Querying for documents that have a field

[Erik Hatcher]

Is it possible to get a collection of documents based on whether they have a particular field (regardless of value)? I'm indexing HTML documents, and want to pull out some information that may or may not be present in the documents (and adding a field if that information exists but not otherwise), but later I want to retrieve a list of all documents that have that field.

If its possible would you mind sharing how? If not, are folks employing some kind of other tricks to accomplish something like this?

Thanks,
Erik


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