Simon Riggs 0ef0396ae1 Reduce lock levels of some trigger DDL and add FKs
Reduce lock levels to ShareRowExclusive for the following SQL
 CREATE TRIGGER (but not DROP or ALTER)
 ALTER TABLE ENABLE TRIGGER
 ALTER TABLE DISABLE TRIGGER
 ALTER TABLE … ADD CONSTRAINT FOREIGN KEY

Original work by Simon Riggs, extracted and refreshed by Andreas Karlsson
New test cases added by Andreas Karlsson
Reviewed by Noah Misch, Andres Freund, Michael Paquier and Simon Riggs
2015-04-05 11:37:08 -04:00
2015-04-02 16:26:49 -04:00
2013-08-13 20:08:44 -04:00
2010-09-20 22:08:53 +02:00
2015-01-06 11:43:47 -05:00
2014-02-12 18:16:17 -05:00
2011-02-15 06:52:12 +02:00

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
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system.  Copyright and license information can be found in the
file COPYRIGHT.  A comprehensive documentation set is included in this
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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/.
Description
he World's Most Advanced Open Source Relational Database.
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