On Mon, 3 Feb 2003, Donny Drummonds wrote: > I am running a dual athlon 1800 with an gig of ram. I am running postgres > 7.2. I have a table that hs 15 million rows. I have a query that has one > columns and the select cluase and one column in the where clause with no > joining or sub-queries. If I do not index the column from the where clause > the query returns the 150,000 rows in 4 and a half minutes. If in do index > the column from the where clause using a btree the 150,000 rows return in 11 > and a half minutes. > > Any insight would be greatly appreciated.
Hmm, have you analyzed recently? In any case, the table definition, query and explain analyze outpute would be useful to see. ---------------------------(end of broadcast)--------------------------- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/users-lounge/docs/faq.html