pgsql: Marginal performance hack: use a dedicated routine instead of

From: tgl(at)postgresql(dot)org (Tom Lane)
To: pgsql-committers(at)postgresql(dot)org
Subject: pgsql: Marginal performance hack: use a dedicated routine instead of
Date: 2007-04-30 00:16:43
Message-ID: 20070430001643.746339FA5EA@postgresql.org
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Log Message:
-----------
Marginal performance hack: use a dedicated routine instead of copyObject
to copy nodes that are known to be Vars during plan reference adjustment.
Saves useless memzero operation as well as the big switch in copyObject.

Modified Files:
--------------
pgsql/src/backend/optimizer/plan:
setrefs.c (r1.134 -> r1.135)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/src/backend/optimizer/plan/setrefs.c.diff?r1=1.134&r2=1.135)

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