mirrors/postgres
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
28,536 Commits 37 Branches 632 Tags 671 MiB
C 85.7%
PLpgSQL 5.8%
Perl 4.1%
Yacc 1.3%
Makefile 0.7%
Other 2.3%
683706b136
Go to file
Tom Lane 683706b136 Fix error cleanup failure caused by 8.4 changes in plpgsql to try to avoid 
memory leakage in error recovery.  We were calling FreeExprContext, and
therefore invoking ExprContextCallback callbacks, in both normal and error
exits from subtransactions.  However this isn't very safe, as shown in
recent trouble report from Frank van Vugt, in which releasing a tupledesc
refcount failed.  It's also unnecessary, since the resources that callbacks
might wish to release should be cleaned up by other error recovery mechanisms
(ie the resource owners).  We only really want FreeExprContext to release
memory attached to the exprcontext in the error-exit case.  So, add a bool
parameter to FreeExprContext to tell it not to call the callbacks.

A more general solution would be to pass the isCommit bool parameter on to
the callbacks, so they could do only safe things during error exit.  But
that would make the patch significantly more invasive and possibly break
third-party code that registers ExprContextCallback callbacks.  We might want
to do that later in HEAD, but for now I'll just do what seems reasonable to
back-patch.
2009-07-18 19:15:50 +00:00
config Fix the makefiles to fail cleanly if Perl is needed but not present. This 2009-06-23 03:46:00 +00:00
contrib Fix xslt_process() to ensure that it inserts a NULL terminator after the 2009-07-10 00:32:06 +00:00
doc Add missing HOUR TO SECOND option to list of possible INTERVAL field sets, 2009-07-08 17:22:01 +00:00
src Fix error cleanup failure caused by 8.4 changes in plpgsql to try to avoid 2009-07-18 19:15:50 +00:00
aclocal.m4 Add new auto-detection of thread flags. 2004-04-23 18:15:55 +00:00
configure Bundle v8.4.0 2009-06-27 00:14:47 +00:00
configure.in Bundle v8.4.0 2009-06-27 00:14:47 +00:00
COPYRIGHT Update copyright for 2009. 2009-01-01 17:24:05 +00:00
GNUmakefile.in Modify distdir rule to skip .git directory. 2009-01-15 01:53:49 +00:00
Makefile Remove remains of old depend target. 2007-01-20 17:16:17 +00:00
README Point to our download URL, rather than listing interface in the README 2008-05-06 22:02:12 +00:00
README.CVS Fix the makefiles to fail cleanly if Perl is needed but not present. This 2009-06-23 03:46:00 +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.

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/.