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postgresql/src/include
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Tom Lane f41803bb39 Refactor planner's pathkeys data structure to create a separate, explicit 
representation of equivalence classes of variables.  This is an extensive
rewrite, but it brings a number of benefits:
* planner no longer fails in the presence of "incomplete" operator families
that don't offer operators for every possible combination of datatypes.
* avoid generating and then discarding redundant equality clauses.
* remove bogus assumption that derived equalities always use operators
named "=".
* mergejoins can work with a variety of sort orders (e.g., descending) now,
instead of tying each mergejoinable operator to exactly one sort order.
* better recognition of redundant sort columns.
* can make use of equalities appearing underneath an outer join.
2007-01-20 20:45:41 +00:00
..
access Refactor the index AM API slightly: move currentItemData and 2007-01-20 18:43:35 +00:00
bootstrap Update CVS HEAD for 2007 copyright. Back branches are typically not 2007-01-05 22:20:05 +00:00
catalog Fix xmlconcat by properly merging the XML declarations. Add aggregate 2007-01-20 09:27:20 +00:00
commands Update CVS HEAD for 2007 copyright. Back branches are typically not 2007-01-05 22:20:05 +00:00
executor Change the planner-to-executor API so that the planner tells the executor 2007-01-10 18:06:05 +00:00
lib Update CVS HEAD for 2007 copyright. Back branches are typically not 2007-01-05 22:20:05 +00:00
libpq Update CVS HEAD for 2007 copyright. Back branches are typically not 2007-01-05 22:20:05 +00:00
mb Fix machine-dependent crash in sqlchar_to_unicode(). Get rid of 2006-12-24 00:57:48 +00:00
nodes Refactor planner's pathkeys data structure to create a separate, explicit 2007-01-20 20:45:41 +00:00
optimizer Refactor planner's pathkeys data structure to create a separate, explicit 2007-01-20 20:45:41 +00:00
parser Support ORDER BY ... NULLS FIRST/LAST, and add ASC/DESC/NULLS FIRST/NULLS LAST 2007-01-09 02:14:16 +00:00
port Allow Borland CC to compile libpq and psql. 2007-01-11 02:42:31 +00:00
postmaster Arrange for autovacuum to be killed when another operation wants to be alone 2007-01-16 13:28:57 +00:00
regex Standard pgindent run for 8.1. 2005-10-15 02:49:52 +00:00
rewrite Update CVS HEAD for 2007 copyright. Back branches are typically not 2007-01-05 22:20:05 +00:00
storage Extend yesterday's patch so that the bgwriter is also told to forget 2007-01-17 16:25:01 +00:00
tcop Update CVS HEAD for 2007 copyright. Back branches are typically not 2007-01-05 22:20:05 +00:00
utils Refactor planner's pathkeys data structure to create a separate, explicit 2007-01-20 20:45:41 +00:00
c.h Allow Borland CC to compile libpq and psql. 2007-01-11 02:39:52 +00:00
fmgr.h Update CVS HEAD for 2007 copyright. Back branches are typically not 2007-01-05 22:20:05 +00:00
funcapi.h Update CVS HEAD for 2007 copyright. Back branches are typically not 2007-01-05 22:20:05 +00:00
getaddrinfo.h Update CVS HEAD for 2007 copyright. Back branches are typically not 2007-01-05 22:20:05 +00:00
getopt_long.h Update CVS HEAD for 2007 copyright. Back branches are typically not 2007-01-05 22:20:05 +00:00
Makefile Allow installation into directories containing spaces in the name. 2005-12-09 21:19:36 +00:00
miscadmin.h Update CVS HEAD for 2007 copyright. Back branches are typically not 2007-01-05 22:20:05 +00:00
pg_config.h.in finite() no longer used; remove finite() platform-specific 2007-01-02 21:25:50 +00:00
pg_config.h.win32 Stamp major release 8.3.0, and increment library version numbers. 2007-01-05 20:54:43 +00:00
pg_config_manual.h Add built-in userlock manipulation functions to replace the former 2006-09-18 22:40:40 +00:00
pg_trace.h pgindent run for 8.2. 2006-10-04 00:30:14 +00:00
pgstat.h Update CVS HEAD for 2007 copyright. Back branches are typically not 2007-01-05 22:20:05 +00:00
pgtime.h Update CVS HEAD for 2007 copyright. Back branches are typically not 2007-01-05 22:20:05 +00:00
port.h Change the sed rules in the regression test for pg_regress hackery to create 2007-01-19 16:42:24 +00:00
postgres.h Update CVS HEAD for 2007 copyright. Back branches are typically not 2007-01-05 22:20:05 +00:00
postgres_ext.h Pgindent run for 8.0. 2004-08-29 05:07:03 +00:00
postgres_fe.h Update CVS HEAD for 2007 copyright. Back branches are typically not 2007-01-05 22:20:05 +00:00
rusagestub.h Update CVS HEAD for 2007 copyright. Back branches are typically not 2007-01-05 22:20:05 +00:00