upstream/postgresql
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2026-04-10 03:26:23 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions
Base de données relationnelle
20029 commits 38 branches 679 tags 837 MiB
C 84.5%
PLpgSQL 6.1%
Perl 4.9%
Yacc 1.2%
Meson 0.7%
Other 2.4%
Find a file
Tom Lane a41c4b218f Fix incorrect optimization of foreign-key checks. When an UPDATE on the 
referencing table does not change the tuple's FK column(s), we don't bother
to check the PK table since the constraint was presumably already valid.
However, the check is still necessary if the tuple was inserted by our own
transaction, since in that case the INSERT trigger will conclude it need not
make the check (since its version of the tuple has been deleted).  We got this
right for simple cases, but not when the insert and update are in different
subtransactions of the current top-level transaction; in such cases the FK
check would never be made at all.  (Hence, problem dates back to 8.0 when
subtransactions were added --- it's actually the subtransaction version of a
bug fixed in 7.3.5.)  Fix, and add regression test cases.  Report and fix by
Affan Salman.
2007-07-17 17:45:57 +00:00
config New version of mkinstalldirs fixes problems on Tru64 UNIX. 2005-01-08 09:54:29 +00:00
contrib Restrict non-superusers to password authenticated connections 2007-07-09 01:32:58 +00:00
doc Fix array_dims() example to be consistent with the data previously shown. 2007-06-07 14:50:18 +00:00
src Fix incorrect optimization of foreign-key checks. When an UPDATE on the 2007-07-17 17:45:57 +00:00
aclocal.m4 Add new auto-detection of thread flags. 2004-04-23 18:15:55 +00:00
configure Update configure for release 2007-04-20 03:44:17 +00:00
configure.in Update configure for release 2007-04-20 03:44:17 +00:00
COPYRIGHT Tag appropriate files for rc3 2004-12-31 22:04:05 +00:00
GNUmakefile.in Add installcheck-parallel target to top level makefiles. 2006-08-18 19:59:05 +00:00
Makefile Add installcheck-parallel target to top level makefiles. 2006-08-18 19:59:05 +00:00
README Remove more traces of libpgtcl from the source tree. Also, make some 2004-10-01 02:00:44 +00:00
README.CVS Some further editorializing on README.CVS. 2004-03-28 06:09:08 +00:00

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.

The JDBC, ODBC, C++, Python, and Tcl interfaces have been moved to the
PostgreSQL Projects Web Site at http://gborg.postgresql.org for separate
maintenance.  A Perl DBI/DBD driver is available from CPAN.

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
ftp://ftp.postgresql.org/pub/.  For more information look at our web
site located at http://www.postgresql.org/.