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https://issues.apache.org/jira/browse/LUCENE-8482?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16607123#comment-16607123
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Ignacio Vera commented on LUCENE-8482:
--------------------------------------
I think I am doing already that, iterating through all values and choosing the
one with smaller distance. I have rewriten the method for clarity:
{code:java}
private long selectValue(SortedNumericDocValues multiDocValues) throws
IOException {
int count = multiDocValues.docValueCount();
long value = multiDocValues.nextValue();
if (count == 1) {
return value;
}
// compute exact sort key: avoid any asin() computations
double distance = getDistanceKeyFromEncoded(value);
for (int i = 1; i < count; ++i) {
long nextValue = multiDocValues.nextValue();
double nextDistance = getDistanceKeyFromEncoded(nextValue);
if (nextDistance < distance) {
distance = nextDistance;
value = nextValue;
}
}
return value;
}{code}
I will play with making the IntersectVisitor less restrictive to see how much
it helps.
> Boosting by geo distance
> ------------------------
>
> Key: LUCENE-8482
> URL: https://issues.apache.org/jira/browse/LUCENE-8482
> Project: Lucene - Core
> Issue Type: New Feature
> Reporter: Adrien Grand
> Priority: Minor
> Attachments: LUCENE-8482.patch
>
>
> Similarly to LUCENE-8340 it would be nice to have an easy and efficient way
> to fold geo distance into scoring formulas in order to boost by proximity.
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