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Re: Add 64-bit XIDs into PostgreSQL 15 - Mailing list pgsql-hackers

From	Maxim Orlov
Subject	Re: Add 64-bit XIDs into PostgreSQL 15
Date	November 14, 2022 16:56:07
Msg-id	CACG=ezYiRfkNb3dTqeThebRL3mVfMm65hqaXOuk=FOGB_HbgQg@mail.gmail.com Whole thread Raw
In response to	Re: Add 64-bit XIDs into PostgreSQL 15 (Thom Brown <thom@linux.com>)
Responses	Re: Add 64-bit XIDs into PostgreSQL 15 Re: Add 64-bit XIDs into PostgreSQL 15
List	pgsql-hackers

0008 needs a rebase. heapam.h and catversion.h are failing.

Regards

Thom

Thanks, done!

Also add copying of the xmin and xmax while page is locked. In heapgetpage we have to copy tuples xmin and xmax while

we're holding a lock. Since we do not hold a lock after that, values of xmin or xmax may be changed, and we may get

incorrect values of those fields. This affects only the scenario when the user select xmin or xmax "directly" by SQL query, AFAICS.

Best regards,

Maxim Orlov.

From: "Daniel Verite"
Date: 14 November 2022, 16:47:35
Subject: Re: psql: Add command to use extended query protocol

From: Tom Lane
Date: 14 November 2022, 17:23:54
Subject: Re: pg_basebackup's --gzip switch misbehaves