PostgreSQL 8.3 data types: xml vs varchar

Posted by Sejanus on Stack Overflow See other posts from Stack Overflow or by Sejanus
Published on 2010-01-25T07:42:01Z Indexed on 2010/04/16 17:43 UTC
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Filed under:

Xml

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postgresql

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best-practices

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database-modeling

There's xml data type in Postgres, I never used it before so I'd like to hear opinions. Downsides and upsides vs using regular varchar (or Text) column to store xml.

The text I'm going to store is xml, well-formed, UTF-8. No need to search by it (I've read searching by xml is slow).

This XML actually is data prepared for PDF generation with Apache FOP. XML can be generated dynamically from data found elsewhere (other Postgres tables), it's stored as is only so that I won't need to generate it twice. Kinda backup#2 for already generated PDF documents.

Anything else to know? Good practices, performance, maintenance, etc?

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