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RE: [GENERAL] Long update query ? (also Re: [GENERAL] CNF vs. DNF)

From: "Taral" <taral(at)mail(dot)utexas(dot)edu>
To: "Bruce Momjian" <maillist(at)candle(dot)pha(dot)pa(dot)us>
Cc: "PostgreSQL-development" <hackers(at)postgreSQL(dot)org>
Subject: RE: [GENERAL] Long update query ? (also Re: [GENERAL] CNF vs. DNF)
Date: 1998-10-02 16:37:15
Message-ID: 000201bdee22$e9c8ed80$3b291f0a@taral (view raw or flat)
Thread:
Lists: pgsql-generalpgsql-hackers
> This is interesting.  Check CNF size and DNF size.  Choose smallest. 
> CNF uses existing code, DNF converts to UNIONs.  How do you return the
> proper rows with/without proper duplicates?

Create a temporary oid hash? (for each table selected on, I guess)

Taral

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