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https://issues.apache.org/jira/browse/LUCENE-3133?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13038286#comment-13038286
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Michael McCandless commented on LUCENE-3133:
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Oh I see. Hmm, is case 1 is going to cause problems? (Ie if both parent &
child docs can come back matching a given field). Is there a "normal" use case
where you would want to put same field name on both parent & child docs? (I
had thought normally the field names would be orthogonal).
Case 2) I agree needs some special syntax. In fact, even non-nested docs might
want such a query? Eg if my docs are cars, and each car has a multi-valued
field listing its features ("A/C", "Automatic transmission", ...), and I want
to find all cars that have both A/C and Automatic transmission. Boolean AND
query won't work correctly for this; I'd need this same extension as your
bullet 2 I think?
> Fix QueryParser to handle nested fields
> ---------------------------------------
>
> Key: LUCENE-3133
> URL: https://issues.apache.org/jira/browse/LUCENE-3133
> Project: Lucene - Java
> Issue Type: Improvement
> Reporter: Michael McCandless
> Fix For: 3.2, 4.0
>
>
> Once we commit LUCENE-2454, we need to make it easy for apps to enable this
> with QueryParser.
> It seems like it's a "schema" like behavior, ie we need to be able to express
> the join structure of the related fields.
> And then whenever QP produces a query that spans fields requiring a join, the
> NestedDocumentQuery is used to wrap the child fields?
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