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union problem

From: <kazelot_at_thenut.eti.pg.gda.pl>
Date: Tue, 12 Jun 2001 12:26:59 +0200
Message-ID: <Pine.LNX.4.33.0106121216580.13915-100000@thenut.eti.pg.gda.pl>

I have two sql queries joined with union. Each query separately executes in about 0.1s. query1 union query2 takes more then 50s, which is about 500 times more.

Is it possible? I mean it is because I got this results :-), but what what could happend?

Thanks for any suggestions,
kazelot Received on Tue Jun 12 2001 - 05:26:59 CDT

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