> AND '' IN ('', upper(b.nazwisko))
> AND '' IN ('', upper(b.imie))
> AND '7804485' IN ('', b.pesel)
> AND '' IN ('', upper(trim(b.dowseria)))
> AND '' IN ('', b.dowosnr)
> AND 0 IN (0, b.typkred)
> AND k.datazwrot IS NULL;
Hum, interesting. Most of the work Postgres does with IN clauses i
That's email from my friend.
Any hint?
Original Message
Subject: bug
Date: Wed, 09 May 2007 15:03:00 +0200
From: Michal Postupalski
To: Andrzej Zawadzki
We've just changed our database from 8.1 to 8.2 and we are
grief-stricken about very poor performance with queries using claus
