Re: Idea on how to simplify comparing two sets

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Joel Jacobson <joel(at)trustly(dot)com>
Cc: Pg Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Idea on how to simplify comparing two sets
Date: 2017-02-07 15:58:41
Message-ID: 15376.1486483121@sss.pgh.pa.us
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Joel Jacobson <joel(at)trustly(dot)com> writes:
> Currently there is no simple way to check if two sets are equal.

Uh ... maybe check whether SELECT set1 EXCEPT SELECT set2
and SELECT set2 EXCEPT SELECT set1 are both empty?

regards, tom lane

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