ok, I've already created a jira about this problem: https://issues.apache.org/jira/browse/KYLIN-3091
2017-12-08 skyyws 发件人：ShaoFeng Shi <[email protected]> 发送时间：2017-12-08 17:52 主题：Re: Re: A problem about retention rate analyze 收件人："user"<[email protected]> 抄送： Should be a bug, could you please report a JIRA to track this? Thanks! 2017-12-08 9:08 GMT+08:00 skyyws <[email protected]>: ok, my kylin version is kylin 2.0.0-hbase 0.98.8. here is the error log: ----------------------------------------------------------------------------------------------------------------------- Caused by: java.lang.IndexOutOfBoundsException: Index: 2, Size: 2 at java.util.ArrayList.rangeCheck(ArrayList.java:635) at java.util.ArrayList.get(ArrayList.java:411) at org.apache.kylin.query.relnode.ColumnRowType.getColumnByIndex(ColumnRowType.java:49) at org.apache.kylin.query.relnode.OLAPAggregateRel.fillbackOptimizedColumn(OLAPAggregateRel.java:396) at org.apache.kylin.query.relnode.OLAPAggregateRel.buildRewriteFieldsAndMetricsColumns(OLAPAggregateRel.java:347) at org.apache.kylin.query.relnode.OLAPAggregateRel.implementRewrite(OLAPAggregateRel.java:283) at org.apache.kylin.query.relnode.OLAPRel$RewriteImplementor.visitChild(OLAPRel.java:158) at org.apache.kylin.query.relnode.OLAPLimitRel.implementRewrite(OLAPLimitRel.java:107) at org.apache.kylin.query.relnode.OLAPRel$RewriteImplementor.visitChild(OLAPRel.java:158) at org.apache.kylin.query.relnode.OLAPToEnumerableConverter.implement(OLAPToEnumerableConverter.java:100) at org.apache.calcite.adapter.enumerable.EnumerableRelImplementor.implementRoot(EnumerableRelImplementor.java:108) at org.apache.calcite.adapter.enumerable.EnumerableInterpretable.toBindable(EnumerableInterpretable.java:92) at org.apache.calcite.prepare.CalcitePrepareImpl$CalcitePreparingStmt.implement(CalcitePrepareImpl.java:1248) at org.apache.calcite.prepare.Prepare.prepareSql(Prepare.java:306) at org.apache.calcite.prepare.Prepare.prepareSql(Prepare.java:203) at org.apache.calcite.prepare.CalcitePrepareImpl.prepare2_(CalcitePrepareImpl.java:776) at org.apache.calcite.prepare.CalcitePrepareImpl.prepare_(CalcitePrepareImpl.java:632) at org.apache.calcite.prepare.CalcitePrepareImpl.prepareSql(CalcitePrepareImpl.java:602) at org.apache.calcite.jdbc.CalciteConnectionImpl.parseQuery(CalciteConnectionImpl.java:214) at org.apache.calcite.jdbc.CalciteMetaImpl.prepareAndExecute(CalciteMetaImpl.java:595) at org.apache.calcite.avatica.AvaticaConnection.prepareAndExecuteInternal(AvaticaConnection.java:615) at org.apache.calcite.avatica.AvaticaStatement.executeInternal(AvaticaStatement.java:148) ----------------------------------------------------------------------------------------------------------------------- 2017-12-08 skyyws 发件人：ShaoFeng Shi <[email protected]> 发送时间：2017-12-07 22:53 主题：Re: A problem about retention rate analyze 收件人："user"<[email protected]> 抄送： Hi Sky, What's the error you got when querying just one intersect_count? Besides, what's your Kylin version? 2017-12-07 16:22 GMT+08:00 skyyws <[email protected]>: Hi guys, I found that kylin supported retention rate analyze function, so I made some test for this function. The following SQL executed successful: ----------------------------------------------------------------------------------------------------------------------- select city, version, intersect_count(uuid, dt, array['20161014']) as first_day, intersect_count(uuid, dt, array['20161015']) as second_day, intersect_count(uuid, dt, array['20161016']) as third_day, intersect_count(uuid, dt, array['20161014', '20161015']) as retention_oneday, intersect_count(uuid, dt, array['20161014', '20161015', '20161016']) as retention_twoday from visit_log where dt in ('2016104', '20161015', '20161016') group by city, version ----------------------------------------------------------------------------------------------------------------------- but, other SQLs executed failed like this: ----------------------------------------------------------------------------------------------------------------------- select city, version, intersect_count(uuid, dt, array['20161014', '20161015']) as retention_oneday from visit_log where dt in ('2016104', '20161015',) group by city, version ----------------------------------------------------------------------------------------------------------------------- select city, version,intersect_count(uuid, dt, array['20161014', '20161015', '20161016']) as retention_twoday from visit_log where dt in ('2016104', '20161015', '20161016') group by city, version ----------------------------------------------------------------------------------------------------------------------- which means I cannot use just one intersect_count UDAF in a SQL, at lease two intersect_count, is this a bug or designed to do so? 2017-12-07 skyyws -- Best regards, Shaofeng Shi 史少锋 -- Best regards, Shaofeng Shi 史少锋
