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https://issues.apache.org/jira/browse/HIVE-14951?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Zoltan Haindrich updated HIVE-14951:
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Attachment: HIVE-14951.1.patch
#1) the problem is that the groupby operator is trying to supply data for tag
1...which is undefined...after further examination I ended up deciding to set
the tag to 0 in the reducer if it doesn't need tagging - seems like groupBys
doesn't need it...I'm not sure if this boolean was in use earlier...but its
purpose seem to be related :)
All these tagging related things seem to be odd here and there....most of the
usage of tag 0 is hard wired into some places...
> ArrayIndexOutOfBoundsException in GroupByOperator
> -------------------------------------------------
>
> Key: HIVE-14951
> URL: https://issues.apache.org/jira/browse/HIVE-14951
> Project: Hive
> Issue Type: Bug
> Reporter: Zhiyuan Yang
> Assignee: Zoltan Haindrich
> Attachments: HIVE-14951.1.patch
>
>
> Engine:
> Tez
> Query:
> select * from (select distinct a from f16) as f16, (select distinct a from
> f1) as fprime where f16.a = fprime.a;
> Table:
> create table f1 (a int, b string);
> create table f16 (a int, b string);
> Config:
> set hive.auto.convert.sortmerge.join=true;
> set hive.auto.convert.join=false;
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