[ https://issues.apache.org/jira/browse/HIVE-11761?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Aihua Xu updated HIVE-11761: ---------------------------- Description: HIVE-11502 fixed the hashcode for LazyDouble. Additionally we should fix for DoubleWritable as well due to HADOOP-12217 issue. In some cases such as {{select avg(t) from (select * from over1k cross join src) t group by d;}} where d is double type, the data is actually in DoubleWritable, not LazyDouble. Thus, before HADOOP-12217 gets fixed, we need to fix hashcode for LazyDouble as well as DoubleWritable. (was: HIVE-11502 fixed the hashcode for LazyDouble. Additionally we should fix for DoubleWritable as well due to HADOOP-12217 issue. In some cases such as {{select avg(t) from (select * from over1k cross join src) t group by d;}} where d is double type, the data is actually in DoubleWritable, not LazyDouble. Thus, we need to fix hashcode for LazyDouble as well as DoubleWritable.) > DoubleWritable hashcode for GroupBy is not properly generated > ------------------------------------------------------------- > > Key: HIVE-11761 > URL: https://issues.apache.org/jira/browse/HIVE-11761 > Project: Hive > Issue Type: Bug > Components: Hive > Affects Versions: 1.2.0, 2.0.0 > Reporter: Aihua Xu > Assignee: Aihua Xu > Attachments: HIVE-11761.patch > > > HIVE-11502 fixed the hashcode for LazyDouble. Additionally we should fix for > DoubleWritable as well due to HADOOP-12217 issue. In some cases such as > {{select avg(t) from (select * from over1k cross join src) t group by d;}} > where d is double type, the data is actually in DoubleWritable, not > LazyDouble. Thus, before HADOOP-12217 gets fixed, we need to fix hashcode for > LazyDouble as well as DoubleWritable. -- This message was sent by Atlassian JIRA (v6.3.4#6332)