| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | Joe Conway <mail(at)joeconway(dot)com> |
| Cc: | Andrew Dunstan <andrew(at)dunslane(dot)net>, Davin Shearer <davin(at)apache(dot)org>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Emitting JSON to file using COPY TO |
| Date: | 2023-12-06 15:44:19 |
| Message-ID: | 1104915.1701877459@sss.pgh.pa.us |
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| Lists: | pgsql-general pgsql-hackers |
Joe Conway <mail(at)joeconway(dot)com> 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.
regards, tom lane
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