PL/XSLT Procedural Language Handler for PostgreSQL

PL/XSLT is a procedural language handler for PostgreSQL that allows you to write stored procedures in XSLT. A function definition looks like:

CREATE FUNCTION foo(xml) RETURNS xml AS $$
<?xml version="1.0"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
  ...
</xsl:stylesheet>
$$ LANGUAGE xslt;

Conditions on the function definition:

• The first parameter must be of type xml. It will receive the input document. Every function must have at least this one parameter.

• The following function parameters will be supplied to the stylesheet as XSL parameters.

• The return type must match the output method specified by the stylesheet. If it is xml, then the return type must be xml; if it is text or html, the return type must be text or varchar.

• Triggers are not supported.

Refer to the INSTALL file for installation instructions and COPYING for the license. The distribution also contains a test suite which contains a simplistic demonstration of the functionality.

I'm interested if anyone is using this.

Peter Eisentraut peter@eisentraut.org

Installation

Build:

make
make install

Set the environment variable PG_CONFIG to the location of the pg_config program belonging to the desired PostgreSQL installation, if it is not found automatically.

Load into database:

CREATE EXTENSION plxslt;

For versions before PostgreSQL 9.1:

psql -f plxslt.sql