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help / color / mirror / Atom feedFrom: Michail Nikolaev <[email protected]>
To: Melanie Plageman <[email protected]>
Cc: PostgreSQL Hackers <[email protected]>
Cc: Alvaro Herrera <[email protected]>
Cc: Matthias van de Meent <[email protected]>
Subject: Re: Revisiting {CREATE INDEX, REINDEX} CONCURRENTLY improvements
Date: Tue, 9 Jan 2024 18:00:28 +0100
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Hello, Melanie!
Sorry to interrupt you, just a quick question.
> Correct, but there are changes being discussed where we would freeze
> tuples during pruning as well [0], which would invalidate that
> implementation detail. And, if I had to choose between improved
> opportunistic freezing and improved R/CIC, I'd probably choose
> improved freezing over R/CIC.
Do you have any patches\threads related to that refactoring
(opportunistic freezing of tuples during pruning) [0]?
This may affect the idea of the current thread (latest version of it
mostly in [1]) - it may be required to disable such a feature for
particular relation temporary or affect horizon used for pruning
(without holding xmin).
Just no sure - is it reasonable to start coding right now, or wait for
some prune-freeze-related patch first?
[0] https://www.postgresql.org/message-id/[email protected]...
[1] https://www.postgresql.org/message-id/flat/CANtu0ojRX%3DosoiXL9JJG6g6qOowXVbVYX%2BmDsN%2B2jmFVe%3DeG...
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To: [email protected]
Cc: [email protected], [email protected], [email protected], [email protected]
Subject: Re: Revisiting {CREATE INDEX, REINDEX} CONCURRENTLY improvements
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