Extend geodist() to support MultiValuefield for sorting/scoring
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Key: SOLR-2345
URL: https://issues.apache.org/jira/browse/SOLR-2345
Project: Solr
Issue Type: New Feature
Reporter: Bill Bell
Extend geodist() and potentially other functions to support MultiValue fields
for sorting and scoring.
sort=geodist() asc
This should grab the closest point in the MultiValue list, and return the
distance so that is can be scored.
The problem is I cannot find a way to get the MultiValue list?
In function:
src/java/org/apache/solr/search/function/distance/HaversineConstFunction.java
VectorValueSource p2;
this.p2 = vs
List<ValueSource> sources = p2.getSources();
ValueSource latSource = sources.get(0);
ValueSource lonSource = sources.get(1);
DocValues latVals = latSource.getValues(context1, readerContext1);
DocValues lonVals = lonSource.getValues(context1, readerContext1);
double latRad = latVals.doubleVal(doc) * DistanceUtils.DEGREES_TO_RADIANS;
double lonRad = lonVals.doubleVal(doc) * DistanceUtils.DEGREES_TO_RADIANS;
etc...
It would be good if I could loop through sources.get() but it only returns 2
sources even when there are 2 pairs of lat/long.
sources:[double(store_0_coordinate), double(store_1_coordinate)]
How do I extend the sources?
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