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From: Andrew Dunstan <[email protected]>
To: Tom Lane <[email protected]>
To: Joe Conway <[email protected]>
Cc: Davin Shearer <[email protected]>
Cc: PostgreSQL-development <[email protected]>
Subject: Re: Emitting JSON to file using COPY TO
Date: Wed, 6 Dec 2023 11:19:54 -0500
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
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On 2023-12-06 We 10:44, Tom Lane wrote:
> Joe Conway <[email protected]> writes:
>> I believe this is ready to commit unless there are further comments or
>> objections.
> I thought we were still mostly at proof-of-concept stage?
>
> In particular, has anyone done any performance testing?
> I'm concerned about that because composite_to_json() has
> zero capability to cache any metadata across calls, meaning
> there is going to be a large amount of duplicated work
> per row.
>
> 			


Yeah, that's hard to deal with, too, as it can be called recursively.

OTOH I'd rather have a version of this that worked slowly than none at all.


cheers


andrew


--
Andrew Dunstan
EDB: https://www.enterprisedb.com

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