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Posted to dev@hive.apache.org by "Ashutosh Chauhan (JIRA)" <ji...@apache.org> on 2013/04/03 19:01:20 UTC

[jira] [Commented] (HIVE-4167) Hive converts bucket map join to SMB join even when tables are not sorted

    [ https://issues.apache.org/jira/browse/HIVE-4167?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13621058#comment-13621058 ] 

Ashutosh Chauhan commented on HIVE-4167:
----------------------------------------

[~vikram.dixit] Does this happen only in presence of HIVE-3891 or even without it ?
                
> Hive converts bucket map join to SMB join even when tables are not sorted
> -------------------------------------------------------------------------
>
>                 Key: HIVE-4167
>                 URL: https://issues.apache.org/jira/browse/HIVE-4167
>             Project: Hive
>          Issue Type: Bug
>          Components: Query Processor
>    Affects Versions: 0.11.0
>            Reporter: Vikram Dixit K
>            Assignee: Vikram Dixit K
>         Attachments: HIVE-4167.patch
>
>
> If tables are just bucketed but not sorted, we are generating smb join operator. This results in loss of rows in queries.

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