Stored procedure to allow a efficient truncating of InnoDB tables

INNODB_TRUNCATE.sql

delimiter //
DROP PROCEDURE IF EXISTS INNODB_TRUNCATE//
CREATE PROCEDURE INNODB_TRUNCATE(IN tbl CHAR(128))
BEGIN

SET @tbl_tmp 	= CONCAT(tbl, '_idbtrunc_tmp');
SET @tbl 		= tbl;

SET @v = CONCAT("DROP TABLE IF EXISTS ", @tbl_tmp);
PREPARE drop_tmp FROM @v;
EXECUTE drop_tmp;

SET @v = CONCAT("CREATE TABLE ", @tbl_tmp, " LIKE ", @tbl);
PREPARE create_tmp FROM @v;
EXECUTE create_tmp;

SET @v = CONCAT("DROP TABLE ", @tbl);
PREPARE drop_tbl FROM @v;
EXECUTE drop_tbl;

SET @v = CONCAT("RENAME TABLE ", @tbl_tmp, " TO ", @tbl);
PREPARE rename_tmp FROM @v;
EXECUTE rename_tmp;

END;
//
delimiter ;

-- Example Usage:
-- $ CALL INNODB_TRUNCATE('my_innodb_table');
-- Affected rows: 0
-- Time: 0.218ms

There is a TAB in line 7, which makes mysql client go crazy!!!