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help / color / mirror / Atom feedFrom: Andrew Dunstan <[email protected]>
To: David G. Johnston <[email protected]>
To: Joe Conway <[email protected]>
Cc: Sehrope Sarkuni <[email protected]>
Cc: Tom Lane <[email protected]>
Cc: Davin Shearer <[email protected]>
Cc: PostgreSQL-development <[email protected]>
Subject: Re: Emitting JSON to file using COPY TO
Date: Thu, 7 Dec 2023 08:19:19 -0500
Message-ID: <[email protected]> (raw)
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On 2023-12-06 We 17:56, David G. Johnston wrote:
> On Wed, Dec 6, 2023 at 3:38 PM Joe Conway <[email protected]> wrote:
>
> So the questions are:
> 1. Do those two formats work for the initial implementation?
>
>
> Yes. We provide a stream-oriented format and one atomic-import format.
>
> 2. Is the default correct or should it be switched
> e.g. rather than specifying FORCE_ARRAY to get an
> array, something like FORCE_NO_ARRAY to get JSON lines
> and the JSON array is default?
>
>
> No default?
>
> Require explicit of a sub-format when the main format is JSON.
>
> JSON_OBJECT_ROWS
> JSON_ARRAY_OF_OBJECTS
>
> For a future compact array-structured-composites sub-format:
> JSON_ARRAY_OF_ARRAYS
> JSON_ARRAY_ROWS
>
>
No default seems unlike the way we treat other COPY options. I'm not
terribly fussed about which format to have as the default, but I think
we should have one.
cheers
andrew
--
Andrew Dunstan
EDB:https://www.enterprisedb.com
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