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From: Richard Guo <[email protected]>
To: Tom Lane <[email protected]>
Cc: David Rowley <[email protected]>
Cc: nikhil raj <[email protected]>
Cc: [email protected]
Subject: Re: Significant Execution Time Difference Between PG13.14 and PG16.4 for Query on information_schema Tables.
Date: Thu, 29 Aug 2024 09:54:57 +0800
Message-ID: <CAMbWs4-na1ynWwcanzQL85SyjgQ_QfNoxJ3vp3DH14iOtYiQ6g@mail.gmail.com> (raw)
In-Reply-To: <[email protected]>
References: <CALNXOfqDr5jVRZHThyXyNftDuezjxOJB1mqw=4x1T8YBibi6uw@mail.gmail.com>
	<CAG1ps1w61XD1LxUf3EBCZ=VR3S_orRj_dk6cxmO5KusBVyrgMg@mail.gmail.com>
	<CAAvG1pChk3W9MWkK-_JPyUdThSoJhv4MueH5i8cZS2T_HUP5dA@mail.gmail.com>
	<CAG1ps1xvnTZceKK24OUfMKLPvDP2vjT-d+F2AOCWbw_v3KeEgg@mail.gmail.com>
	<[email protected]>
	<CAApHDvpRxyw1G2HVkA=PM5Uqh59moOFqPXyMTsEDUadKo2fQTA@mail.gmail.com>
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	<[email protected]>
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	<CAApHDvp1mue1a5fdfsa2z2mAS6v2d9+kxMzxH7GhAiC0Z7o8Mw@mail.gmail.com>
	<[email protected]>
	<[email protected]>
	<CAApHDvr2v7iwMUsCQKxUPSSzTGuBOx1_e0hyEA8VLy1or35JVA@mail.gmail.com>
	<CAMbWs49gVdBxrjvz82Tqs9UL+ZDNV5cx85ZURhfxUaz-0wz-pQ@mail.gmail.com>
	<[email protected]>

On Thu, Aug 29, 2024 at 4:47 AM Tom Lane <[email protected]> wrote:
> In the meantime, I think this test case is mighty artificial,
> and it wouldn't bother me any to just take it out again for the
> time being.

Yeah, I think we can remove the 't1.two+t2.two' test case if we go
with your proposed patch to address this performance regression.

Thanks
Richard






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  Subject: Re: Significant Execution Time Difference Between PG13.14 and PG16.4 for Query on information_schema Tables.
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