Tomás Fernández Löbbe created LUCENE-7673:
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Summary: Add MultiValued[Int/Long/Float/Double]FieldSource for
SortedNumericDocValues
Key: LUCENE-7673
URL: https://issues.apache.org/jira/browse/LUCENE-7673
Project: Lucene - Core
Issue Type: Improvement
Reporter: Tomás Fernández Löbbe
Assignee: Tomás Fernández Löbbe
Right now \[Int/Long/Float/Double\]FieldSource can give a {{ValueSource}} view
of a {{NumericDocValues}} field. This Jira is to add
MultiValued\[Int/Long/Float/Double\]FieldSource that given a
{{SortedNumericSelector.Type}} can give a {{ValueSource}} view of a
{{SortedNumericDocValues}} field
I considered instead of adding new classes an optional selector parameter to
the existing \[Int/Long/Float/Double\]FieldSource, but I think adding different
classes makes a cleaner API and it’s clear that for MultiValued* case, the
selector is a mandatory parameter.
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