Re: Emitting JSON to file using COPY TO

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