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postgresql8.4-docs-8.4.12-0.1mdv2010.2.i586.rpm

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>What is <SPAN
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>?</A
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>   <SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
> is an object-relational
   database management system (<ACRONYM
CLASS="ACRONYM"
>ORDBMS</ACRONYM
>) based on
   <A
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>   <SPAN
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>POSTGRES, Version 4.2</SPAN
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>,
   developed at the University of California at Berkeley Computer Science
   Department.  POSTGRES pioneered many concepts that only became
   available in some commercial database systems much later.
  </P
><P
>   <SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
> is an open-source descendant
   of this original Berkeley code.  It supports a large part of the SQL
   standard and offers many modern features:

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>complex queries</SPAN
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>foreign keys</SPAN
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>triggers</SPAN
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>views</SPAN
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>transactional integrity</SPAN
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>multiversion concurrency control</SPAN
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   Also, <SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
> can be extended by the
   user in many ways, for example by adding new

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>data types</SPAN
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>functions</SPAN
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>operators</SPAN
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>aggregate functions</SPAN
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>index methods</SPAN
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>procedural languages</SPAN
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><P>
  </P
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>   And because of the liberal license,
   <SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
> can be used, modified, and
   distributed by anyone free of charge for any purpose, be it
   private, commercial, or academic.
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