Andy Chillrud created SOLR-9687:
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Summary: Values not assigned to all valid Interval Facet intervals
in some cases
Key: SOLR-9687
URL: https://issues.apache.org/jira/browse/SOLR-9687
Project: Solr
Issue Type: Bug
Security Level: Public (Default Security Level. Issues are Public)
Components: faceting
Affects Versions: 5.3.1
Reporter: Andy Chillrud
Using the interval facet definitions:
* \{!key=Negative}(*,0)
* \{!key=Zero}\[0,0]
* \{!key=Positive}(0,*]
A document with the value "0" in the numeric field the intervals are being
applied to is not counted in the Zero interval. If I change the order of the
definitions to Positive, Zero, Negative, the "0" value is correctly counted in
the Zero interval.
Tracing into the 5.3.1 code the problem is in the
org.apache.solr.request.IntervalFacets class. When the getSortedIntervals()
method sorts the interval definitions for a field by their starting value is
doesn't take into account the startOpen property. When two intervals have equal
start values it needs to sort intervals where startOpen == false before
intervals where startOpen == true.
In the accumIntervalWithValue() method it checks which intervals each document
value should be considered a match for. It iterates through the sorted
intervals and stops checking subsequent intervals when LOWER_THAN_START result
is returned. If the Positive interval is sorted before the Zero interval it
never checks a zero value against the Zero interval.
I compared the 5.3.1 version of the IntervalFacets class against the 6.2.1
code, and it looks like the same issue will occur in 6.2.1.
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