Am Montag, 7. Mai 2007 15:53 schrieb Jonas Henriksen: > while if I add a GROUP BY data_logger the query uses a seq scan and a > > lot of time: > >> explain analyze SELECT max(date_time) FROM data_values GROUP BY > data_logger_id;
I don't think there is anything you can do about this. -- Peter Eisentraut http://developer.postgresql.org/~petere/ ---------------------------(end of broadcast)--------------------------- TIP 3: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faq
