| From: | "Tang, Haiying" <tanghy(dot)fnst(at)cn(dot)fujitsu(dot)com> |
|---|---|
| To: | Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> |
| Cc: | "Tsunakawa, Takayuki" <tsunakawa(dot)takay(at)fujitsu(dot)com>, Greg Nancarrow <gregn4422(at)gmail(dot)com>, Dilip Kumar <dilipbalaut(at)gmail(dot)com>, vignesh C <vignesh21(at)gmail(dot)com>, Bharath Rupireddy <bharath(dot)rupireddyforpostgres(at)gmail(dot)com>, Andres Freund <andres(at)anarazel(dot)de>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>, Antonin Houska <ah(at)cybertec(dot)at> |
| Subject: | RE: Parallel INSERT (INTO ... SELECT ...) |
| Date: | 2021-01-18 09:12:56 |
| Message-ID: | 711a16373ae54977963e4c6e08e748b7@G08CNEXMBPEKD05.g08.fujitsu.local |
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| Lists: | pgsql-hackers |
Hi Amit
> I don't think the patch should have any impact on the serial case. I
> think you can try to repeat each test 3 times both with and without a
> patch and take the median of the three.
Actually, I repeated about 10 times, the execution time is always less than unpatched.
Regards,
Tang
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