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From Markus Wiederkehr <>
Subject Re: managing docids for ParallelReader (was Augmenting an existing index)
Date Fri, 03 Jun 2005 09:29:19 GMT
On 5/31/05, Doug Cutting <> wrote:
> > I have wondered about this as well. Are there any *sure fire* ways of
> > creating (and updating) two indices so that doc numbers in one index
> > deliberately correspond to doc numbers in the other index?
> If you add the documents in the same order to both indexes and perform
> the same deletions on both indexes then they'll have the same numbers.

Would it be possible to write an IndexReader that combines two indexes
by a common field, for example a document ID? And how performant would
such an implementation be?


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