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Robert Haas cce1ecfc77 Adjust assertion in GetCurrentCommandId. 
currentCommandIdUsed is only used to skip redundant increments of the
command counter, and CommandCounterIncrement() is categorically denied
under parallelism anyway.  Therefore, it's OK for
GetCurrentCommandId() to mark the counter value used, as long as it
happens in the leader, not a worker.

Prior to commit e9baa5e9fa, the slightly
incorrect check didn't matter, but now it does.  A test case added by
commit 1804284042 uncovered the problem
by accident; it caused failures with force_parallel_mode=on/regress.

Report and review by Andres Freund.  Patch by me.

Discussion: http://postgr.es/m/20171221143106.5lhtygohvmazli3x@alap3.anarazel.de
2017-12-21 13:19:59 -05:00
config Try harder to detect unavailability of __builtin_mul_overflow(int64). 2017-12-17 11:52:22 -05:00
contrib Rethink MemoryContext creation to improve performance. 2017-12-13 13:55:16 -05:00
doc Add parallel-aware hash joins. 2017-12-21 00:43:41 -08:00
src Adjust assertion in GetCurrentCommandId. 2017-12-21 13:19:59 -05:00
.dir-locals.el emacs: Set indent-tabs-mode in perl-mode 2015-04-12 23:53:23 -04:00
.gitattributes Remove contrib/tsearch2. 2017-02-13 11:06:11 -05:00
.gitignore Add lcov --initial 2017-09-29 08:54:34 -04:00
aclocal.m4 Make configure check for IPC::Run when --enable-tap-tests is specified. 2017-06-15 15:56:12 -04:00
configure Try harder to detect unavailability of __builtin_mul_overflow(int64). 2017-12-17 11:52:22 -05:00
configure.in Provide overflow safe integer math inline functions. 2017-12-12 16:55:37 -08:00
COPYRIGHT Update copyright for 2017 2017-01-03 12:37:53 -05:00
GNUmakefile.in Have "make coverage" recurse into contrib as well 2016-09-05 18:44:36 -03:00
HISTORY Change documentation references to PG website to use https: not http: 2017-05-20 21:50:47 -04:00
Makefile Fix non-GNU makefiles for AIX make. 2017-11-30 00:57:22 -08:00
README Change documentation references to PG website to use https: not http: 2017-05-20 21:50:47 -04:00
README.git Change documentation references to PG website to use https: not http: 2017-05-20 21:50:47 -04:00

README 

PostgreSQL Database Management System
=====================================

This directory contains the source code distribution of the PostgreSQL
database management system.

PostgreSQL is an advanced object-relational database management system
that supports an extended subset of the SQL standard, including
transactions, foreign keys, subqueries, triggers, user-defined types
and functions.  This distribution also contains C language bindings.

PostgreSQL has many language interfaces, many of which are listed here:

	https://www.postgresql.org/download

See the file INSTALL for instructions on how to build and install
PostgreSQL.  That file also lists supported operating systems and
hardware platforms and contains information regarding any other
software packages that are required to build or run the PostgreSQL
system.  Copyright and license information can be found in the
file COPYRIGHT.  A comprehensive documentation set is included in this
distribution; it can be read as described in the installation
instructions.

The latest version of this software may be obtained at
https://www.postgresql.org/download/.  For more information look at our
web site located at https://www.postgresql.org/.