upstream/postgresql
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2026-04-15 22:10:45 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions
Base de données relationnelle
31975 commits 38 branches 679 tags 840 MiB
C 84.5%
PLpgSQL 6.1%
Perl 4.9%
Yacc 1.2%
Meson 0.7%
Other 2.4%
Find a file
Heikki Linnakangas 8f9622bbb3 Make DDL operations play nicely with Serializable Snapshot Isolation. 
Truncating or dropping a table is treated like deletion of all tuples, and
check for conflicts accordingly. If a table is clustered or rewritten by
ALTER TABLE, all predicate locks on the heap are promoted to relation-level
locks, because the tuple or page ids of any existing tuples will change and
won't be valid after rewriting the table. Arguably ALTER TABLE should be
treated like a mass-UPDATE of every row, but if you e.g change the datatype
of a column, you could also argue that it's just a change to the physical
layout, not a logical change. Reindexing promotes all locks on the index to
relation-level lock on the heap.

Kevin Grittner, with a lot of cosmetic changes by me.
2011-06-08 14:02:43 +03:00
config Adjust configure to use "+Olibmerrno" with HP-UX C compiler, if possible. 2011-05-26 17:29:33 -04:00
contrib Recode non-ASCII characters in source to UTF-8 2011-05-31 23:11:46 +03:00
doc Fix documentation reference to "above" example 2011-06-04 23:12:27 +03:00
src Make DDL operations play nicely with Serializable Snapshot Isolation. 2011-06-08 14:02:43 +03:00
.gitignore Add gitignore entries for Windows MSVC builds 2011-04-19 20:04:41 +03:00
aclocal.m4 Remove cvs keywords from all files. 2010-09-20 22:08:53 +02:00
configure Implement getpeereid() as a src/port compatibility function. 2011-06-02 13:05:01 -04:00
configure.in Implement getpeereid() as a src/port compatibility function. 2011-06-02 13:05:01 -04:00
COPYRIGHT Stamp copyrights for year 2011. 2011-01-01 13:18:15 -05:00
GNUmakefile.in Support "make check" in contrib 2011-04-25 22:27:11 +03:00
Makefile Allow make check in PL directories 2011-02-15 06:52:12 +02:00
README Remove useless whitespace at end of lines 2010-11-23 22:34:55 +02:00
README.git Trivial typo fix. 2010-09-21 14:16:00 -04:00

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.  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/.