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Dmitry Drozdov commented on SOLR-2472: -------------------------------------- The use-case is to get multi-level statistics with a single query. We use Solr to store a lot of something like event log data. It is probably not what Solr was designed for, but it is doing very well :) We need to get some reports for this data and StatsComponent does exactly what we need except the multi-level statistics. > StatsComponent should support hierarchical facets > ------------------------------------------------- > > Key: SOLR-2472 > URL: https://issues.apache.org/jira/browse/SOLR-2472 > Project: Solr > Issue Type: New Feature > Affects Versions: 3.1, 4.0 > Reporter: Dmitry Drozdov > Attachments: SOLR-2472.patch > > Original Estimate: 24h > Remaining Estimate: 24h > > It is currently possible to get only single layer of faceting in > StatsComponent. > The proposal is it make it possible to specify stats.facet parameter like > this: > &stats=true&stats.field=sField&stats.facet=fField1,fField2 > and get the response like this: > <lst name="stats"> > <lst name="stats_fields"> > <lst name="sField"> > <double name="min">1.0</double> > <double name="max">1.0</double> > <double name="sum">4.0</double> > <long name="count">4</long> > <long name="missing">0</long> > <double name="sumOfSquares">xxxxxxxx</double> > <double name="mean">xxxxxxxx</double> > <double name="stddev">xxxxxxxx</double> > <lst name="facets"> > <lst name="fField1"> > <lst name="fField1Value1"> > <double name="min">1.0</double> > <double name="max">1.0</double> > <double name="sum">2.0</double> > <long name="count">2</long> > <long name="missing">0</long> > <double name="sumOfSquares">xxxxxxxx</double> > <double name="mean">xxxxxxxx</double> > <double name="stddev">xxxxxxxx</double> > <lst name="facets"> > <lst name="fField2"> > <lst name="fField2Value1"> > <double name="min">1.0</double> > <double name="max">1.0</double> > <double name="sum">1.0</double> > <long name="count">1</long> > <long name="missing">0</long> > <double name="sumOfSquares">xxxxxxxx</double> > <double name="mean">xxxxxxxx</double> > <double name="stddev">xxxxxxxx</double> > </lst> > <lst name="fField2Value2"> > <double name="min">1.0</double> > <double name="max">1.0</double> > <double name="sum">1.0</double> > <long name="count">1</long> > <long name="missing">0</long> > <double name="sumOfSquares">xxxxxxxx</double> > <double name="mean">xxxxxxxx</double> > <double name="stddev">xxxxxxxx</double> > </lst> > </lst> > </lst> > </lst> > <lst name="fField1Value2"> > <double name="min">1.0</double> > <double name="max">1.0</double> > <double name="sum">2.0</double> > <long name="count">2</long> > <long name="missing">0</long> > <double name="sumOfSquares">xxxxxxxx</double> > <double name="mean">xxxxxxxx</double> > <double name="stddev">xxxxxxxx</double> > <lst name="facets"> > <lst name="fField2"> > <lst name="fField2Value1"> > <double name="min">1.0</double> > <double name="max">1.0</double> > <double name="sum">1.0</double> > <long name="count">1</long> > <long name="missing">0</long> > <double name="sumOfSquares">xxxxxxxx</double> > <double name="mean">xxxxxxxx</double> > <double name="stddev">xxxxxxxx</double> > </lst> > <lst name="fField2Value2"> > <double name="min">1.0</double> > <double name="max">1.0</double> > <double name="sum">1.0</double> > <long name="count">1</long> > <long name="missing">0</long> > <double name="sumOfSquares">xxxxxxxx</double> > <double name="mean">xxxxxxxx</double> > <double name="stddev">xxxxxxxx</double> > </lst> > </lst> > </lst> > </lst> > </lst> > </lst> > </lst> > </lst> > </lst> -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org