[jira] [Assigned] (SPARK-17997) Aggregation function for counting distinct values for multiple intervals
[ https://issues.apache.org/jira/browse/SPARK-17997?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Apache Spark reassigned SPARK-17997: Assignee: (was: Apache Spark) > Aggregation function for counting distinct values for multiple intervals > > > Key: SPARK-17997 > URL: https://issues.apache.org/jira/browse/SPARK-17997 > Project: Spark > Issue Type: New Feature > Components: SQL >Affects Versions: 2.1.0 >Reporter: Zhenhua Wang > > This is for computing ndv's for bins in equi-height histograms. A bin > consists of two endpoints which form an interval of values and the ndv in > that interval. For computing histogram statistics, after getting the > endpoints, we need an agg function to count distinct values in each interval. -- This message was sent by Atlassian JIRA (v6.3.4#6332) - To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org
[jira] [Assigned] (SPARK-17997) Aggregation function for counting distinct values for multiple intervals
[ https://issues.apache.org/jira/browse/SPARK-17997?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Apache Spark reassigned SPARK-17997: Assignee: Apache Spark > Aggregation function for counting distinct values for multiple intervals > > > Key: SPARK-17997 > URL: https://issues.apache.org/jira/browse/SPARK-17997 > Project: Spark > Issue Type: New Feature > Components: SQL >Affects Versions: 2.1.0 >Reporter: Zhenhua Wang >Assignee: Apache Spark > > This is for computing ndv's for bins in equi-height histograms. A bin > consists of two endpoints which form an interval of values and the ndv in > that interval. For computing histogram statistics, after getting the > endpoints, we need an agg function to count distinct values in each interval. -- This message was sent by Atlassian JIRA (v6.3.4#6332) - To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org
