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Posted to dev@lucene.apache.org by "Tom Hill (JIRA)" <ji...@apache.org> on 2015/12/15 21:21:46 UTC
[jira] [Updated] (SOLR-8420) Date statistics: sumOfSquares
overflows long
[ https://issues.apache.org/jira/browse/SOLR-8420?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Tom Hill updated SOLR-8420:
---------------------------
Attachment: 0001-Fix-overflow-in-date-statistics.patch
One line fix, plus tests.
> 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
>
>
> 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);
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