Alvaro Herrera 5da9da71c4 Improve snapshot manager by keeping explicit track of snapshots. ... There are two ways to track a snapshot: there's the "registered" list, which is used for arbitrary long-lived snapshots; and there's the "active stack", which is used for the snapshot that is considered "active" at any time. This also allows users of snapshots to stop worrying about snapshot memory allocation and freeing, and about using PG_TRY blocks around ActiveSnapshot assignment. This is all done automatically now. As a consequence, this allows us to reset MyProc->xmin when there are no more snapshots registered in the current backend, reducing the impact that long-running transactions have on VACUUM.		2008-05-12 20:02:02 +00:00
..
access	Convert wal_sync_method to guc enum.	2008-05-12 08:35:05 +00:00
bootstrap	Update copyrights in source tree to 2008.	2008-01-01 19:46:01 +00:00
catalog	Change the rules for inherited CHECK constraints to be essentially the same	2008-05-09 23:32:05 +00:00
commands	Fix REASSIGN OWNED so that it works on procedural languages too.	2008-04-29 19:37:04 +00:00
executor	Since createplan.c no longer cares whether index operators are lossy, it has	2008-04-13 20:51:21 +00:00
lib	Update copyrights in source tree to 2008.	2008-01-01 19:46:01 +00:00
libpq	Code review for recent patch to terminate online backup during shutdown:	2008-04-26 22:47:40 +00:00
mb	Update copyrights in source tree to 2008.	2008-01-01 19:46:01 +00:00
nodes	Change the rules for inherited CHECK constraints to be essentially the same	2008-05-09 23:32:05 +00:00
optimizer	Allow the planner's estimate of the fraction of a cursor's rows that will be	2008-05-02 21:26:10 +00:00
parser	Restructure some header files a bit, in particular heapam.h, by removing some	2008-05-12 00:00:54 +00:00
port	Replace time_t with pg_time_t (same values, but always int64) in on-disk	2008-02-17 02:09:32 +00:00
postmaster	Update copyrights in source tree to 2008.	2008-01-01 19:46:01 +00:00
regex	Convert three more guc settings to enum type:	2008-04-02 14:42:56 +00:00
rewrite	Restructure some header files a bit, in particular heapam.h, by removing some	2008-05-12 00:00:54 +00:00
snowball	Update copyrights in source tree to 2008.	2008-01-01 19:46:01 +00:00
storage	Improve snapshot manager by keeping explicit track of snapshots.	2008-05-12 20:02:02 +00:00
tcop	Implement enum type for guc parameters, and convert a couple of existing	2008-03-10 12:55:13 +00:00
tsearch	Allow float8, int8, and related datatypes to be passed by value on machines	2008-04-21 00:26:47 +00:00
utils	Improve snapshot manager by keeping explicit track of snapshots.	2008-05-12 20:02:02 +00:00
c.h	Allow float8, int8, and related datatypes to be passed by value on machines	2008-04-21 00:26:47 +00:00
fmgr.h	Allow float8, int8, and related datatypes to be passed by value on machines	2008-04-21 00:26:47 +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	Enable probes to work with Mac OS X Leopard and other OSes that will	2008-03-17 19:44:41 +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_manual.h	Extend yesterday's patch making BLCKSZ and RELSEG_SIZE configurable to also	2008-05-02 19:52:37 +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_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	Teach ANALYZE to distinguish dead and in-doubt tuples, which it formerly	2008-04-03 16:27:25 +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_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
postgres.h	Allow float8, int8, and related datatypes to be passed by value on machines	2008-04-21 00:26:47 +00:00
rusagestub.h	Update copyrights in source tree to 2008.	2008-01-01 19:46:01 +00:00