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Tom Lane 697dd1925f Remove bogus assertion in transformExpressionList(). 
I think when I added this assertion (in commit 8f889b108), I was only
thinking of the use of transformExpressionList at top level of INSERT
and VALUES.  But it's also called by transformRowExpr(), which can
certainly occur in an UPDATE targetlist, so it's inappropriate to
suppose that p_multiassign_exprs must be empty.  Besides, since the
input is not expected to contain ResTargets, there's no reason it
should contain MultiAssignRefs either.  Hence this code need not
be concerned about the state of p_multiassign_exprs, and we should
just drop the assertion.

Per bug #17236 from ocean_li_996.  It's been wrong for years,
so back-patch to all supported branches.

Discussion: https://postgr.es/m/17236-3210de9bcba1d7ca@postgresql.org
 		2021-10-19 11:35:15 -04:00
config Adjust configure to insist on Perl version >= 5.8.3. 2021-10-07 14:26:17 -04:00
contrib postgres_fdw: Move comments about elog level in (sub)abort cleanup. 2021-10-13 19:00:00 +09:00
doc pg_amcheck: avoid unhelpful verification attempts. 2021-10-13 14:08:12 -07:00
src Remove bogus assertion in transformExpressionList(). 2021-10-19 11:35:15 -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
.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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COPYRIGHT Update copyright for 2021 2021-01-02 13:06:25 -05:00
GNUmakefile.in add missing tag from commit b8c4261e5e 2021-07-01 15:47:46 -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
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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/.