2008-04-29 09:46 AEST by Arthur Barrett - Enhancement request to check that files conform to mime type, or in the case of 
XML files that they are well formed/obey schema definition (either xmlschema or 
dtd).

This could be implemented as a 'special' trigger which would also allow for 
checking files obey company/user specific rules.

This is NOT a request that a trigger/function be able to automatically MODIFY a 
file on checking (eg: code beautifiers).