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From: Sašo Gantar <[email protected]>
To: Tom Lane <[email protected]>
Cc: Laurenz Albe <[email protected]>
Cc: David Rowley <[email protected]>
Cc: [email protected]
Subject: Re: problem with query
Date: Mon, 27 May 2024 13:39:54 +0200
Message-ID: <CAGB0_65WW2GRF9qRx112a+jVeWLPSw+tyGKeuu_eNp8x+e7AbA@mail.gmail.com> (raw)
In-Reply-To: <CAGB0_67P1JNuVXAijwXtET9YTpqWO=Uii=oeMb-KVaKXQCp=JQ@mail.gmail.com>
References: <CAGB0_6600w5C=hvhgfMWCqO9BCwCg+3s0PxXuoQv48NLqTp6dA@mail.gmail.com>
	<CAApHDvq=sj+vVQ6HKOdNLeWbQnHErg5QPSz26s0a90PtY1NLdw@mail.gmail.com>
	<CAGB0_67gRyJkCycv6vJA_8fFtNUu7H-f-nsKastZTe93gobBHA@mail.gmail.com>
	<[email protected]>
	<CAGB0_67+MbsqatNyone7cx5ziuKy_DfV=MLTcc6T0BfoS3Qyrw@mail.gmail.com>
	<[email protected]>
	<CAGB0_67P1JNuVXAijwXtET9YTpqWO=Uii=oeMb-KVaKXQCp=JQ@mail.gmail.com>

upgrade to "PostgreSQL 16.3 (Debian 16.3-1.pgdg120+1) on
x86_64-pc-linux-gnu, compiled by gcc (Debian 12.2.0-14) 12.2.0, 64-bit"
solved the problem

regards,
s

On Wed, 22 May 2024 at 06:04, Sašo Gantar <[email protected]> wrote:

> ANALYZE pg_class; doesn't help
> also, query is from "Hasura", so I don't have much room to maneuver
>
> On Tue, 21 May 2024 at 16:18, Tom Lane <[email protected]> wrote:
>
>> =?UTF-8?B?U2HFoW8gR2FudGFy?= <[email protected]> writes:
>> > thanks for the info, but is there any solution, given that it's system
>> > tables?
>>
>> Given the complexity of the query, I wonder if you're running into
>> problems with join_collapse_limit/from_collapse_limit preventing
>> the planner from considering all options.
>>
>> Also, as David already mentioned, ANALYZE on pg_class might help.
>>
>>                         regards, tom lane
>>
>


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