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Tom Lane 3071bbfe44 Fix null-pointer crash in postgres_fdw's conversion_error_callback. 
Commit c7b7311f6 adjusted conversion_error_callback to always use
information from the query's rangetable, to avoid doing catalog lookups
in an already-failed transaction.  However, as a result of the utterly
inadequate documentation for make_tuple_from_result_row, I failed to
realize that fsstate could be NULL in some contexts.  That led to a
crash if we got a conversion error in such a context.  Fix by falling
back to the previous coding when fsstate is NULL.  Improve the
commentary, too.

Per report from Andrey Borodin.  Back-patch to 9.6, like the previous
patch.

Discussion: https://postgr.es/m/08916396-55E4-4D68-AB3A-BD6066F9E5C0@yandex-team.ru
2021-10-06 15:50:24 -04:00
config Remove configure-time thread safety checking (thread_test.c). 2021-07-24 12:16:39 -04:00
contrib Fix null-pointer crash in postgres_fdw's conversion_error_callback. 2021-10-06 15:50:24 -04:00
doc Flexible options for CREATE_REPLICATION_SLOT. 2021-10-05 12:52:49 -04:00
src Doc: improve timezone/README's recipe for tracking Windows zones. 2021-10-06 13:38:42 -04:00
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.git-blame-ignore-revs Add historic commit to git-blame-ignore-revs file. 2021-08-31 12:57:52 -07:00
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aclocal.m4
configure Remove configure-time thread safety checking (thread_test.c). 2021-07-24 12:16:39 -04:00
configure.ac Remove configure-time thread safety checking (thread_test.c). 2021-07-24 12:16:39 -04:00
COPYRIGHT
GNUmakefile.in add missing tag from commit b8c4261e5e 2021-07-01 15:47:46 -04:00
HISTORY
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README.git

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/.