"TJ O'Donnell" <tjo@xxxxxxx> writes:
Presumably, the only reason I would HAVE TO recompile
is when some header file changes. Is there any guarantee
that header files DO NOT change, for example from
7.4.5 to 7.4.8 or even 7.4.12? Can I assume that header
file changes only occur between major pg changes, such as
7.3 to 7.4, or 8.0 to 8.1?
Uh, no, not really; see complaint from Thomas Hallgren in -hackers
just yesterday. We don't normally change internal APIs in patch
releases; in fact we don't change anything we don't have to. But
we will change 'em if needed to fix a bug.
You might want to eyeball the proposed "magic block" for loadable
modules:
http://archives.postgresql.org/pgsql-patches/2006-05/msg00124.php
regards, tom lane
I understand and appreciate bug fixes, but isn't one of the purposes of
major releases to provide some stability (say of API) within
the major release? I know in some software systems (and users complain
about this) some bug fixes which would require API, or other major changes
are postponed until the next major release. Maybe the changes Thomas
Hallgren was pointing out in 8.1.4 are quite rare and we both realized
at the same time that we were not in Utopia.
As far as I can see, the "magic block" stuff would only work BETWEEN
major releases, so this would not help me (much) or Thomas' 8.1.4+ woes.
"
It now only checks four things:
Major version number (7.4 or 8.1 for example)
NAMEDATALEN
FUNC_MAX_ARGS
INDEX_MAX_KEYS
"
TJ
