Documentazione di PostgreSQL 9.0 > Appendici > Additional Supplied Modules
PrecedentePostgres95 Release 0.01auto_explainSuccessivo

F. Additional Supplied Modules

This appendix contains information regarding the modules that can be found in the contrib directory of the PostgreSQL™ distribution. These include porting tools, analysis utilities, and plug-in features that are not part of the core PostgreSQL system, mainly because they address a limited audience or are too experimental to be part of the main source tree. This does not preclude their usefulness.

When building from the source distribution, these modules are not built automatically, unless you build the "world" target (see Passo 2). You can build and install all of them by running:

gmake install

in the contrib directory of a configured source tree; or to build and install just one selected module, do the same in that module's subdirectory. Many of the modules have regression tests, which can be executed by running:

gmake installcheck

once you have a PostgreSQL™ server running. (Note that gmake check is not supported; you must have an operational database server to perform these tests, and you must have built and installed the module(s) to be tested.)

If you are using a pre-packaged version of PostgreSQL™, these modules are typically made available as a separate subpackage, such as postgresql-contrib.

Many modules supply new user-defined functions, operators, or types. To make use of one of these modules, after you have installed the code you need to register the new objects in the database system by running the SQL commands in the .sql file supplied by the module. For example,

psql -d dbname -f SHAREDIR/contrib/module.sql

Here, SHAREDIR means the installation's «share» directory (pg_config --sharedir will tell you what this is). In most cases the script must be run by a database superuser.

You need to run the .sql file in each database that you want the module's facilities to be available in. Alternatively, run it in database template1 so that the module will be copied into subsequently-created databases by default.

You can modify the first command in the .sql file to determine which schema within the database the module's objects will be created in. By default, they will be placed in public.

After a major-version upgrade of PostgreSQL™, run the installation script again, even though the module's objects might have been brought forward from the old installation by dump and restore. This ensures that any new functions will be available and any needed corrections will be applied.

F.1. adminpack

adminpack provides a number of support functions which pgAdmin and other administration and management tools can use to provide additional functionality, such as remote management of server log files.

F.1.1. Functions implemented

The functions implemented by adminpack can only be run by a superuser. Here's a list of these functions:

int8 pg_catalog.pg_file_write(fname text, data text, append bool)
bool pg_catalog.pg_file_rename(oldname text, newname text, archivename text)
bool pg_catalog.pg_file_rename(oldname text, newname text)
bool pg_catalog.pg_file_unlink(fname text)
setof record pg_catalog.pg_logdir_ls()

/* Renaming of existing backend functions for pgAdmin compatibility */
int8 pg_catalog.pg_file_read(fname text, data text, append bool)
bigint pg_catalog.pg_file_length(text)
int4 pg_catalog.pg_logfile_rotate()

Documentazione di PostgreSQL 9.0 > Appendici > Additional Supplied Modules
PrecedentePostgres95 Release 0.01auto_explainSuccessivo