Message-ID: <4a3e4b0d-0fa8-4700-8e9b-e541a040df71@joeconway.com>
Date: Sat, 2 Dec 2023 17:37:48 -0500
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Subject: Re: Emitting JSON to file using COPY TO
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To: Nathan Bossart <nathandbossart@gmail.com>, Tom Lane <tgl@sss.pgh.pa.us>
Cc: Davin Shearer <davin@apache.org>,
 PostgreSQL-development <pgsql-hackers@postgreSQL.org>
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 <398150.1701529880@sss.pgh.pa.us> <20231202215320.GA1855278@nathanxps13>
From: Joe Conway <mail@joeconway.com>
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On 12/2/23 16:53, Nathan Bossart wrote:
> On Sat, Dec 02, 2023 at 10:11:20AM -0500, Tom Lane wrote:
>> So if you are writing a production that might need to match
>> FORMAT followed by JSON, you need to match FORMAT_LA too.
> 
> Thanks for the pointer.  That does seem to be the culprit.
> 
> diff --git a/src/backend/parser/gram.y b/src/backend/parser/gram.y
> index d631ac89a9..048494dd07 100644
> --- a/src/backend/parser/gram.y
> +++ b/src/backend/parser/gram.y
> @@ -3490,6 +3490,10 @@ copy_generic_opt_elem:
>                   {
>                       $$ = makeDefElem($1, $2, @1);
>                   }
> +            | FORMAT_LA copy_generic_opt_arg
> +                {
> +                    $$ = makeDefElem("format", $2, @1);
> +                }
>           ;
>   
>   copy_generic_opt_arg:


Yep -- I concluded the same. Thanks Tom!

-- 
Joe Conway
PostgreSQL Contributors Team
RDS Open Source Databases
Amazon Web Services: https://aws.amazon.com