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help / color / mirror / Atom feedFrom: Florents Tselai <[email protected]>
To: jian he <[email protected]>
Cc: Junwang Zhao <[email protected]>
Cc: Joe Conway <[email protected]>
Cc: Andrey M. Borodin <[email protected]>
Cc: Dean Rasheed <[email protected]>
Cc: Daniel Verite <[email protected]>
Cc: Andrew Dunstan <[email protected]>
Cc: Davin Shearer <[email protected]>
Cc: PostgreSQL-development <[email protected]>
Subject: Re: Emitting JSON to file using COPY TO
Date: Tue, 3 Feb 2026 18:40:49 +0200
Message-ID: <CA+v5N43-F9-Wiktg_-+aqKJz+YiCNJMAh5ootDeTKkOJ=kiaHA@mail.gmail.com> (raw)
In-Reply-To: <CACJufxGq6aJszBhfrUQKHeKmp0r+ka7=SwHSY7Qs_6LQMwiEbw@mail.gmail.com>
References: <[email protected]>
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On Wed, Jan 21, 2026 at 2:16 PM jian he <[email protected]> wrote:
> hi.
>
> rebase only.
>
> --
> jian
> https://www.enterprisedb.com/
I (and others I assume) would really like to see this in 19;
glancing at the thread above and in the test cases I see this is in good
shape for comitter review.
No?
If I were to add something it would be an example in copy.sgml
<para>
When the <literal>FORCE_ARRAY</literal> option is enabled,
the entire output is wrapped in a JSON array and individual rows are
separated by commas:
<programlisting>
COPY (SELECT id, name FROM users) TO STDOUT (FORMAT JSON, FORCE_ARRAY);
</programlisting>
<programlisting>
[
{"id": 1, "name": "Alice"}
,{"id": 2, "name": "Bob"}
,{"id": 3, "name": "Charlie"}
]
</programlisting>
</para>
Also, apologies if that has been discussed already,
is there a good reason why didn't we just go with a simple "WRAP_ARRAY" ?
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