Laurent Martelli <[EMAIL PROTECTED]> writes: > PFC> SELECT owner from pictures group by owner; > > That's a slight improvement, but there's still a seq scan on pictures:
It should be a sequential scan. An index will be slower. > HashAggregate (cost=114.38..114.38 rows=21 width=4) (actual > time=7.585..7.605 rows=21 loops=1) > -> Seq Scan on pictures (cost=0.00..103.70 rows=4270 width=4) (actual > time=0.015..3.272 rows=4270 loops=1) > Total runtime: 7.719 ms That's the best plan for this query. -- greg ---------------------------(end of broadcast)--------------------------- TIP 2: you can get off all lists at once with the unregister command (send "unregister YourEmailAddressHere" to [EMAIL PROTECTED])