| From: | Andrew Sullivan <andrew(at)libertyrms(dot)info> |
|---|---|
| To: | "'pgsql-performance(at)postgresql(dot)org'" <pgsql-performance(at)postgresql(dot)org> |
| Subject: | Re: not using index for select min(...) |
| Date: | 2003-01-31 23:31:04 |
| Message-ID: | 20030131183104.L24535@mail.libertyrms.com |
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| Lists: | pgsql-hackers pgsql-performance |
On Fri, Jan 31, 2003 at 04:12:38PM -0500, Don Bowman wrote:
> Why wouldn't I be doing an index scan on this table?
Because you're using the aggregate function min(). See
<http://www.ca.postgresql.org/docs/faq-english.html#4.8>
A
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