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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Joe Van Dyk <joe@tanga.com>
cc: "pgsql-performance@postgresql.org" <pgsql-performance@postgresql.org>
Subject: Re: querying jsonb for arrays inside a hash
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Comments: In-reply-to Joe Van Dyk <joe@tanga.com>
 message dated "Sat, 07 Nov 2015 15:31:18 -0800"
Date: Sat, 07 Nov 2015 19:00:21 -0500
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Joe Van Dyk <joe@tanga.com> writes:
> I noticed that querying for
>    product_attributes @> '{"upsell":["true"]}'
> is much slower than querying for
>    product_attributes @> '{"upsell": 1}'

> Is that expected?

Your EXPLAIN results say that the first query matched 135843 rows and the
second one none at all, so a significant variation in runtime doesn't seem
that surprising to me ...

			regards, tom lane


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