Tom Lane 57664ed25e Wrap appendrel member outputs in PlaceHolderVars in additional cases. ... Add PlaceHolderVar wrappers as needed to make UNION ALL sub-select output expressions appear non-constant and distinct from each other. This makes the world safe for add_child_rel_equivalences to do what it does. Before, it was possible for that function to add identical expressions to different EquivalenceClasses, which logically should imply merging such ECs, which would be wrong; or to improperly add a constant to an EquivalenceClass, drastically changing its behavior. Per report from Teodor Sigaev. The only currently known consequence of this bug is "MergeAppend child's targetlist doesn't match MergeAppend" planner failures in 9.1 and later. I am suspicious that there may be other failure modes that could affect older release branches; but in the absence of any hard evidence, I'll refrain from back-patching further than 9.1.		2011-11-08 21:14:21 -05:00
..
access	Make VACUUM avoid waiting for a cleanup lock, where possible.	2011-11-07 21:39:40 -05:00
bootstrap	Split work of bgwriter between 2 processes: bgwriter and checkpointer.	2011-11-01 17:14:47 +00:00
catalog	Oops, forgot to fix the catversion when I committed the range types patch.	2011-11-06 14:36:36 +02:00
commands	Support range data types.	2011-11-03 13:42:15 +02:00
datatype	Move Timestamp/Interval typedefs and basic macros into datatype/timestamp.h.	2011-09-09 13:23:41 -04:00
executor	Rearrange the implementation of index-only scans.	2011-10-11 14:21:30 -04:00
foreign	pgindent run before PG 9.1 beta 1.	2011-04-10 11:42:00 -04:00
lib	Add missing format attributes	2011-09-10 23:12:46 +03:00
libpq	Move Timestamp/Interval typedefs and basic macros into datatype/timestamp.h.	2011-09-09 13:23:41 -04:00
mb	Improve make_greater_string() with encoding-specific incrementers.	2011-10-29 14:22:20 -04:00
nodes	Support range data types.	2011-11-03 13:42:15 +02:00
optimizer	Wrap appendrel member outputs in PlaceHolderVars in additional cases.	2011-11-08 21:14:21 -05:00
parser	Support synchronization of snapshots through an export/import procedure.	2011-10-22 18:23:30 -04:00
port	Revert "Force use of "%I64d" format for 64 bit ints on MinGW."	2011-04-27 14:55:18 -04:00
portability	Stamp copyrights for year 2011.	2011-01-01 13:18:15 -05:00
postmaster	Refactor xlog.c to create src/backend/postmaster/startup.c	2011-11-02 14:25:01 +00:00
regex	Teach regular expression operators to honor collations.	2011-04-10 18:03:09 -04:00
replication	Split walsender.h in public/private headers	2011-09-13 21:42:49 -03:00
rewrite	Try to acquire relation locks in RangeVarGetRelid.	2011-07-08 22:19:30 -04:00
snowball	Add markers for skips.	2011-08-26 18:15:13 -04:00
storage	Derive oldestActiveXid at correct time for Hot Standby.	2011-11-02 08:54:56 +00:00
tcop	Clean up the #include mess a little.	2011-09-04 01:13:16 -04:00
tsearch	Improve comments for TSLexeme data structure.	2011-11-03 18:47:28 -04:00
utils	Make DatumGetInetP() unpack inet datums with a 1-byte header, and add	2011-11-08 22:39:43 +02:00
.gitignore	Convert cvsignore to gitignore, and add .gitignore for build targets.	2010-09-22 12:57:04 +02:00
c.h	Use a macro variable PG_PRINTF_ATTRIBUTE for the style used for checking printf type functions.	2011-04-28 10:56:14 -04:00
fmgr.h	Pgindent run before 9.1 beta2.	2011-06-09 14:32:50 -04:00
funcapi.h	Stamp copyrights for year 2011.	2011-01-01 13:18:15 -05:00
getaddrinfo.h	Stamp copyrights for year 2011.	2011-01-01 13:18:15 -05:00
getopt_long.h	Stamp copyrights for year 2011.	2011-01-01 13:18:15 -05:00
Makefile	Add datatype directory to SUBDIRS.	2011-09-11 04:07:12 +09:00
miscadmin.h	Add postmaster/postgres undocumented -b option for binary upgrades.	2011-04-25 12:00:21 -04:00
pg_config.h.in	Make pgbench use erand48() rather than random().	2011-08-03 16:26:40 -04:00
pg_config.h.win32	Correct the lie in pg_config.h.win32 about having inttypes.h.	2011-08-08 08:52:05 -04:00
pg_config_manual.h	Revert accidental change to pg_config_manual.h.	2011-10-09 22:20:44 -04:00
pg_trace.h	Add markers.	2011-08-26 18:15:14 -04:00
pgstat.h	Code review for pgstat_get_crashed_backend_activity patch.	2011-10-21 16:36:04 -04:00
pgtime.h	Simplify handling of the timezone GUC by making initdb choose the default.	2011-09-09 17:59:11 -04:00
port.h	setlocale() on Windows doesn't work correctly if the locale name contains	2011-09-01 11:08:32 +03:00
postgres.h	Stamp copyrights for year 2011.	2011-01-01 13:18:15 -05:00
postgres_ext.h	Remove cvs keywords from all files.	2010-09-20 22:08:53 +02:00
postgres_fe.h	Stamp copyrights for year 2011.	2011-01-01 13:18:15 -05:00
rusagestub.h	Stamp copyrights for year 2011.	2011-01-01 13:18:15 -05:00
windowapi.h	Stamp copyrights for year 2011.	2011-01-01 13:18:15 -05:00