pgsql: Improve comments about semijoin implementation strategy, per a

From: tgl(at)postgresql(dot)org (Tom Lane)
To: pgsql-committers(at)postgresql(dot)org
Subject: pgsql: Improve comments about semijoin implementation strategy, per a
Date: 2009-02-19 20:32:45
Message-ID: 20090219203245.838797559ED@cvs.postgresql.org
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Log Message:
-----------
Improve comments about semijoin implementation strategy, per a question
from Robert Haas.

Modified Files:
--------------
pgsql/src/backend/optimizer/path:
joinrels.c (r1.97 -> r1.98)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/optimizer/path/joinrels.c?r1=1.97&r2=1.98)

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