Re: Something is wrong with wal_compression - Mailing list pgsql-hackers

From Tom Lane
Subject Re: Something is wrong with wal_compression
Date
Msg-id 3256386.1674789745@sss.pgh.pa.us
Whole thread Raw
In response to Re: Something is wrong with wal_compression  (Thomas Munro <thomas.munro@gmail.com>)
List pgsql-hackers
Thomas Munro <thomas.munro@gmail.com> writes:
> On Fri, Jan 27, 2023 at 3:04 PM Tom Lane <tgl@sss.pgh.pa.us> wrote:
>> I think we need to get the thing correct first and worry about
>> performance later.  What's wrong with simply making pg_xact_status
>> write and flush a record of the XID's existence before returning it?
>> Yeah, it will cost you if you use that function, but not if you don't.

> It would be pg_current_xact_id() that would have to pay the cost of
> the WAL flush, not pg_xact_status() itself,

Right, typo on my part.

            regards, tom lane



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