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Make source code READMEs more consistent. Add CVS tags to all README files.

This commit is contained in:
Bruce Momjian
2008-03-20 17:55:15 +00:00
parent 27dfc11d67
commit 4e228447aa
22 changed files with 148 additions and 93 deletions

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@ -1,5 +1,7 @@
Summary
-------
$PostgreSQL: pgsql/src/backend/optimizer/README,v 1.42 2008/03/20 17:55:14 momjian Exp $
Optimizer
---------
These directories take the Query structure returned by the parser, and
generate a plan used by the executor. The /plan directory generates the
@ -180,7 +182,7 @@ to see which join style should be applied for a valid join, ie,
JOIN_INNER, JOIN_LEFT, etc.)
Valid OUTER JOIN optimizations
Valid OUTER JOIN Optimizations
------------------------------
The planner's treatment of outer join reordering is based on the following
@ -236,7 +238,7 @@ set must be expanded to include the whole of the lower OJ, thereby
preventing it from being formed before the lower OJ is.)
Pulling up subqueries
Pulling Up Subqueries
---------------------
As we described above, a subquery appearing in the range table is planned

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Subselect notes from Vadim.
$PostgreSQL: pgsql/src/backend/optimizer/plan/README,v 1.2 2008/03/20 17:55:14 momjian Exp $
Subselects
----------
Vadim B. Mikheev
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