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postgresql/src/include/utils
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Tom Lane 82a47982f3 Arrange for SET LOCAL's effects to persist until the end of the current top 
transaction, unless rolled back or overridden by a SET clause for the same
variable attached to a surrounding function call.  Per discussion, these
seem the best semantics.  Note that this is an INCOMPATIBLE CHANGE: in 8.0
through 8.2, SET LOCAL's effects disappeared at subtransaction commit
(leading to behavior that made little sense at the SQL level).

I took advantage of the opportunity to rewrite and simplify the GUC variable
save/restore logic a little bit.  The old idea of a "tentative" value is gone;
it was a hangover from before we had a stack.  Also, we no longer need a stack
entry for every nesting level, but only for those in which a variable's value
actually changed.
 		2007-09-11 00:06:42 +00:00
..
acl.h Tsearch2 functionality migrates to core. The bulk of this work is by 2007-08-21 01:11:32 +00:00
array.h Tweak the API for per-datatype typmodin functions so that they are passed 2007-06-15 20:56:52 +00:00
ascii.h Update CVS HEAD for 2007 copyright. Back branches are typically not 2007-01-05 22:20:05 +00:00
builtins.h Provide for binary input/output of enums, to fix complaint from Merlin Moncure. 2007-09-04 16:41:43 +00:00
cash.h Widen the money type to 64 bits. 2007-01-03 01:19:51 +00:00
catcache.h Rename DLLIMPORT macro to PGDLLIMPORT to avoid conflict with 2007-07-25 12:22:54 +00:00
combocid.h Combine cmin and cmax fields of HeapTupleHeaders into a single field, by 2007-02-09 03:35:35 +00:00
date.h Fix up hash functions for datetime datatypes so that they don't take 2007-07-06 04:16:00 +00:00
datetime.h Minor comment fixes. 2007-06-12 16:01:31 +00:00
datum.h Update CVS HEAD for 2007 copyright. Back branches are typically not 2007-01-05 22:20:05 +00:00
dynahash.h Update CVS HEAD for 2007 copyright. Back branches are typically not 2007-01-05 22:20:05 +00:00
dynamic_loader.h Update CVS HEAD for 2007 copyright. Back branches are typically not 2007-01-05 22:20:05 +00:00
elog.h Provide for logfiles in machine readable CSV format. In consequence, rename 2007-08-19 01:41:25 +00:00
errcodes.h Implement XMLSERIALIZE for real. Analogously, make the xml to text cast 2007-02-03 14:06:56 +00:00
flatfiles.h Standard pgindent run for 8.1. 2005-10-15 02:49:52 +00:00
fmgrtab.h Update CVS HEAD for 2007 copyright. Back branches are typically not 2007-01-05 22:20:05 +00:00
formatting.h Update CVS HEAD for 2007 copyright. Back branches are typically not 2007-01-05 22:20:05 +00:00
geo_decls.h Replace direct assignments to VARATT_SIZEP(x) with SET_VARSIZE(x, len). 2007-02-27 23:48:10 +00:00
guc.h Arrange for SET LOCAL's effects to persist until the end of the current top 2007-09-11 00:06:42 +00:00
guc_tables.h Arrange for SET LOCAL's effects to persist until the end of the current top 2007-09-11 00:06:42 +00:00
help_config.h Update CVS HEAD for 2007 copyright. Back branches are typically not 2007-01-05 22:20:05 +00:00
hsearch.h Fix dynahash.c to suppress hash bucket splits while a hash_seq_search() scan 2007-04-26 23:24:46 +00:00
inet.h Support varlena fields with single-byte headers and unaligned storage. 2007-04-06 04:21:44 +00:00
int8.h Downgrade implicit casts to text to be assignment-only, except for the ones 2007-06-05 21:31:09 +00:00
inval.h Update CVS HEAD for 2007 copyright. Back branches are typically not 2007-01-05 22:20:05 +00:00
logtape.h Update CVS HEAD for 2007 copyright. Back branches are typically not 2007-01-05 22:20:05 +00:00
lsyscache.h Fix up text concatenation so that it accepts all the reasonable cases that 2007-06-06 23:00:50 +00:00
memutils.h Rename DLLIMPORT macro to PGDLLIMPORT to avoid conflict with 2007-07-25 12:22:54 +00:00
nabstime.h Update CVS HEAD for 2007 copyright. Back branches are typically not 2007-01-05 22:20:05 +00:00
numeric.h Replace direct assignments to VARATT_SIZEP(x) with SET_VARSIZE(x, len). 2007-02-27 23:48:10 +00:00
palloc.h Rename DLLIMPORT macro to PGDLLIMPORT to avoid conflict with 2007-07-25 12:22:54 +00:00
pg_crc.h Update CVS HEAD for 2007 copyright. Back branches are typically not 2007-01-05 22:20:05 +00:00
pg_locale.h Update CVS HEAD for 2007 copyright. Back branches are typically not 2007-01-05 22:20:05 +00:00
pg_lzcompress.h Fix up bad layout of some comments (probably pg_indent's fault), and 2007-08-04 21:53:00 +00:00
pg_rusage.h Update CVS HEAD for 2007 copyright. Back branches are typically not 2007-01-05 22:20:05 +00:00
plancache.h The session_replication_role actually can be changed at will during 2007-06-05 20:00:41 +00:00
portal.h RESET SESSION, plus related new DDL commands. Patch from Marko Kreen, 2007-04-12 06:53:49 +00:00
ps_status.h Add GUC update_process_title to control whether 'ps' display is updated 2006-06-27 22:16:44 +00:00
rel.h Fix up pgstats counting of live and dead tuples to recognize that committed 2007-05-27 03:50:39 +00:00
relcache.h Teach CLUSTER to skip writing WAL if not needed (ie, not using archiving) 2007-03-29 00:15:39 +00:00
resowner.h Rename DLLIMPORT macro to PGDLLIMPORT to avoid conflict with 2007-07-25 12:22:54 +00:00
selfuncs.h Apply a band-aid fix for the problem that 8.2 and up completely misestimate 2007-08-31 23:35:22 +00:00
syscache.h Tsearch2 functionality migrates to core. The bulk of this work is by 2007-08-21 01:11:32 +00:00
timestamp.h Fix up hash functions for datetime datatypes so that they don't take 2007-07-06 04:16:00 +00:00
tqual.h Fix oversight in async-commit patch: there were some places in heapam.c 2007-08-14 17:35:18 +00:00
tuplesort.h Add a line to the EXPLAIN ANALYZE output for a Sort node, showing the 2007-05-04 21:29:53 +00:00
tuplestore.h Teach tuplestore.c to throw away data before the "mark" point when the caller 2007-05-21 17:57:35 +00:00
typcache.h Update CVS HEAD for 2007 copyright. Back branches are typically not 2007-01-05 22:20:05 +00:00
tzparser.h Update CVS HEAD for 2007 copyright. Back branches are typically not 2007-01-05 22:20:05 +00:00
uuid.h Rename the uuid_t type to pg_uuid_t, to avoid a conflict with any 2007-01-28 20:25:38 +00:00
varbit.h Replace direct assignments to VARATT_SIZEP(x) with SET_VARSIZE(x, len). 2007-02-27 23:48:10 +00:00
xml.h XPath fixes: 2007-05-21 17:10:29 +00:00