intro-pg.sgml
上传用户:blenddy
上传日期:2007-01-07
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- <chapter id="intro-pg">
- <title>Introduction</title>
- <para>
- This document is the programmer's manual for the
- <ulink url="http://postgresql.org/"><productname>PostgreSQL</productname></ulink>
- database management system, originally developed at the University
- of California at Berkeley.
- <productname>PostgreSQL</productname> is based on
- <ulink url="http://s2k-ftp.CS.Berkeley.EDU:8000/postgres/postgres.html">
- <productname>Postgres release 4.2</productname></ulink>.
- The <productname>Postgres</productname> project,
- led by Professor Michael Stonebraker, has been sponsored by the
- Defense Advanced Research Projects Agency (<acronym>DARPA</acronym>), the
- Army Research Office (<acronym>ARO</acronym>), the National Science
- Foundation (<acronym>NSF</acronym>), and ESL, Inc.
- </para>
- <para>
- The first part of this manual
- explains the <productname>Postgres</productname>
- approach to extensibility and describe how
- users can extend <productname>Postgres</productname>
- by adding user-defined types,
- operators, aggregates, and both query language and programming
- language functions.
- After a discussion of the <productname>Postgres</productname>
- rule system, we discuss
- the trigger and SPI interfaces.
- The manual concludes with a detailed description of
- the programming interfaces and
- support libraries for various languages.
- </para>
- <para>
- We assume proficiency with UNIX and C programming.
- </para>
- &info;
- ¬ation;
- &y2k;
- &legal;
- </chapter>
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