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When more than one setting entries of same parameter exist in the configuration file, PostgreSQL uses only entry appearing last in configuration file scan. Since the other entries are not used, ParseConfigFp() doesn't need to process them, but previously it did that. This problematic behavior caused the configuration file scan to detect invalid settings of unused entries (e.g., existence of multiple entries of PGC_POSTMASTER parameter) and log the messages complaining about them. This commit changes the configuration file scan so that it processes only last entry of each parameter. Note that when multiple entries of same parameter exist both in postgresql.conf and postgresql.auto.conf, unused entries in postgresql.conf are still processed only at postmaster startup. The problem has existed since old version, but a user is more likely to encounter it since 9.4 where ALTER SYSTEM command was introduced. So back-patch to 9.4. Amit Kapila, slightly modified by me. Per report from Christoph Berg. |
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| config | ||
| contrib | ||
| doc | ||
| src | ||
| .dir-locals.el | ||
| .gitattributes | ||
| .gitignore | ||
| aclocal.m4 | ||
| configure | ||
| configure.in | ||
| COPYRIGHT | ||
| GNUmakefile.in | ||
| HISTORY | ||
| Makefile | ||
| README | ||
| README.git | ||
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. 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/.