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From Benjamin Pasero <>
Subject Creating a Query that matches Documents without a specific Field set?
Date Tue, 09 Feb 2010 17:04:35 GMT

is there any way I can search for Documents that have a specific Field not set?

The use case is obvious: Consider you introduce a new field to your
documents but dont want to migrate all other documents,
how would you be able to write a Query that covers both old and new documents?

I was hoping that a simple TermQuery where the term value was set to
be an empty String would help me out but I was prooven

Thanks for helping,

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