Re: XML & Postgres Functions

hi,

zerobearing2 wrote:

> Hi all-
> 
> I'm migrating to postgres from the MS SQL Server land, as I can see
> a great potential with postgres, I was wondering if anyone has
> experimented or started a project with XML inside user defined
> functions?
> 
> I've seen the contrib/xml shipped with the distro, as I see it's
> usefulness, it's not quite what I had in mind (lacks the ablity to
> return recordset/table of nodes). Also, the project XpSQL seems
> interesting, but still not it.
> 
> I'm looking for a solution similar to the OpenXML that MS implements
> in their SQL Server. A way to parse XML into a table and/or a temp
> table for use inside a function. For example, I would like to
> serialize my objects into XML, send them to a postgres function for
> saving/updating the relational data inside postgres.
> 
> I envision something of the following could be useful:
> 
> XML
> ------
> <table>
>   <row field1="Testing" field2="Testing2" updateflag=1/>
>   ...
>   <row field1="TestingN" field2="TestingN+2" updateflag=1/>
> <table>
> 
> 
> UDF
> ------
> create function somefunc(xmldata text)
> begin
> xmldoc := preparedoc(xmldata);
> ....
> update tablename set
>   field1=x.field1,
>   field2=x.field2,
> from xmltable(xmldoc, '/table/row[@updateflag=1]') as x
> ....
> preform removedoc(xmldoc);
> end;

Check the xml dir under contrib.

Or/And
http://www.google.com/search?hl=en&lr=&ie=UTF-8&oe=utf-8&q=xml+in+postgres+site%3Apostgresql.org

C.