Karsten F. wrote:
Hi Bill,
you should not use prefix-query (XXXX*), because in first step lucene would
generate a list of all terms in this field, and than search for all this
terms. Which is senceless.
That's not quite an accurate description of what it does as it nowhere
near as slow as doing a query for each term one by one, but yes, it's
inefficient. You can use a PrefixFilter to do much the same thing in a
somewhat quicker fashion, although it still takes a little more time
than having a new field.
This may help if adding a new field is impractical (e.g. if you have to
support older text indexes.)
Daniel
--
Daniel Noll
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