Tom Lane dcc685debb Fix pull_up_sublinks' failure to handle nested pull-up opportunities. ...

After finding an EXISTS or ANY sub-select that can be converted to a
semi-join or anti-join, we should recurse into the body of the sub-select.
This allows cases such as EXISTS-within-EXISTS to be optimized properly.
The original coding would leave the lower sub-select as a SubLink, which
is no better and often worse than what we can do with a join.  Per example
from Wayne Conrad.

Back-patch to 8.4.  There is a related issue in older versions' handling
of pull_up_IN_clauses, but they're lame enough anyway about the whole area
that it seems not worth the extra work to try to fix.

2011-05-02 15:57:28 -04:00

..

access

Fix SSI-related assertion failure.

2011-04-25 09:47:28 -04:00

bootstrap

Refactor broken CREATE TABLE IF NOT EXISTS support.

2011-04-25 16:55:11 -04:00

catalog

Refactor broken CREATE TABLE IF NOT EXISTS support.

2011-04-25 16:55:11 -04:00

commands

Make CLUSTER lock the old table's toast table before copying data.

2011-05-01 17:57:33 -04:00

executor

Refactor broken CREATE TABLE IF NOT EXISTS support.

2011-04-25 16:55:11 -04:00

foreign

Clean up most -Wunused-but-set-variable warnings from gcc 4.6

2011-04-11 22:28:45 +03:00

lib

Stamp copyrights for year 2011.

2011-01-01 13:18:15 -05:00

libpq

Rephrase some not-supported error messages in pg_hba.conf processing.

2011-04-26 15:56:28 -04:00

main

Assorted minor changes to silence Windows compiler warnings.

2011-04-25 12:56:53 -04:00

nodes

Fix handling of collations in multi-row VALUES constructs.

2011-04-18 15:31:52 -04:00

optimizer

Fix pull_up_sublinks' failure to handle nested pull-up opportunities.

2011-05-02 15:57:28 -04:00

parser

Refactor broken CREATE TABLE IF NOT EXISTS support.

2011-04-25 16:55:11 -04:00

po

Remove cvs keywords from all files.

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

port

Use an explicit format string to keep the compiler happy.

2011-04-27 10:02:21 -04:00

postmaster

Add some casts to try to silence most of the remaining format warnings on MinGW-W64.

2011-04-28 15:05:58 -04:00

regex

Insert dummy "break"s to silence compiler complaints.

2011-04-10 18:44:07 -04:00

replication

Lowercase status labels in pg_stat_replication view.

2011-04-29 22:20:43 -04:00

rewrite

Clean up most -Wunused-but-set-variable warnings from gcc 4.6

2011-04-11 22:28:45 +03:00

snowball

Stamp copyrights for year 2011.

2011-01-01 13:18:15 -05:00

storage

Add fast paths for cases when no serializable transactions are running.

2011-04-25 09:52:01 -04:00

tcop

Refactor broken CREATE TABLE IF NOT EXISTS support.

2011-04-25 16:55:11 -04:00

tsearch

Improve aset.c's space management in contexts with small maxBlockSize.

2011-05-02 12:08:08 -04:00

utils

Improve aset.c's space management in contexts with small maxBlockSize.

2011-05-02 12:08:08 -04:00

.gitignore

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

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

common.mk

Workaround for recursive make breakage

2011-01-13 09:32:06 +02:00

Makefile

replication/repl_gram.h needs to be cleaned too ...

2011-03-10 00:12:38 -05:00

nls.mk

Revise the API for GUC variable assign hooks.

2011-04-07 00:12:02 -04:00