Re: ts_rewrite in 10.4

From: "Jonathan S(dot) Katz" <jkatz(at)postgresql(dot)org>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Douglas Doole <dougdoole(at)gmail(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: ts_rewrite in 10.4
Date: 2018-05-10 19:38:34
Message-ID: 35421406-0E8A-4DFC-AD09-64E9B81757D3@postgresql.org
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> On May 10, 2018, at 10:16 AM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>
> Douglas Doole <dougdoole(at)gmail(dot)com> writes:
>> The release notes say:
>> ALTER FUNCTION pg_catalog.ts_rewrite(tsquery, tsquery, tsquery) PARALLEL
>> UNSAFE;
>
>> But when I pull pg_proc.h from 10.4, I find:
>> DATA(insert OID = 3684 ( ts_rewrite PGNSP PGUID 12 1 0 0 0 f f f f t f i s
>> 3 0 3615 "3615 3615 3615" ...
>
>> Which I think means the function is still marked parallel safe. Am I
>> missing something?
>
> Oh ... that's a mistake in the release notes :-(. The 3-argument form of
> ts_rewrite doesn't execute any user-supplied query; AFAICS it's not any
> less safe than anything else. The 2-argument form runs a user-supplied
> query string, and *does* need to be marked unsafe. So the patch got
> it right, but then we got confused while making the notes.

Updated notes in news section. Unfortunately too late to update email :(

Thanks,

Jonathan

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