config root man

--echo #
--echo # Test of prepared statements being rewritten.
--echo #

--source suite/query_rewrite_plugins/include/have_plugin_rewriter.inc

CREATE TABLE t1 ( a INTEGER, b CHAR(1) );
INSERT INTO t1 VALUES ( 1, 'a' ), ( 2, 'b' ), ( 3, 'c' );

--source suite/query_rewrite_plugins/include/install_rewriter.inc

INSERT INTO query_rewrite.rewrite_rules ( pattern, replacement )
VALUES ( 'SELECT a FROM test.t1 WHERE a = ?',
         'SELECT b FROM test.t1 WHERE a = ?' ),
       ( 'SELECT 1, ?', 'SELECT "rewritten"' );

CALL query_rewrite.flush_rewrite_rules();

SELECT a FROM test.t1 WHERE a = 1;

PREPARE stmt1 FROM 'SELECT a FROM test.t1 WHERE a = 1';
EXECUTE stmt1;

PREPARE stmt2 FROM 'SELECT a FROM test.t1 WHERE a = ?';

SET @var = 1;
EXECUTE stmt2 USING @var;

SET @var = 2;
EXECUTE stmt2 USING @var;

SET @var = 3;
EXECUTE stmt2 USING @var;

PREPARE stmt3 FROM 'SELECT 1, ?';
SET @var= 1;
EXECUTE stmt3;

--echo # Can't be rewritten. We rewrite at prepare time, when we don't know
--echo # the value of the first '?'.
PREPARE stmt3 FROM 'SELECT ?, ?';
SET @var= 1;
EXECUTE stmt3 USING @var, @var;

DROP TABLE t1;
--source suite/query_rewrite_plugins/include/uninstall_rewriter.inc