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From Simon Willnauer <>
Subject Re: Join between indexes
Date Wed, 01 Feb 2012 16:09:39 GMT
maybe this link will help:


On Wed, Feb 1, 2012 at 3:05 PM, Arnon Mazza <> wrote:
> Assume we have a Lucene index over which several types of analyses are performed.
> Assume that the conclusions of some analysis require that new tokens be added to existing
documents in the index.
> For example, a repeating pattern p (sequence of words) that appears in a large part
of the documents should be tagged in every document in its exact position.
> Now it is required to execute proximity queries involving standard terms and also the
pattern p (e.g. find all documents in which the word "hello" is adjacent to the pattern p).
> Is there a way of achieving this without re-indexing all the documents where the pattern
p was found ?
> In other words, is it possible to maintain a separate index that would keep only patterns->docIds/positions,
and then join between the two indexes ?
> If not, is there a plan to support this in the future ?
> Thanks,
> Arnon.

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