From: | tgl(at)postgresql(dot)org (Tom Lane) |
---|---|
To: | pgsql-committers(at)postgresql(dot)org |
Subject: | pgsql: Change on-disk representation of NUMERIC datatype so that the |
Date: | 2007-09-25 22:21:55 |
Message-ID: | 20070925222155.F2FF5753E4C@cvs.postgresql.org |
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Lists: | pgsql-committers |
Log Message:
-----------
Change on-disk representation of NUMERIC datatype so that the sign_dscale
word comes before the weight instead of after. This will allow future
binary-compatible extension of the representation to support compact formats,
as discussed on pgsql-hackers around 2007/06/18. The reason to do it now is
that we've already pretty well broken any chance of simple in-place upgrade
from 8.2 to 8.3, but it's possible that 8.3 to 8.4 (or whenever we get around
to squeezing NUMERIC) could otherwise be data-compatible.
Modified Files:
--------------
pgsql/src/include/catalog:
catversion.h (r1.428 -> r1.429)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/catalog/catversion.h?r1=1.428&r2=1.429)
pgsql/src/include/utils:
numeric.h (r1.24 -> r1.25)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/include/utils/numeric.h?r1=1.24&r2=1.25)
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