Re: Emitting JSON to file using COPY TO

Pavel Stehule <pavel.stehule@gmail.com>

From: Pavel Stehule <pavel.stehule@gmail.com>
To: "David G. Johnston" <david.g.johnston@gmail.com>
Cc: Dominique Devienne <ddevienne@gmail.com>, Adrian Klaver <adrian.klaver@aklaver.com>, Davin Shearer <scholarsmate@gmail.com>, "pgsql-general@lists.postgresql.org" <pgsql-general@lists.postgresql.org>
Date: 2023-11-27T13:56:30Z
Lists: pgsql-hackers

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →
  1. Add option force_array for COPY JSON FORMAT

  2. json format for COPY TO

  3. introduce CopyFormat, refactor CopyFormatOptions

  4. Doc: add IDs to copy.sgml's <varlistentry> and <refsect1>

Hi

po 27. 11. 2023 v 14:27 odesílatel David G. Johnston <
david.g.johnston@gmail.com> napsal:

> On Monday, November 27, 2023, Dominique Devienne <ddevienne@gmail.com>
> wrote:
>
>> There's even a JSON mode.
>> By miracle, would the JSON output mode recognize JSON[B] values, and
>> avoid the escaping?
>>
>
> I agree there should be a copy option for “not formatted” so if you dump a
> single column result in that format you get the raw unescaped contents of
> the column. As soon as you ask for a format your json is now embedded so it
> is a value within another format and any structural aspects of the wrapper
> present in the json text representation need to be escaped.
>

Is it better to use the LO API for this purpose?  It is native for not
formatted data.

Regards

Pavel


> David J.
>