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Tom Lane d5daae47db Fix construction of updated-columns bitmap in logical replication. 
Commit b9c130a1f failed to apply the publisher-to-subscriber column
mapping while checking which columns were updated.  Perhaps less
significantly, it didn't exclude dropped columns either.  This could
result in an incorrect updated-columns bitmap and thus wrong decisions
about whether to fire column-specific triggers on the subscriber while
applying updates.  In HEAD (since commit 9de77b545), it could also
result in accesses off the end of the colstatus array, as detected by
buildfarm member skink.  Fix the logic, and adjust 003_constraints.pl
so that the problem is exposed in unpatched code.

In HEAD, also add some assertions to check that we don't access off
the ends of these newly variable-sized arrays.

Back-patch to v10, as b9c130a1f was.

Discussion: https://postgr.es/m/CAH2-Wz=79hKQ4++c5A060RYbjTHgiYTHz=fw6mptCtgghH2gJA@mail.gmail.com
2020-07-20 13:40:16 -04:00
config Update config.guess and config.sub 2020-04-30 09:06:49 +02:00
contrib Update btree_gist extension for parallel query 2020-07-20 13:59:50 +03:00
doc Rename wal_keep_segments to wal_keep_size. 2020-07-20 13:30:18 +09:00
src Fix construction of updated-columns bitmap in logical replication. 2020-07-20 13:40:16 -04:00
.dir-locals.el Make Emacs perl-mode indent more like perltidy. 2019-01-13 11:32:31 -08:00
.editorconfig Add .editorconfig 2019-12-18 09:13:13 +01:00
.gitattributes gitattributes: Add new file 2019-11-12 08:13:55 +01:00
.gitignore Support for optimizing and emitting code in LLVM JIT provider. 2018-03-22 11:05:22 -07:00
aclocal.m4 Fix configure's AC_CHECK_DECLS tests to work correctly with clang. 2018-11-19 12:01:47 -05:00
configure Define OPENSSL_API_COMPAT 2020-07-19 12:14:42 +02:00
configure.in Define OPENSSL_API_COMPAT 2020-07-19 12:14:42 +02:00
COPYRIGHT Update copyrights for 2020 2020-01-01 12:21:45 -05:00
GNUmakefile.in Make install-tests target work with vpath builds 2020-05-31 18:33:00 -04:00
HISTORY Canonicalize some URLs 2020-02-10 20:47:50 +01:00
Makefile Don't unset MAKEFLAGS in non-GNU Makefile. 2019-06-25 09:36:21 +12:00
README Canonicalize some URLs 2020-02-10 20:47:50 +01:00
README.git Canonicalize some URLs 2020-02-10 20:47:50 +01:00

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/.