Seems to be related to https://jira.mariadb.org/browse/MDEV-774
On 03/02/2017 07:04 PM, Alexander Barkov wrote: > Hello Elena, all. > > I noticed that CURSORs in combination with ALTER TABLE work strange. > > Is it a known bug? > > > Thanks. > > > > -- I create a table with two columns > -- And a procedure fetching two columns from this table > > SET sql_mode=DEFAULT; > DROP TABLE IF EXISTS t1; > CREATE TABLE t1 (a INT, b VARCHAR(10)); > INSERT INTO t1 VALUES (10,20); > > DROP PROCEDURE IF EXISTS p1; > DELIMITER $$ > CREATE PROCEDURE p1() > BEGIN > DECLARE a,b INT; > DECLARE cur CURSOR FOR SELECT * FROM t1; > OPEN cur; > FETCH cur INTO a,b; > CLOSE cur; > SELECT a,b; > END; > $$ > DELIMITER ; > CALL p1(); > > -- It returns > -- +------+------+ > -- | a | b | > -- +------+------+ > -- | 10 | 20 | > -- +------+------+ > -- So far so good > > > -- Now I add a new column to the table and call the procedure again > ALTER TABLE t1 ADD c INT; > CALL p1(); > > -- Woops. It should have failed, because there are now 3 columns in the > table > -- But it returns the result, like if the table still had 2 columns. > > _______________________________________________ Mailing list: https://launchpad.net/~maria-developers Post to : maria-developers@lists.launchpad.net Unsubscribe : https://launchpad.net/~maria-developers More help : https://help.launchpad.net/ListHelp
