';
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ERROR HY000: This command is not supported in the prepared statement protocol yet
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EXECUTE IMMEDIATE 'DEALLOCATE PREPARE stmt';
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ERROR HY000: This command is not supported in the prepared statement protocol yet
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EXECUTE IMMEDIATE 'SELECT ?' USING _latin1'a'=_latin2'a';
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ERROR HY000: Illegal mix of collations (latin1_swedish_ci,COERCIBLE) and (latin2_general_ci,COERCIBLE) for operation '='
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EXECUTE IMMEDIATE 'SELECT ?' USING ROW(1,2);
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ERROR 21000: Operand should contain 1 column(s)
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#
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# Testing disallowed expressions in USING
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#
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EXECUTE IMMEDIATE 'SELECT ? FROM DUAL' USING (SELECT 1);
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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
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CREATE FUNCTION f1() RETURNS VARCHAR(10) RETURN 'test';
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EXECUTE IMMEDIATE 'SELECT ? FROM DUAL' USING f1();
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ERROR 42000: EXECUTE..USING does not support subqueries or stored functions
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DROP FUNCTION f1;
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#
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# DDL
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#
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EXECUTE IMMEDIATE 'CREATE TABLE t1 (a INT)';
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EXECUTE IMMEDIATE 'SHOW CREATE TABLE t1';
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Table Create Table
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t1 CREATE TABLE `t1` (
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`a` int(11) DEFAULT NULL
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) ENGINE=MyISAM DEFAULT CHARSET=latin1
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EXECUTE IMMEDIATE 'DROP TABLE t1';
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SET @stmt= 'CREATE TABLE t1 (a INT)';
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EXECUTE IMMEDIATE @stmt;
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SET @stmt= 'SHOW CREATE TABLE t1';
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EXECUTE IMMEDIATE @stmt;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`a` int(11) DEFAULT NULL
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) ENGINE=MyISAM DEFAULT CHARSET=latin1
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SET @stmt= 'DROP TABLE t1';
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EXECUTE IMMEDIATE @stmt;
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#
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# DDL with parameters
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#
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SET @a= 10, @b= 10.1, @c= 10e0, @d='str';
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EXECUTE IMMEDIATE
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'CREATE TABLE t1 AS SELECT ? AS a,? AS b,? AS c,? AS d'
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USING @a,@b,@c,@d;
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`a` bigint(21) NOT NULL,
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`b` decimal(3,1) DEFAULT NULL,
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`c` double NOT NULL,
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`d` varchar(3) NOT NULL
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) ENGINE=MyISAM DEFAULT CHARSET=latin1
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DROP TABLE t1;
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EXECUTE IMMEDIATE
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'CREATE TABLE t1 AS SELECT ? AS a,? AS b,? AS c,? AS d'
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USING 10, 10.1, 10e0, 'str';
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`a` bigint(21) NOT NULL,
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`b` decimal(3,1) DEFAULT NULL,
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`c` double NOT NULL,
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`d` varchar(3) NOT NULL
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) ENGINE=MyISAM DEFAULT CHARSET=latin1
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DROP TABLE t1;
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EXECUTE IMMEDIATE
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'CREATE TABLE t1 AS SELECT ? AS t1,? AS t2, ? AS d1,? AS dt1, ? AS dt2'
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USING TIME'10:20:30',
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TIME'10:20:30.123',
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DATE'2001-01-01',
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TIMESTAMP'2001-01-01 10:20:30',
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TIMESTAMP'2001-01-01 10:20:30.123';
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SHOW CREATE TABLE t1;
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Table Create Table
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t1 CREATE TABLE `t1` (
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`t1` time DEFAULT NULL,
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`t2` time(3) DEFAULT NULL,
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`d1` date DEFAULT NULL,
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`dt1` datetime DEFAULT NULL,
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`dt2` datetime(3) DEFAULT NULL
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) ENGINE=MyISAM DEFAULT CHARSET=latin1
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DROP TABLE t1;
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#
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# Using a user variable as an EXECUTE IMMEDIATE..USING out parameter
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#
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CREATE PROCEDURE p1(OUT a INT)
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BEGIN
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SET a:= 10;
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END;
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/
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SET @a=1;
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CALL p1(@a);
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SELECT @a;
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@a
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10
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SET @a=2;
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EXECUTE IMMEDIATE 'CALL p1(?)' USING @a;
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SELECT @a;
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@a
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10
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DROP PROCEDURE p1;
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#
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# Using an SP variable as an EXECUTE IMMEDIATE..USING out parameter
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#
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CREATE PROCEDURE p1 (OUT a INT)
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BEGIN
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SET a=10;
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END;
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/
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CREATE PROCEDURE p2 (OUT a INT)
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BEGIN
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EXECUTE IMMEDIATE 'CALL p1(?)' USING a;
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END;
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/
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SET @a= 1;
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CALL p2(@a);
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SELECT @a;
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@a
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10
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DROP PROCEDURE p2;
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DROP PROCEDURE p1;
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#
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# Changing user variables
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#
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SET @a=10;
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EXECUTE IMMEDIATE 'SET @a=@a+1';
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SELECT @a;
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@a
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11
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#
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# SET STATEMENT
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#
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SET @@max_sort_length=1024;
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EXECUTE IMMEDIATE 'SET STATEMENT max_sort_length=1025 FOR SELECT @@max_sort_length';
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@@max_sort_length
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1025
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SELECT @@max_sort_length;
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@@max_sort_length
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1024
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SET @@max_sort_length=DEFAULT;
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#
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# Similar to prepared EXECUTE, IMMEDIATE is not allowed in stored functions
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#
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CREATE FUNCTION f1() RETURNS INT
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BEGIN
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EXECUTE IMMEDIATE 'DO 1';
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RETURN 1;
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END;
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$$
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ERROR 0A000: Dynamic SQL is not allowed in stored function or trigger
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#
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# Status variables
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#
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CREATE FUNCTION get_status_var(name TEXT) RETURNS INT
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RETURN (SELECT CAST(VARIABLE_VALUE AS INT)
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FROM INFORMATION_SCHEMA.SESSION_STATUS
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WHERE VARIABLE_NAME=name);
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CREATE PROCEDURE test_status_var(name TEXT)
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BEGIN
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SET @cnt0=get_status_var(name);
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EXECUTE IMMEDIATE 'DO 1';
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SET @cnt1=get_status_var(name);
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SELECT @cnt1-@cnt0 AS increment;
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END;
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$$
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# Note, EXECUTE IMMEDIATE does not increment COM_EXECUTE_SQL
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# It increments COM_EXECUTE_IMMEDIATE instead.
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CALL test_status_var('COM_EXECUTE_SQL');
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increment
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0
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CALL test_status_var('COM_EXECUTE_IMMEDIATE');
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increment
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1
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CALL test_status_var('COM_STMT_PREPARE');
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increment
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1
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CALL test_status_var('COM_STMT_EXECUTE');
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increment
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1
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CALL test_status_var('COM_STMT_CLOSE');
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increment
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1
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DROP PROCEDURE test_status_var;
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DROP FUNCTION get_status_var;
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#
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# End of MDEV-10585 EXECUTE IMMEDIATE statement
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#
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#
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# End of 10.2 tests
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#
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