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postgresql/src/include/nodes
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Tom Lane 282d2a03dd HOT updates. When we update a tuple without changing any of its indexed 
columns, and the new version can be stored on the same heap page, we no longer
generate extra index entries for the new version.  Instead, index searches
follow the HOT-chain links to ensure they find the correct tuple version.

In addition, this patch introduces the ability to "prune" dead tuples on a
per-page basis, without having to do a complete VACUUM pass to recover space.
VACUUM is still needed to clean up dead index entries, however.

Pavan Deolasee, with help from a bunch of other people.
 		2007-09-20 17:56:33 +00:00
..
bitmapset.h Update CVS HEAD for 2007 copyright. Back branches are typically not 2007-01-05 22:20:05 +00:00
execnodes.h HOT updates. When we update a tuple without changing any of its indexed 2007-09-20 17:56:33 +00:00
makefuncs.h Make eval_const_expressions() preserve typmod when simplifying something like 2007-09-06 17:31:58 +00:00
memnodes.h Adjust the output of MemoryContextStats() so that the stats for a 2007-08-07 06:25:14 +00:00
nodeFuncs.h Update CVS HEAD for 2007 copyright. Back branches are typically not 2007-01-05 22:20:05 +00:00
nodes.h Support SET FROM CURRENT in CREATE/ALTER FUNCTION, ALTER DATABASE, ALTER ROLE. 2007-09-03 18:46:30 +00:00
params.h First phase of plan-invalidation project: create a plan cache management 2007-03-13 00:33:44 +00:00
parsenodes.h Support SET FROM CURRENT in CREATE/ALTER FUNCTION, ALTER DATABASE, ALTER ROLE. 2007-09-03 18:46:30 +00:00
pg_list.h Update CVS HEAD for 2007 copyright. Back branches are typically not 2007-01-05 22:20:05 +00:00
plannodes.h HOT updates. When we update a tuple without changing any of its indexed 2007-09-20 17:56:33 +00:00
primnodes.h Make ARRAY(SELECT ...) return an empty array, rather than a NULL, when the 2007-08-26 21:44:25 +00:00
print.h Turn the rangetable used by the executor into a flat list, and avoid storing 2007-02-22 22:00:26 +00:00
readfuncs.h Update CVS HEAD for 2007 copyright. Back branches are typically not 2007-01-05 22:20:05 +00:00
relation.h HOT updates. When we update a tuple without changing any of its indexed 2007-09-20 17:56:33 +00:00
tidbitmap.h Update CVS HEAD for 2007 copyright. Back branches are typically not 2007-01-05 22:20:05 +00:00
value.h Update CVS HEAD for 2007 copyright. Back branches are typically not 2007-01-05 22:20:05 +00:00