Tom Lane eb22950510 Fix PlaceHolderVar mechanism's interaction with outer joins. ...

The point of a PlaceHolderVar is to allow a non-strict expression to be
evaluated below an outer join, after which its value bubbles up like a Var
and can be forced to NULL when the outer join's semantics require that.
However, there was a serious design oversight in that, namely that we
didn't ensure that there was actually a correct place in the plan tree
to evaluate the placeholder :-(.  It may be necessary to delay evaluation
of an outer join to ensure that a placeholder that should be evaluated
below the join can be evaluated there.  Per recent bug report from Kirill
Simonov.

Back-patch to 8.4 where the PlaceHolderVar mechanism was introduced.

2010-09-28 14:19:00 -04:00

..

access

Remove cvs keywords from all files.

2010-09-20 22:08:53 +02:00

bootstrap

Convert cvsignore to gitignore, and add .gitignore for build targets.

2010-09-22 12:57:04 +02:00

catalog

Add a SECURITY LABEL command.

2010-09-27 20:55:27 -04:00

commands

Add a SECURITY LABEL command.

2010-09-27 20:55:27 -04:00

executor

Remove cvs keywords from all files.

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foreign

Remove cvs keywords from all files.

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lib

Remove cvs keywords from all files.

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libpq

Remove cvs keywords from all files.

2010-09-20 22:08:53 +02:00

main

Remove cvs keywords from all files.

2010-09-20 22:08:53 +02:00

nodes

Fix PlaceHolderVar mechanism's interaction with outer joins.

2010-09-28 14:19:00 -04:00

optimizer

Fix PlaceHolderVar mechanism's interaction with outer joins.

2010-09-28 14:19:00 -04:00

parser

Add a SECURITY LABEL command.

2010-09-27 20:55:27 -04:00

po

Remove cvs keywords from all files.

2010-09-20 22:08:53 +02:00

port

Convert cvsignore to gitignore, and add .gitignore for build targets.

2010-09-22 12:57:04 +02:00

postmaster

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2010-09-20 22:08:53 +02:00

regex

Remove cvs keywords from all files.

2010-09-20 22:08:53 +02:00

replication

Remove cvs keywords from all files.

2010-09-20 22:08:53 +02:00

rewrite

Remove cvs keywords from all files.

2010-09-20 22:08:53 +02:00

snowball

Convert cvsignore to gitignore, and add .gitignore for build targets.

2010-09-22 12:57:04 +02:00

storage

Remove cvs keywords from all files.

2010-09-20 22:08:53 +02:00

tcop

Add a SECURITY LABEL command.

2010-09-27 20:55:27 -04:00

tsearch

Remove cvs keywords from all files.

2010-09-20 22:08:53 +02:00

utils

Add "(change requires restart)" note to some postgresql.conf parameters.

2010-09-27 09:14:14 -04:00

.gitignore

Convert cvsignore to gitignore, and add .gitignore for build targets.

2010-09-22 12:57:04 +02:00

common.mk

Remove cvs keywords from all files.

2010-09-20 22:08:53 +02:00

Makefile

The port/pg_latch.c symlink ought to be removed by make distclean.

2010-09-21 16:53:25 -04:00

nls.mk

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2010-09-20 22:08:53 +02:00