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calls. Outside a transaction, the backend detects them as buffer leaks; it sends a NOTICE, and frees them. This sometimes cause a segmentation fault (at least on Linux). These indexes are initialized on the first lo_read/lo_write/lo_tell call, and (normally) closed on a lo_close call. Thus the buffer leaks appear when lo direct access functions are used, and not with lo_import/lo_export functions (libpq version calls lo_close before ending the command, and the backend version uses another path). The included patches (against recent snapshot, and against 6.3.2) cause indexes to be closed on transaction end (that is on explicit 'END' statment, or on command termination outside trasaction blocks), thus preventing the buffer leaks while increasing performance inside transactions. Some (all?) 'classic' memory leaks are also removed. I hope it will be ok. --- Pascal ANDRE, graduated from Ecole Centrale Paris andre@via.ecp.fr |
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PostgreSQL Data Base Management System (formerly known as Postgres, then as Postgres95). This directory contains the version 6.3.2 release of the PostgreSQL database server. The server is not ANSI SQL compliant, but it gets closer with every release. After you unzip and untar the distribution file, look at file INSTALL for the installation notes and file HISTORY for the changes. The latest version of this software may be obtained at ftp://ftp.postgresql.org/pub/. For more information look at our WWW home page located at http://www.postgreSQL.org/. PostgreSQL is not public domain software. It is copyrighted by the University of California but may be used according to the licensing terms of the the copyright below: ------------------------------------------------------------------------ POSTGRES95 Data Base Management System (formerly known as Postgres, then as Postgres95). Copyright (c) 1994-7 Regents of the University of California Permission to use, copy, modify, and distribute this software and its documentation for any purpose, without fee, and without a written agreement is hereby granted, provided that the above copyright notice and this paragraph and the following two paragraphs appear in all copies. IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATIONS TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.