Overhaul the "External Projects" chapter in the manual. Replace

the variabelist with a more concise table, add a URL for each project,
remove some orphaned projects, add PL/Py, and various other changes.
Initial patch from Robert Treat, subsequent work by Neil Conway.
This commit is contained in:
Neil Conway 2006-11-20 17:42:16 +00:00
parent 900c9962f7
commit e2b1dbd394
2 changed files with 227 additions and 125 deletions

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@ -1,139 +1,243 @@
<!-- $PostgreSQL: pgsql/doc/src/sgml/external-projects.sgml,v 1.13 2006/09/16 00:30:13 momjian Exp $ -->
<!-- $PostgreSQL: pgsql/doc/src/sgml/external-projects.sgml,v 1.14 2006/11/20 17:42:16 neilc Exp $ -->
<appendix id="external-projects">
<title>PgFoundry and External Projects</title>
<title>External Projects</title>
<para>
<productname>PostgreSQL</productname> is a complex software project,
and managing the project is difficult. We have found that many
enhancements to <productname>PostgreSQL</productname> can be more
efficiently developed separately from the core project.
</para>
<para>
To help our community with the development of their external projects,
we have created the <ulink url="http://www.pgfoundry.org/">PgFoundry</ulink>.
<ulink url="http://www.pgfoundry.org/">PgFoundry</ulink> is built using the
GForge software project and is similar to SourceForge in its feature set. If
you have a PostgreSQL related Open Source project that you would like to
develop and need project management resources such as mailing lists, forums,
bug tracking, and CVS, please feel free to create a new project.
efficiently developed separately from the core project.
</para>
<para>
Secondly, many <productname>PostgreSQL</productname>-related projects are
still hosted at <ulink url="http://gborg.postgresql.org/"><productname>GBorg</></ulink>.
GBorg is the original external community developer site, and while it is
currently closed to new projects in favor of PgFoundry, it still contains
many active and relevant projects. There are other popular <productname>PostgreSQL</productname>
related projects that are hosted independently as well at other community
sites such as <ulink url="http://www.sf.net/">SourceForge</ulink>. You should
search the web if you don't find the project you are looking for.
To help our community with the development of their external projects, we
have created <ulink url="http://www.pgfoundry.org/">PgFoundry</ulink>, a
website that provides hosting for <productname>PostgreSQL</>-related
projects that are maintained outside the core <productname>PostgreSQL</>
distribution. PgFoundry is built using the GForge software project and is
similar to <ulink url="http://sourceforge.net">SourceForge.net</> in its
feature set, providing mailing lists, forums, bug tracking, CVS, and web
hosting. If you have a <productname>PostgreSQL</>-related open source
project that you would like to have hosted at PgFoundy, please feel free
to create a new project.
</para>
<note>
<para>
Many <productname>PostgreSQL</productname>-related projects are still
hosted at <ulink url="http://gborg.postgresql.org/">GBorg</>. GBorg is
the original external community developer site, and while it is
currently closed to new projects in favor of PgFoundry, it still
contains many active and relevant projects. Other popular
<productname>PostgreSQL</productname>-related projects are hosted
independently, or on other project-hosting sites such such as <ulink
url="http://sourceforge.net/">SourceForge.net</ulink>. You should search
the web if you don't find the project you are looking for.
</para>
</note>
<sect1 id="external-interfaces">
<title>Externally Developed Interfaces</title>
<title>Client Interfaces</title>
<indexterm>
<primary>interfaces</primary>
<secondary>externally maintained</secondary>
</indexterm>
<para>
<productname>PostgreSQL</productname> includes very few interfaces
with the base distribution. <application>libpq</> is packaged because
it is the primary <application>C</> interface and many other interfaces
are build on top of it. <application>ecpg</> is also packaged because it is
tied to the server-side grammar so is very dependent on the database
version. All the other interfaces, such as ODBC, Java, Perl, Python, and
others, are external projects and must be installed separately.
There are only two client interfaces included in the base
<productname>PostgreSQL</productname> distribution:
<itemizedlist>
<listitem>
<para>
<link linkend="libpq">libpq</link> is included because it is the
primary C language interface, and because many other client interfaces
are built on top of it.
</para>
</listitem>
<listitem>
<para>
<link linkend="ecpg">ecpg</link> is included because it depends on the
server-side SQL grammar, and is therefore sensitive to changes in
<productname>PostgreSQL</productname> itself.
</para>
</listitem>
</itemizedlist>
All other language interfaces are external projects and are distributed
separately. <xref linkend="language-interface-table"> includes a list of
some of these projects. Note that some of these packages may not be
released under the same license as <productname>PostgreSQL</>. For more
information on each language interface, including licensing terms, refer to
its website and documentation.
</para>
<table id="language-interface-table">
<title>Externally Maintained Client Interfaces</>
<tgroup cols="4">
<thead>
<row>
<entry>Name</entry>
<entry>Language</entry>
<entry>Comments</entry>
<entry>Website</entry>
</row>
</thead>
<tbody>
<row>
<entry>DBD::Pg</entry>
<entry>Perl</entry>
<entry>Perl DBI driver</entry>
<entry><ulink url="http://search.cpan.org/dist/DBD-Pg/">http://search.cpan.org/dist/DBD-Pg/</ulink></entry>
</row>
<row>
<entry>JDBC</entry>
<entry>JDBC</entry>
<entry>Type 4 JDBC driver</entry>
<entry><ulink url="http://jdbc.postgresql.org/">http://jdbc.postgresql.org/</ulink></entry>
</row>
<row>
<entry>libpqxx</entry>
<entry>C++</entry>
<entry>New-style C++ interface</entry>
<entry><ulink url="http://thaiopensource.org/development/libpqxx/">http://thaiopensource.org/development/libpqxx/</ulink></entry>
</row>
<row>
<entry>libpq++</entry>
<entry>C++</entry>
<entry>Old-style C++ interface</entry>
<entry><ulink url="http://gborg.postgresql.org/project/libpqpp/">http://gborg.postgresql.org/project/libpqpp/</ulink></entry>
</row>
<row>
<entry>Npgsql</entry>
<entry>.NET</entry>
<entry>.NET data provider</entry>
<entry><ulink url="http://pgfoundry.org/projects/npgsql/">http://pgfoundry.org/projects/npgsql/</ulink></entry>
</row>
<row>
<entry>ODBCng</entry>
<entry>ODBC</entry>
<entry>An alternative ODBC driver</entry>
<entry><ulink url="http://projects.commandprompt.com/public/odbcng/">http://projects.commandprompt.com/public/odbcng/</ulink></entry>
</row>
<row>
<entry>pgtclng</entry>
<entry>Tcl</entry>
<entry></entry>
<entry><ulink url="http://pgfoundry.org/projects/pgtclng/">http://pgfoundry.org/projects/pgtclng/</ulink></entry>
</row>
<row>
<entry>psqlODBC</entry>
<entry>ODBC</entry>
<entry>The most commonly-used ODBC driver</entry>
<entry><ulink url="http://odbc.postgresql.org/">http://odbc.postgresql.org/</ulink></entry>
</row>
<row>
<entry>psycopg</entry>
<entry>Python</entry>
<entry>DB API 2.0-compliant</entry>
<entry><ulink url="http://www.initd.org/">http://www.initd.org/</ulink></entry>
</row>
</tbody>
</tgroup>
</table>
</sect1>
<sect1 id="external-pl">
<title>Procedural Languages</title>
<indexterm>
<primary>procedural language</primary>
<secondary>externally maintained</secondary>
</indexterm>
<para>
<productname>PostgreSQL</productname> includes several procedural
languages with the base distribution: <link
linkend="plpgsql">PL/PgSQL</link>, <link linkend="pltcl">PL/Tcl</link>,
<link linkend="plperl">PL/Perl</link>, and <link
linkend="plpython">PL/Python</link>.
</para>
<para>
Some of the more popular interfaces are:
In addition, there are a number of procedural languages that are developed
and maintained outside the core <productname>PostgreSQL</productname>
distribution. <xref linkend="pl-language-table"> lists some of these
packages. Note that some of these projects may not be released under the same
license as <productname>PostgreSQL</>. For more information on each
procedural language, including licensing information, refer to its website
and documentation.
</para>
<variablelist>
<varlistentry>
<term>psqlODBC</term>
<listitem>
<para>
This is the most common interface for <application>Windows</>
applications. <ulink url="http://odbc.postgresql.org/">Website.</ulink>
</para>
</listitem>
</varlistentry>
<table id="pl-language-table">
<title>Externally Maintained Procedural Languages</title>
<varlistentry>
<term>ODBCng</term>
<listitem>
<para>
Another ODBC driver for PostgreSQL.
<ulink url="http://projects.commandprompt.com/public/odbcng/">Website.</ulink>
</para>
</listitem>
</varlistentry>
<tgroup cols="3">
<thead>
<row>
<entry>Name</entry>
<entry>Language</entry>
<entry>Website</entry>
</row>
</thead>
<varlistentry>
<term>PostgreSQL JDBC Driver</term>
<listitem>
<para>
A <application>JDBC</> interface.
<ulink url="http://jdbc.postgresql.org/">Website.</ulink>
</para>
</listitem>
</varlistentry>
<tbody>
<row>
<entry>PL/Java</entry>
<entry>Java</entry>
<entry><ulink url="http://pljava.projects.postgresql.org/">http://pljava.projects.postgresql.org/</ulink></entry>
</row>
<varlistentry>
<term>Npgsql</term>
<listitem>
<para>
<application>.Net</> data provider for <application>C#</> applications.
<ulink url="http://pgfoundry.org/projects/npgsql/">Website.</ulink>
</para>
</listitem>
</varlistentry>
<row>
<entry>PL/PHP</entry>
<entry>PHP</entry>
<entry><ulink url="http://www.commandprompt.com/community/plphp/">http://www.commandprompt.com/community/plphp/</ulink></entry>
</row>
<varlistentry>
<term>libpqxx</term>
<listitem>
<para>
A <application>C++</> interface.
<ulink url="http://thaiopensource.org/development/libpqxx/">Website.</ulink>
</para>
</listitem>
</varlistentry>
<row>
<entry>PL/Py</entry>
<entry>Python</entry>
<entry><ulink url="http://python.projects.postgresql.org/">http://python.projects.postgresql.org/</ulink></entry>
</row>
<varlistentry>
<term>DBD::Pg</term>
<listitem>
<para>
A <application>Perl</> DBI driver for PostgreSQL.
<ulink url="http://search.cpan.org/dist/DBD-Pg/">Website.</ulink>
</para>
</listitem>
</varlistentry>
<row>
<entry>PL/R</entry>
<entry>R</entry>
<entry><ulink url="http://www.joeconway.com/plr/">http://www.joeconway.com/plr/</ulink></entry>
</row>
<varlistentry>
<term>pgtclng</term>
<listitem>
<para>
A <application>Tcl</> interface.
<ulink url="http://gborg.postgresql.org/project/pgtclng/projdisplay.php">Website.</ulink>
</para>
</listitem>
</varlistentry>
<row>
<entry>PL/Ruby</entry>
<entry>Ruby</entry>
<entry><ulink url="http://raa.ruby-lang.org/project/pl-ruby/">http://raa.ruby-lang.org/project/pl-ruby/</ulink></entry>
</row>
<varlistentry>
<term>pyscopg</term>
<listitem>
<para>
A <application>Python</> interface library that is DB API 2.0 compliant.
<ulink url="http://www.initd.org/">Website.</ulink>
</para>
</listitem>
</varlistentry>
</variablelist>
</para>
<row>
<entry>PL/Scheme</entry>
<entry>Scheme</entry>
<entry><ulink url="http://plscheme.projects.postgresql.org/">http://plscheme.projects.postgresql.org/</ulink></entry>
</row>
<row>
<entry>PL/sh</entry>
<entry>Unix shell</entry>
<entry><ulink url="http://plsh.projects.postgresql.org/">http://plsh.projects.postgresql.org/</ulink></entry>
</row>
</tbody>
</tgroup>
</table>
</sect1>
<sect1 id="external-extensions">
@ -144,18 +248,21 @@
</indexterm>
<para>
<productname>PostgreSQL</> was designed from the start to be
extensible. For this reason, extensions loaded into the database can
function just like features that are packaged with the database. The
<productname>PostgreSQL</> is designed to be easily extensible. For
this reason, extensions loaded into the database can function just
like features that are packaged with the database. The
<filename>contrib/</> directory shipped with the source code
contains a large number of extensions. The <filename>README</> file
in that directory contains a summary. They include conversion tools,
full-text indexing, <acronym>XML</> tools, and additional data types
and indexing methods. Other extensions are developed independently,
like <application>PostGIS</>. Even <application>PostgreSQL</>
replication solutions are developed externally. For example,
<application>Slony-I</> is a popular master/slave replication solution
that is developed independently from the core project.
in that directory contains a summary. They include conversion
tools, full-text indexing, <acronym>XML</> tools, and additional
data types and indexing methods. Other extensions are developed
independently, like <application><ulink
url="http://www.postgis.org/">PostGIS</ulink></>. Even
<productname>PostgreSQL</> replication solutions are developed
externally. For example, <application> <ulink
url="http://www.slony.info">Slony-I</ulink></> is a popular
master/slave replication solution that is developed independently
from the core project.
</para>
<para>
@ -163,7 +270,6 @@
<productname>PostgreSQL</>. The most popular is
<application><ulink url="http://www.pgadmin.org/">pgAdmin III</ulink></>,
and there are several commercially available ones as well.
</para>
</para>
</sect1>
</appendix>

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@ -1,4 +1,4 @@
<!-- $PostgreSQL: pgsql/doc/src/sgml/xplang.sgml,v 1.31 2006/09/16 00:30:16 momjian Exp $ -->
<!-- $PostgreSQL: pgsql/doc/src/sgml/xplang.sgml,v 1.32 2006/11/20 17:42:16 neilc Exp $ -->
<chapter id="xplang">
<title id="xplang-title">Procedural Languages</title>
@ -31,15 +31,11 @@
<application>PL/Tcl</application> (<xref linkend="pltcl">),
<application>PL/Perl</application> (<xref linkend="plperl">), and
<application>PL/Python</application> (<xref linkend="plpython">).
Other languages can be defined by users.
The basics of developing a new procedural language are covered in <xref
linkend="plhandler">.
</para>
<para>
There are additional procedural languages available that are not
included in the core distribution. <xref linkend="external-projects">
has information about finding them.
has information about finding them. In addition other languages can
be defined by users; the basics of developing a new procedural
language are covered in <xref linkend="plhandler">.
</para>
<sect1 id="xplang-install">