Yang Zhang <yanghatespam@xxxxxxxxx> writes: > db=> explain select * from lead where email = 'blah'; > QUERY PLAN > ------------------------------------------------------------ > Seq Scan on lead (cost=0.00..319599.38 rows=1 width=5108) > Filter: (email = 'blah'::text) > (2 rows) That's awfully odd. What data type is the "email" column? It seems possible also that the index on it is marked invalid. I'd have expected \d to tell you so, but maybe you're using a version of psql that doesn't know about that. It'd be interesting to look at select * from pg_index where indexrelid = 'index name here'::regclass; regards, tom lane -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general