How can I search for a new defined variable using DBCache?

I have written a small Perl Pluglin for Foswiki using a newly introduced meta variable like %META:VAR{ id=".." number=".." date=".."}%.

As the standard search might take too long I would like to use DBCache searching for topic containg the metavariable VAR with a certain id or number. Alas using DBQUERY I can just search for formfields or preferences.

What would be the perl code to make use of DBCacheContrib to just search this variable?

Or how could I use DBQuery to search for VAR?

Any help is very much apprecuaited.

-- ThomasSchmidt - 27 Jun 2013

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