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Tom Lane f7c5ff3d6d Fix plpgsql's exec_eval_expr() to ensure it returns a sane type OID 
even when the expression is a query that returns no rows.

So far as I can tell, the only caller that actually fails when a garbage
OID is returned is exec_stmt_case(), which is new in 8.4 --- in all other
cases, we might make a useless trip through casting logic, but we won't
fail since the isnull flag will be set.  Hence, backpatch only to 8.4,
just in case there are apps out there that aren't expecting an error to
be thrown if the query returns more or less than one column.  (Which seems
unlikely, since the error would be thrown if the query ever did return a
row; but it's possible there's some never-exercised code out there.)

Per report from Mario Splivalo.
2010-04-14 23:52:10 +00:00
config Don't link PL/Python against LOCALMODLIBS 2010-03-17 22:02:44 +00:00
contrib Make dmetaphone.c safe for pgindent and fussy compilers. Still to do: make it properly encoding aware w.r.t. chars U+00C7 and U+00D1. 2010-04-05 02:46:20 +00:00
doc Doc change: anyways -> anyway; Erik Rijkers 2010-04-14 02:36:04 +00:00
src Fix plpgsql's exec_eval_expr() to ensure it returns a sane type OID 2010-04-14 23:52:10 +00:00
aclocal.m4
configure Don't link PL/Python against LOCALMODLIBS 2010-03-17 22:02:44 +00:00
configure.in Revert version stamping in wrong branch 2010-02-19 18:42:30 +00:00
COPYRIGHT Update copyright for the year 2010. 2010-01-02 16:58:17 +00:00
GNUmakefile.in Separate targets "make docs" and "make install-docs" for the documentation 2010-03-30 00:10:46 +00:00
Makefile Add new make targets "world", "install-world" and "installcheck-world" to build, install and check just about everything. 2010-01-28 23:59:52 +00:00
README
README.CVS

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:

	http://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.  Changes between all PostgreSQL releases are recorded in the
file HISTORY.  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
http://www.postgresql.org/download/.  For more information look at our
web site located at http://www.postgresql.org/.