Claudio Freire <klaussfreire@xxxxxxxxx> writes: > So correlated index scans look extra favourable vs bitmap index scans > because bitmap heap scans consider random page costs sans correlation > effects (even though correlation applies to bitmap heap scans as > well). Really? How? The index ordering has nothing to do with the order in which heap tuples will be visited. regards, tom lane -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
