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help / color / mirror / Atom feedFrom: Laurenz Albe <[email protected]>
To: David Rowley <[email protected]>
Cc: Jonathan Reis <[email protected]>
Cc: Greg Sabino Mullane <[email protected]>
Cc: Olof Salberger <[email protected]>
Cc: [email protected]
Subject: Re: Performance implications of partitioning by UUIDv7 range in PostgreSQL v18
Date: Fri, 24 Oct 2025 08:04:16 +0300
Message-ID: <[email protected]> (raw)
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On Fri, 2025-10-24 at 11:54 +1300, David Rowley wrote:
> On Fri, 24 Oct 2025 at 09:38, Laurenz Albe <[email protected]> wrote:
> > I recommend that you create a primary key on each partition rather than having one
> > on the partitioned table.
>
> It might be worth mentioning that doing that would forego having the
> ability to reference the partitioned table in a foreign key
> constraint.
Right, but referencing a partitioned table with a foreign key is a mixed blessing
anyway: you could no longer drop partitions from the partitioned table without
scanning the referencing table to verify that the foreign key is not violated.
Yours,
Laurenz Albe
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Subject: Re: Performance implications of partitioning by UUIDv7 range in PostgreSQL v18
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