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Thomas Munro 695c5977c8 Optimize TransactionIdIsCurrentTransactionId(). 
If the passed in xid is the current top transaction, we can do a fast
check and exit early.  This should work well for the current heap but
also works very well for proposed AMs that don't use a separate xid
for subtransactions.

Author: Ashwin Agrawal, based on a suggestion from Andres Freund
Reviewed-by: Thomas Munro
Discussion: https://postgr.es/m/CALfoeiv0k3hkEb3Oqk%3DziWqtyk2Jys1UOK5hwRBNeANT_yX%2Bng%40mail.gmail.com
2019-11-11 16:33:04 +13:00
..
backend Optimize TransactionIdIsCurrentTransactionId(). 2019-11-11 16:33:04 +13:00
bin Fix integer-overflow edge case detection in interval_mul and pgbench. 2019-11-07 11:22:58 -05:00
common Make StringInfo available to frontend code. 2019-11-05 14:56:40 -08:00
fe_utils Split all OBJS style lines in makefiles into one-line-per-entry style. 2019-11-05 14:41:07 -08:00
include Pass ItemPointer not HeapTuple to IndexBuildCallback. 2019-11-08 11:49:29 -08:00
interfaces Move declaration of ecpg_gettext() to a saner place. 2019-11-07 14:21:52 -05:00
makefiles Select CFLAGS_SL at configure time, not in platform-specific Makefiles. 2019-10-21 12:32:35 -04:00
pl Fix new COPY test of PL/pgSQL with VPATH builds 2019-11-09 15:41:34 +09:00
port Split all OBJS style lines in makefiles into one-line-per-entry style. 2019-11-05 14:41:07 -08:00
template Select CFLAGS_SL at configure time, not in platform-specific Makefiles. 2019-10-21 12:32:35 -04:00
test Fix subscription test 2019-11-09 13:19:27 +01:00
timezone Split all OBJS style lines in makefiles into one-line-per-entry style. 2019-11-05 14:41:07 -08:00
tools Make StringInfo available to frontend code. 2019-11-05 14:56:40 -08:00
tutorial Phase 2 pgindent run for v12. 2019-05-22 13:04:48 -04:00
.gitignore Convert cvsignore to gitignore, and add .gitignore for build targets. 2010-09-22 12:57:04 +02:00
DEVELOPERS Replace a couple of references to files that no longer exist in the source 2009-05-04 08:08:47 +00:00
Makefile Fix partial-build problems introduced by having more generated headers. 2018-04-09 16:42:10 -04:00
Makefile.global.in Select CFLAGS_SL at configure time, not in platform-specific Makefiles. 2019-10-21 12:32:35 -04:00
Makefile.shlib Clean up MinGW def file generation 2019-10-20 10:19:13 +02:00
nls-global.mk NLS: Fix backend gettext triggers 2019-09-23 09:04:20 +02:00