Wednesday, June 11, 2008

Re: [HACKERS] Proposal: Multiversion page api (inplace upgrade)

Gregory Stark wrote:
> "Tom Lane" <tgl@sss.pgh.pa.us> writes:
>
> > (Likely counterexample: adding collation info to text values.)
>
> I don't think the argument really needs an example, but I
> would be pretty
> upset if we proposed tagging every text datum with a
> collation. Encoding
> perhaps, though that seems like a bad idea to me on
> performance grounds, but
> collation is not a property of the data at all.

Again not directly related to difficulties upgrading pages...

The recent discussion ...
http://archives.postgresql.org/pgsql-hackers/2008-06/msg00102.php
... mentions keeping collation information together with text data,
however it is referring to keeping it together when processing it,
not when storing the text.

Regards,
Stephen Denne.
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