roopasatish wrote: > I have an issue with the add foreign key constraint which > goes for waiting and locks other queries as well. > > ALTER TABLE ONLY holding_positions ADD CONSTRAINT > holding_positions_stock_id_fkey FOREIGN KEY (stock_id) > REFERENCES stocks (stock_id) MATCH SIMPLE > ON UPDATE NO ACTION ON DELETE NO ACTION; > > The holding_positions table has no data in it as yet. Look in pg_catalog.pg_locks for a second transaction that holds a lock on the table holding_positions. How many backends do you see in pg_stat_activity that are running or in a transaction? Any other backend that is in a transaction that has e.g. selected from the table will block the ALTER TABLE. Yours, Laurenz Albe -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
