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pgsql: Improve commentary in match_pathkeys_to_index().

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: pgsql-committers(at)postgresql(dot)org
Subject: pgsql: Improve commentary in match_pathkeys_to_index().
Date: 2012-03-16 18:08:05
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Lists: pgsql-committers
Improve commentary in match_pathkeys_to_index().

For a little while there I thought match_pathkeys_to_index() was broken
because it wasn't trying to match index columns to pathkeys in order.
Actually that's correct, because GiST can support ordering operators
on any random collection of index columns, but it sure needs a comment.



Modified Files
src/backend/optimizer/path/indxpath.c |    7 +++++++
1 files changed, 7 insertions(+), 0 deletions(-)

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Subject: pgsql: psql: Remove inappropriate const qualifiers
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Subject: pgsql: Revisit handling of UNION ALL subqueries with non-Var outputcol

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