Well, you're kind of right. I removed the limit, and now _both_
versions of the query perform a sequence scan!
Oh, I forgot to include in my original post: this is PostgreSQL 7.3.4
(on x86 Linux and sparc Solaris 6)
-Joel
-----Original Message-----
From: Guido Barosio [mailto:gbarosio@sinectis.com.ar]
Sent: Wednesday, July 07, 2004 2:46 PM
To: Joel McGraw
Cc: pgsql-performance@postgresql.org
Subject: Re: [PERFORM] query plan wierdness?
The limit is tricking you.
I guess a sequential scan is cheaper than an index scan with the limit
26 found there.
I am wrong?
Greets
--
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Guido Barosio
Buenos Aires, Argentina
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