Re: [PERFORM] Index not used on group by
Здравствуйте Richard, Tuesday, September 27, 2005, 1:48:15 PM, Вы писали: RH Andrey Repko wrote: I have table ma_data, that contain above 30 rows. This table has primary key id, and field alias_id. I create index (btree)on this field. Set statistic: ALTER TABLE
Re: [PERFORM] Index not used on group by
Здравствуйте Richard, Tuesday, September 27, 2005, 2:08:31 PM, Вы писали: sart_ma=# EXPLAIN ANALYZE SELECT alias_id FROM ma_data GROUP BY alias_id; QUERY PLAN