Re: Is it possible to specify an ESCAPE for a wildcard search using LIKE ANY (...)

From: Thomas Kellerer <spam_eater(at)gmx(dot)net>
To: pgsql-general(at)postgresql(dot)org
Subject: Re: Is it possible to specify an ESCAPE for a wildcard search using LIKE ANY (...)
Date: 2017-01-17 12:45:34
Message-ID: o5l3l8$8hd$1@blaine.gmane.org
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Tom Lane schrieb am 17.01.2017 um 13:41:
> Thomas Kellerer <spam_eater(at)gmx(dot)net> writes:
>> So my question is: Is there any way to specify an alternate wildcard escape when using LIKE ANY (..)?
>
> No, not with ESCAPE. [ manfully resists temptation to run down SQL
> committee's ability to design composable syntax ... oops ]
>
> You could do what PG does under the hood, which is to run the pattern
> through like_escape():
>
> select *
> from some_table
> where name like any (array[like_escape('foo_bar%', '/'),
> like_escape('bar_foo%', '/')]);
>
> If that seems too verbose, maybe build a function to apply like_escape
> to each member of an array.

OK, thanks.

I was trying to avoid to actually change the input list, but apparently there is no other way.

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