From: Matthew Hall <mhall@mhcomputing.net>
To: pgsql-performance@lists.postgresql.org
Subject: Re: Query with "ILIKE ALL" does not use the index
Date: Thu, 26 Jul 2018 10:22:21 -0700
Message-ID: <460B4CB5-0D1D-43C8-829B-D7734A84779D@mhcomputing.net> (raw)
In-Reply-To: <17421.1532623454@sss.pgh.pa.us>
References: <CALghGHM72CTRyb7-ggFU-ubm3LfXqK019Y=WjP-JwzjzT8QDCA@mail.gmail.com>
<17421.1532623454@sss.pgh.pa.us>
On Jul 26, 2018, at 9:44 AM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>
> Nicolas Even <neven@ztel.org> writes:
>> However when I run the same (as far as I understand it) query but with
>> the ALL operator, the index is not used:
>> explain analyze select name from totoz where name ilike all(array['%tot%']);
>
> There's only index support for "op ANY (array)", not "op ALL (array)".
>
> regards, tom lane
Nicolas,
Could you work around the limitation with a two-clause WHERE?
First clause ANY, second clause ALL.
I've done some similar tricks on similar sorts of queries.
Matthew.
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To: pgsql-performance@postgresql.org
Cc: mhall@mhcomputing.net, pgsql-performance@lists.postgresql.org
Subject: Re: Query with "ILIKE ALL" does not use the index
In-Reply-To: <460B4CB5-0D1D-43C8-829B-D7734A84779D@mhcomputing.net>
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