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Posted to issues@hive.apache.org by "Deepak Jaiswal (JIRA)" <ji...@apache.org> on 2017/12/16 06:31:00 UTC
[jira] [Updated] (HIVE-18218) SMB Join : Handle buckets with no
splits.
[ https://issues.apache.org/jira/browse/HIVE-18218?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Deepak Jaiswal updated HIVE-18218:
----------------------------------
Description:
While working on HIVE-18208, it was found that with SMB, the results are incorrect. This most likely is a product issue.
auto_sortmerge_join_16 fails with wrong results due to this.
cc [~hagleitn]
The current logic in CustomPartitionVertex assumes that there is a split for each bucket whereas in Tez, we can have no splits for empty buckets.
was:
While working on HIVE-18208, it was found that with SMB, the results are incorrect. This most likely is a product issue.
cc [~hagleitn]
Summary: SMB Join : Handle buckets with no splits. (was: SMB Join : auto_sortmerge_join_16 fails with wrong results)
> SMB Join : Handle buckets with no splits.
> -----------------------------------------
>
> Key: HIVE-18218
> URL: https://issues.apache.org/jira/browse/HIVE-18218
> Project: Hive
> Issue Type: Bug
> Reporter: Deepak Jaiswal
> Assignee: Deepak Jaiswal
>
> While working on HIVE-18208, it was found that with SMB, the results are incorrect. This most likely is a product issue.
> auto_sortmerge_join_16 fails with wrong results due to this.
> cc [~hagleitn]
> The current logic in CustomPartitionVertex assumes that there is a split for each bucket whereas in Tez, we can have no splits for empty buckets.
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