1) Can we have queries with wildcards in nutch ? (Ex: can I query for assign* for getting hits on assignments and assignment)
Not at present. Such searches are a performance liability. That said, it would not be technically hard to add support for them.
2) How do I query specific fields of a document ? While indexing, I am feeding in external data like "creation date" of the document. If I want to query documents based on this field, how do I do that ? There seems a way in nutch to do this as in checking for results from a specific site by specifying "site:".
You need to add fields to the document with an IndexingFilter plugin, and then provide a QueryFilter plugin to search them.
Doug
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