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Tom Hill commented on SOLR-8420: -------------------------------- Certainly could be changed. Looks like it currently would overflow if you are looking at more than 6 million+ dates, which is a pretty small number today. Downside is small loss of precision for smaller datasets. I think it probably should be changed. I'll update the patch. > Date statistics: sumOfSquares overflows long > -------------------------------------------- > > Key: SOLR-8420 > URL: https://issues.apache.org/jira/browse/SOLR-8420 > Project: Solr > Issue Type: Bug > Components: SearchComponents - other > Affects Versions: 5.4 > Reporter: Tom Hill > Priority: Minor > Attachments: 0001-Fix-overflow-in-date-statistics.patch, > 0001-Fix-overflow-in-date-statistics.patch, StdDev.java > > > The values for Dates are large enough that squaring them overflows a "long" > field. This should be converted to a double. > StatsValuesFactory.java, line 755 DateStatsValues#updateTypeSpecificStats Add > a cast to double > sumOfSquares += ( (double)value * value * count); -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org