I have a weird scenario on a table when I run this query... table1 has 1500 rows table2 has 1200 rows table2.id is a foreign key of table1.id
SELECT COUNT(*) FROM table1 WHERE id NOT IN ( SELECT id FROM table2 ); however, using NOT EXISTS works SELECT COUNT(*) FROM table1 WHERE NOT EXISTS ( SELECT id FROM table2 WHERE table1.id = table2.id ); Can you not use NOT IN over a specific number of values?? -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general