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postgresql/src/include/utils
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Robert Haas 86f31695f3 Add txid_current_ifassigned(). 
Add a variant of txid_current() that returns NULL if no transaction ID
is assigned.  This version can be used even on a standby server,
although it will always return NULL since no transaction IDs can be
assigned during recovery.

Craig Ringer, per suggestion from Jim Nasby.  Reviewed by Petr Jelinek
and by me.
2016-08-23 10:30:52 -04:00
..
.gitignore Avoid maintaining three separate copies of the error codes list. 2011-02-03 22:32:49 -05:00
acl.h pgindent run for 9.6 2016-06-09 18:02:36 -04:00
aclchk_internal.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
array.h In plpgsql, don't try to convert int2vector or oidvector to expanded array. 2016-08-18 14:49:08 -04:00
arrayaccess.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
ascii.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
attoptcache.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
builtins.h Add txid_current_ifassigned(). 2016-08-23 10:30:52 -04:00
bytea.h Extend sortsupport for text to more opclasses. 2016-02-03 14:29:53 -05:00
cash.h Add casts from int4 and int8 to numeric. 2011-04-05 09:35:43 -04:00
catcache.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
combocid.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
date.h Improve parsetree representation of special functions such as CURRENT_DATE. 2016-08-16 20:33:01 -04:00
datetime.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
datum.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
dynahash.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
dynamic_loader.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
elog.h pgindent run for 9.6 2016-06-09 18:02:36 -04:00
evtcache.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
expandeddatum.h Inline the easy cases in MakeExpandedObjectReadOnly(). 2016-06-03 18:34:05 -04:00
fmgrtab.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
formatting.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
geo_decls.h pgindent run for 9.6 2016-06-09 18:02:36 -04:00
guc.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
guc_tables.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
help_config.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
hsearch.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
index_selfuncs.h Restructure index access method API to hide most of it at the C level. 2016-01-17 19:36:59 -05:00
inet.h Refactor some network.c code to create cidr_set_masklen_internal(). 2016-08-23 09:39:54 -04:00
int8.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
inval.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
json.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
jsonapi.h pgindent run for 9.6 2016-06-09 18:02:36 -04:00
jsonb.h pgindent run for 9.6 2016-06-09 18:02:36 -04:00
logtape.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
lsyscache.h Improve index AMs' opclass validation procedures. 2016-01-21 19:47:15 -05:00
memdebug.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
memutils.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
nabstime.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
numeric.h Remove bogus dependencies on NUMERIC_MAX_PRECISION. 2016-08-14 15:06:01 -04:00
palloc.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
pg_crc.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
pg_locale.h Cope if platform declares mbstowcs_l(), but not locale_t, in <xlocale.h>. 2016-03-15 13:19:57 -04:00
pg_lsn.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
pg_rusage.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
plancache.h Avoid invalidating all foreign-join cached plans when user mappings change. 2016-07-15 17:23:02 -04:00
portal.h Fix TOAST access failure in RETURNING queries. 2016-08-07 17:46:08 -04:00
ps_status.h Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00
rangetypes.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
rel.h Restore foreign-key-aware estimation of join relation sizes. 2016-06-18 15:22:34 -04:00
relcache.h Restore foreign-key-aware estimation of join relation sizes. 2016-06-18 15:22:34 -04:00
relfilenodemap.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
relmapper.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
reltrigger.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
resowner.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
resowner_private.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
rls.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
ruleutils.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
sampling.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
selfuncs.h Support CREATE ACCESS METHOD 2016-03-23 23:01:35 -03:00
snapmgr.h Prevent "snapshot too old" from trying to return pruned TOAST tuples. 2016-08-03 16:50:01 -04:00
snapshot.h Add the "snapshot too old" feature 2016-04-08 14:36:30 -05:00
sortsupport.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
spccache.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
syscache.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
timeout.h Be more predictable about reporting "lock timeout" vs "statement timeout". 2016-05-27 10:40:20 -04:00
timestamp.h Improve parsetree representation of special functions such as CURRENT_DATE. 2016-08-16 20:33:01 -04:00
tqual.h Fix copy-and-pasteo in 81c766b3fd. 2016-08-05 16:21:38 -04:00
tuplesort.h Reuse abbreviated keys in ordered [set] aggregates. 2016-02-17 15:40:00 +05:30
tuplestore.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
typcache.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
tzparser.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
uuid.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
varbit.h Update copyright for 2016 2016-01-02 13:33:40 -05:00
xml.h Update copyright for 2016 2016-01-02 13:33:40 -05:00