Tom Lane e006a24ad1 Implement SEMI and ANTI joins in the planner and executor. (Semijoins replace ... the old JOIN_IN code, but antijoins are new functionality.) Teach the planner to convert appropriate EXISTS and NOT EXISTS subqueries into semi and anti joins respectively. Also, LEFT JOINs with suitable upper-level IS NULL filters are recognized as being anti joins. Unify the InClauseInfo and OuterJoinInfo infrastructure into "SpecialJoinInfo". With that change, it becomes possible to associate a SpecialJoinInfo with every join attempt, which permits some cleanup of join selectivity estimation. That needs to be taken much further than this patch does, but the next step is to change the API for oprjoin selectivity functions, which seems like material for a separate patch. So for the moment the output size estimates for semi and especially anti joins are quite bogus.		2008-08-14 18:48:00 +00:00
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access	Introduce the concept of relation forks. An smgr relation can now consist	2008-08-11 11:05:11 +00:00
bootstrap	Update copyrights in source tree to 2008.	2008-01-01 19:46:01 +00:00
catalog	Relation forks patch requires a catversion bump due to changes in the format	2008-08-11 13:58:46 +00:00
commands	Have autovacuum consider processing TOAST tables separately from their	2008-08-13 00:07:50 +00:00
executor	As noted by Andrew Gierth, there's really no need any more to force a junk	2008-07-26 19:15:35 +00:00
lib	Update copyrights in source tree to 2008.	2008-01-01 19:46:01 +00:00
libpq	Move ident authentication code into auth.c along with the other authenciation	2008-08-01 09:09:49 +00:00
mb	Move wchar2char() and char2wchar() from tsearch into /mb to be easier to	2008-06-18 18:42:54 +00:00
nodes	Implement SEMI and ANTI joins in the planner and executor. (Semijoins replace	2008-08-14 18:48:00 +00:00
optimizer	Implement SEMI and ANTI joins in the planner and executor. (Semijoins replace	2008-08-14 18:48:00 +00:00
parser	Teach the system how to use hashing for UNION. (INTERSECT/EXCEPT will follow,	2008-08-07 01:11:52 +00:00
port	Add $PostgreSQL$ markers to a lot of files that were missing them.	2008-05-17 01:28:26 +00:00
portability	Add support for tracking call counts and elapsed runtime for user-defined	2008-05-15 00:17:41 +00:00
postmaster	Introduce the concept of relation forks. An smgr relation can now consist	2008-08-11 11:05:11 +00:00
regex	Convert three more guc settings to enum type:	2008-04-02 14:42:56 +00:00
rewrite	Improve our #include situation by moving pointer types away from the	2008-06-19 00:46:06 +00:00
snowball	Update copyrights in source tree to 2008.	2008-01-01 19:46:01 +00:00
storage	Introduce the concept of relation forks. An smgr relation can now consist	2008-08-11 11:05:11 +00:00
tcop	Implement enum type for guc parameters, and convert a couple of existing	2008-03-10 12:55:13 +00:00
tsearch	Create a type-specific typanalyze routine for tsvector, which collects stats	2008-07-14 00:51:46 +00:00
utils	Implement SEMI and ANTI joins in the planner and executor. (Semijoins replace	2008-08-14 18:48:00 +00:00
c.h	Update source code comment about when to use gettext_noop().	2008-07-03 02:49:54 +00:00
fmgr.h	Add support for tracking call counts and elapsed runtime for user-defined	2008-05-15 00:17:41 +00:00
funcapi.h	Update copyrights in source tree to 2008.	2008-01-01 19:46:01 +00:00
getaddrinfo.h	Update copyrights in source tree to 2008.	2008-01-01 19:46:01 +00:00
getopt_long.h	Update copyrights in source tree to 2008.	2008-01-01 19:46:01 +00:00
Makefile	Move the "instr_time" typedef and associated macros into a new header	2008-05-14 19:10:29 +00:00
miscadmin.h	Prevent shutdown in normal mode if online backup is running, and	2008-04-23 13:44:59 +00:00
pg_config.h.in	Extend yesterday's patch making BLCKSZ and RELSEG_SIZE configurable to also	2008-05-02 19:52:37 +00:00
pg_config.h.win32	Provide for MSVC config equivalents of recently added configure options. Remove	2008-05-03 00:24:06 +00:00
pg_config_manual.h	Don't make --enable-cassert turn on RANDOMIZE_ALLOCATED_MEMORY automatically;	2008-07-12 02:28:43 +00:00
pg_trace.h	Enable probes to work with Mac OS X Leopard and other OSes that will	2008-03-17 19:44:41 +00:00
pgstat.h	Turn PGBE_ACTIVITY_SIZE into a GUC variable, track_activity_query_size.	2008-06-30 10:58:47 +00:00
pgtime.h	Update copyrights in source tree to 2008.	2008-01-01 19:46:01 +00:00
port.h	Fix rmtree() so that it keeps going after failure to remove any individual	2008-04-18 17:05:45 +00:00
postgres.h	Allow float8, int8, and related datatypes to be passed by value on machines	2008-04-21 00:26:47 +00:00
postgres_ext.h	Move NAMEDATALEN definition from postgres_ext.h to pg_config_manual.h. It	2007-02-06 09:16:08 +00:00
postgres_fe.h	Update copyrights in source tree to 2008.	2008-01-01 19:46:01 +00:00
rusagestub.h	Update copyrights in source tree to 2008.	2008-01-01 19:46:01 +00:00