Re: slowness when subselect uses DISTINCT

Let's start with one, and whatever is causing it in one, is perhaps in
theory, causing the rest :)

Cheers,
~p

-----Original Message-----
From: pgsql-sql-owner(at)postgresql(dot)org [mailto:pgsql-sql-owner(at)postgresql(dot)org]
On Behalf Of Stuart McGraw
Sent: Friday, 20 April 2007 00:20
To: pgsql-sql(at)postgresql(dot)org
Subject: Re: [SQL] slowness when subselect uses DISTINCT

Phillip Smith wrote:
> May I suggest you post an EXPLAIN ANALYZE to the group for the query
you're
> having problems with...?

I will do that but it has happened to me enough that it seems to be
a general pattern, not something specific to one of my queries,
so I thought some communal knowledge may exist. But apparently
not.

---------------------------(end of broadcast)---------------------------
TIP 9: In versions below 8.0, the planner will ignore your desire to
choose an index scan if your joining column's datatypes do not
match

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