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Tom Lane 8cffc4f5bd Docs: be explicit about datatype matching for lead/lag functions. 
The default argument, if given, has to be of exactly the same datatype
as the first argument; but this was not stated in so many words, and
the error message you get about it might not lead your thought in the
right direction.  Per bug #13587 from Robert McGehee.

A quick scan says that these are the only two built-in functions with two
anyelement arguments and no other polymorphic arguments.  There are plenty
of cases of, eg, anyarray and anyelement, but those seem less likely to
confuse.  For instance this doesn't seem terribly hard to figure out:
"function array_remove(integer[], numeric) does not exist".  So I've
contented myself with fixing these two cases.
2015-08-25 19:12:34 -04:00
config Blacklist xlc 32-bit inlining. 2015-07-29 22:53:58 -04:00
contrib contrib/isn now needs a .gitignore file. 2015-08-02 23:57:55 -04:00
doc Docs: be explicit about datatype matching for lead/lag functions. 2015-08-25 19:12:34 -04:00
src Avoid O(N^2) behavior when enlarging SPI tuple table in spi_printtup(). 2015-08-21 20:32:33 -04:00
.gitignore Add gitignore for mingw/cygwin build outputs 2011-06-09 18:11:47 +02:00
aclocal.m4 Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00
configure AIX: Test the -qlonglong option before use. 2015-07-17 03:02:18 -04:00
configure.in AIX: Test the -qlonglong option before use. 2015-07-17 03:02:18 -04:00
COPYRIGHT Update copyright for 2015 2015-01-06 11:43:46 -05:00
GNUmakefile.in Don't generate plain-text HISTORY and src/test/regress/README anymore. 2014-02-10 20:48:20 -05:00
HISTORY Improve text of stub HISTORY file. 2014-02-12 18:16:32 -05:00
Makefile Allow make check in PL directories 2011-02-15 06:52:12 +02:00
README Don't generate plain-text HISTORY and src/test/regress/README anymore. 2014-02-10 20:48:20 -05:00
README.git Don't generate plain-text HISTORY and src/test/regress/README anymore. 2014-02-10 20:48:20 -05:00

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:

	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.  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/.