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help / color / mirror / Atom feedFrom: Tim Dudgeon <tdudgeon.ml@gmail.com>
Cc: pgsql-sql@postgresql.org
Subject: Re: Querying with arrays
Date: Thu, 27 Nov 2014 16:55:35 +0000
Message-ID: <54775787.4030801@gmail.com> (raw)
In-Reply-To: <3676.1417100070@sss.pgh.pa.us>
References: <547722A7.4040702@gmail.com>
<3676.1417100070@sss.pgh.pa.us>
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On 27/11/2014 14:54, Tom Lane wrote:
> You could create a GIN index on lists.hits and then do
>
> SELECT t1.*
> FROM some_table t1
> JOIN lists l ON array[t1.id] <@ l.hits
> WHERE l.id = 2;
>
> How efficient that will be remains to be determined though;
> if the l.id condition will eliminate a lot of matches it
> could still be kind of slow.
Afraid that was *much* slower.
Tim
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Subject: Re: Querying with arrays
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