Horton

Thread

Commits

  1. Doc: fix backwards description of visibility map's all-frozen data.

  1. No, that's backwards.

    Vik Fearing <vik.fearing@2ndquadrant.com> — 2017-07-09T13:30:54Z

    The documentation at
https://www.postgresql.org/docs/current/static/storage-vm.html says that
the visibility map "keeps track of which pages contain only unfrozen
tuples".

This is wrong; it keeps track of all-frozen pages not all-unfrozen.

Trivial patch attached.
-- 
Vik Fearing                                          +33 6 46 75 15 36
http://2ndQuadrant.fr     PostgreSQL : Expertise, Formation et Support

  2. Re: No, that's backwards.

    Tom Lane <tgl@sss.pgh.pa.us> — 2017-07-09T16:52:02Z

    Vik Fearing <vik.fearing@2ndquadrant.com> writes:
> The documentation at
> https://www.postgresql.org/docs/current/static/storage-vm.html says that
> the visibility map "keeps track of which pages contain only unfrozen
> tuples".
> This is wrong; it keeps track of all-frozen pages not all-unfrozen.

Yup.  Pushed, thanks!

			regards, tom lane