> 1) Make all types the same > 2) If you are using some narrow type for big_table (say, int2) to save > space, you can force narrowing conversion, e.g. "b.key1=ds.key1::int2". Note > that if ds.key1 has any values that don't fit into int2, you will have > problems. And of course, use your type used instead of int2. > > Best regards, Vitalii Tymchyshyn > This fixed my problem :) Thanks Vitalii! For the other suggestions made from Gabriele, unfortunately I can't make an accurate data-partitioning 'cause (obviously) it will be quite a big work and the customer finished the budget for this year, so unless I choose to work for free... ;) -- Vincenzo. -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance