David Smiley created LUCENE-4869:
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Summary: Fix the Within spatial predicate PrefixTree to remove
false-positives
Key: LUCENE-4869
URL: https://issues.apache.org/jira/browse/LUCENE-4869
Project: Lucene - Core
Issue Type: Improvement
Components: modules/spatial
Reporter: David Smiley
LUCENE-4644 adds a useful initial capability to implement the "Within"
predicate for a RecursivePrefixTree based field. But it will match
false-positives for indexed shapes comprised of multiple disjoint parts. The
solution to be worked out here is to index a point per disjoint part in such a
way that it can be easily retrieved (e.g. DocValues) and then a post-process to
WithinPrefixTreeFilter would remove false-positives.
I didn't call this a 'bug' because this addresses a known temporary limitation,
and Within is still useful despite this.
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