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Alvaro Herrera 3957b58b88 Fix ALTER TABLE / SET TYPE for irregular inheritance 
If inherited tables don't have exactly the same schema, the USING clause
in an ALTER TABLE / SET DATA TYPE misbehaves when applied to the
children tables since commit 9550e8348b.  Starting with that commit,
the attribute numbers in the USING expression are fixed during parse
analysis.  This can lead to bogus errors being reported during
execution, such as:
   ERROR:  attribute 2 has wrong type
   DETAIL:  Table has type smallint, but query expects integer.

Since it wouldn't do to revert to the original coding, we now apply a
transformation to map the attribute numbers to the correct ones for each
child.

Reported by Justin Pryzby
Analysis by Tom Lane; patch by me.
Discussion: https://postgr.es/m/20170102225618.GA10071@telsasoft.com
2017-01-09 19:26:58 -03:00
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contrib Invalidate cached plans on FDW option changes. 2017-01-06 14:12:52 -05:00
doc Use 'use strict' in all Perl programs 2017-01-05 12:34:48 -05:00
src Fix ALTER TABLE / SET TYPE for irregular inheritance 2017-01-09 19:26:58 -03:00
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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:

	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/.