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List: pgsql-committers
Subject: [COMMITTERS] pgsql: Reducing the assumed alignment of struct varlena means that the
From: tgl () postgresql ! org (Tom Lane)
Date: 2008-02-29 17:47:41
Message-ID: 20080229174741.9991A754108 () cvs ! postgresql ! org
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Log Message:
-----------
Reducing the assumed alignment of struct varlena means that the compiler
is also licensed to put a local variable declared that way at an unaligned
address. Which will not work if the variable is then manipulated with
SET_VARSIZE or other macros that assume alignment. So the previous patch
is not an unalloyed good, but on balance I think it's still a win, since
we have very few places that do that sort of thing. Fix the one place in
tuptoaster.c that does it. Per buildfarm results from gypsy_moth
(I'm a bit surprised that only one machine showed a failure).
Modified Files:
--------------
pgsql/src/backend/access/heap:
tuptoaster.c (r1.82 -> r1.83)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/access/heap/tuptoaster.c?r1=1.82&r2=1.83)
---------------------------(end of broadcast)---------------------------
TIP 9: In versions below 8.0, the planner will ignore your desire to
choose an index scan if your joining column's datatypes do not
match
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