Re: [HACKERS] temporary indexes

On Tue, Feb 28, 2006 at 11:55:32AM -0600, Kevin Grittner wrote:
>> Also, EXISTS works in situations where
>> you need to compare on multiple columns, so it is useful in many
>> situations where EXISTS or MIN/MAX techniques just don't work.
> Sorry.  That should have read:
>
> EXISTS works in situations where
> you need to compare on multiple columns, so it is useful in many
> situations where IN or MIN/MAX techniques just don't work.

Can't you just do WHERE (foo,bar) IN ( SELECT baz,quux FROM table )? I'm
quite sure I've done that a number of times.

/* Steinar */
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