On Mon, Nov 21, 2011 at 7:26 AM, Gavin Flower <GavinFlower@xxxxxxxxxxxxxxxxx> wrote: > How about having 2 indexes: one on each of ip & url_md5? Pg will combine the > indexes as required, or will just use one if that is best. Thanks Gavin. Question: what if I have a joined index? If from a joined index I only use the first column (say, "ip") will a joined index still be used? It is cleaner to create two indexes for the two columns. Which is recommended? -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general