| From: | Sehrope Sarkuni <sehrope(at)jackdb(dot)com> |
|---|---|
| To: | Dave Cramer <davecramer(at)postgres(dot)rocks> |
| Cc: | Vladislav Malyshkin <mal(at)gromco(dot)com>, Vladimir Sitnikov <sitnikov(dot)vladimir(at)gmail(dot)com>, "David G(dot) Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, "pgsql-jdbc(at)lists(dot)postgresql(dot)org" <pgsql-jdbc(at)lists(dot)postgresql(dot)org> |
| Subject: | Re: JDBC prepared statement: a 32767 limit of arguments number |
| Date: | 2022-03-11 16:46:32 |
| Message-ID: | CAH7T-ap-4i6Qinbjw8Kn1NZ6WUdYjGHLCUE_i_WxmnUtkAe+7w@mail.gmail.com |
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| Lists: | pgsql-jdbc |
On Fri, Mar 11, 2022 at 8:55 AM Dave Cramer <davecramer(at)postgres(dot)rocks>
wrote:
> I'd be willing to bet it's pretty close to COPY. Do we have any numbers ?
>
You'd win that bet.
I just tried it out with 25K inserts using eithers VALUES, UNNEST arrays,
and COPY IN.
In a completely unscientific test on my active machine, the array and COPY
IN were on par with each other, running in about 30-40ms.
Both of them were 250x faster than using individual separate statements
with VALUES.
Regards,
-- Sehrope Sarkuni
Founder & CEO | JackDB, Inc. | https://www.jackdb.com/
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