Tom Lane a2822fb933 Support index-only scans using the visibility map to avoid heap fetches. ... When a btree index contains all columns required by the query, and the visibility map shows that all tuples on a target heap page are visible-to-all, we don't need to fetch that heap page. This patch depends on the previous patches that made the visibility map reliable. There's a fair amount left to do here, notably trying to figure out a less chintzy way of estimating the cost of an index-only scan, but the core functionality seems ready to commit. Robert Haas and Ibrar Ahmed, with some previous work by Heikki Linnakangas.		2011-10-07 20:14:13 -04:00
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access	Support index-only scans using the visibility map to avoid heap fetches.	2011-10-07 20:14:13 -04:00
bootstrap	Simplify handling of the timezone GUC by making initdb choose the default.	2011-09-09 17:59:11 -04:00
catalog	ProcedureCreate neglected to record dependencies on default expressions.	2011-10-03 12:13:15 -04:00
commands	Support index-only scans using the visibility map to avoid heap fetches.	2011-10-07 20:14:13 -04:00
executor	Support index-only scans using the visibility map to avoid heap fetches.	2011-10-07 20:14:13 -04:00
foreign	deflist_to_tuplestore dumped core on an option with no value.	2011-09-13 11:36:49 -04:00
lib	Stamp copyrights for year 2011.	2011-01-01 13:18:15 -05:00
libpq	Remove many -Wcast-qual warnings	2011-09-11 21:54:32 +03:00
main	Add postmaster -C option to query configuration parameters, and have	2011-10-06 09:38:39 -04:00
nodes	Support index-only scans using the visibility map to avoid heap fetches.	2011-10-07 20:14:13 -04:00
optimizer	Support index-only scans using the visibility map to avoid heap fetches.	2011-10-07 20:14:13 -04:00
parser	Improve generated column names for cases involving sub-SELECTs.	2011-10-01 14:01:46 -04:00
po	Translation updates	2011-08-17 14:07:46 +03:00
port	Remove unnecessary #include references, per pgrminclude script.	2011-09-01 10:04:27 -04:00
postmaster	Add postmaster -C option to query configuration parameters, and have	2011-10-06 09:38:39 -04:00
regex	Add markers for skips.	2011-08-26 18:15:13 -04:00
replication	Ensure walsenders can be SIGTERMed while in non-walsender code	2011-10-06 21:43:14 +02:00
rewrite	Rearrange planner to save the whole PlannerInfo (subroot) for a subquery.	2011-09-03 15:36:24 -04:00
snowball	Remove unnecessary #include references, per pgrminclude script.	2011-09-01 10:04:27 -04:00
storage	Allow snapshot references to still work during transaction abort.	2011-09-26 22:25:28 -04:00
tcop	Support index-only scans using the visibility map to avoid heap fetches.	2011-10-07 20:14:13 -04:00
tsearch	Remove many -Wcast-qual warnings	2011-09-11 21:54:32 +03:00
utils	Support index-only scans using the visibility map to avoid heap fetches.	2011-10-07 20:14:13 -04:00
.gitignore	Add gitignore for mingw/cygwin build outputs	2011-06-09 18:11:47 +02:00
Makefile	Fix symlink for errcodes.h so it works in VPATH builds from tarballs.	2011-06-22 13:08:08 -04:00
common.mk	Workaround for recursive make breakage	2011-01-13 09:32:06 +02:00
nls.mk	Add the possibility to pass --flag arguments to xgettext calls	2011-06-27 00:37:21 +03:00