Re: important Re: [HACKERS] Open 6.5 items - Mailing list pgsql-hackers

From Vadim Mikheev
Subject Re: important Re: [HACKERS] Open 6.5 items
Date
Msg-id 3765D229.4064C3@krs.ru
Whole thread Raw
In response to important Re: [HACKERS] Open 6.5 items  (ZEUGSWETTER Andreas IZ5 <Andreas.Zeugswetter@telecom.at>)
Responses Re: important Re: [HACKERS] Open 6.5 items
List pgsql-hackers
ZEUGSWETTER Andreas IZ5 wrote:
> 
>         Hiroshi wrote:
> > Ole Gjerde who provided the patch for current implementation of
> > mdtruncate() sayz.
> > "First, please reverse my patch to mdtruncate() in md.c as soon as
> >  possible.  It does not work properly in some cases."
> >
> > I also recommend to reverse his patch to mdtruncate().
> >
> > Though we could not shrink segmented relations by old implementation
> > the result by vacuum would never be inconsistent(?).
> >
> > I think we don't have enough time to fix this.
> >
> If there is no fix for vacuum, I suggest to change the filesize before
> splitting
> back to just below 2 Gb (2Gb - 8k). Else vacuum will only work for tables
> up to 1 Gb, and it did work up to 2 Gb before.
> 
> I am the one who suggested 1 Gb, so I had my eye on this issue.
> I still think 1 Gb is good for various reasons, but only if vacuum works.

Is this issue addressed by last mdtruncate() changes?

Vadim


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