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https://issues.apache.org/jira/browse/HIVE-3403?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Vikram Dixit K updated HIVE-3403:
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Attachment: auto_sortmerge_join_1_modified.q
I run with a modified version of the auto_sortmerge_join_1.q file (attached to
the JIRA) and create a query where 2 of the tables in a join are sorted and
bucketed and the 3rd table is not sorted. I have enabled the auto map join
convert config. I am seeing this exception:
FAILED: ClassCastException org.apache.hadoop.hive.ql.exec.SMBMapJ
oinOperator cannot be cast to org.apache.hadoop.hive.ql.exec.MapJoinOperator
I do not see the exception if I set the noConditionalTask.size to a size
greater than the size of the 2 small tables (src1 and small_table) for e.g. 500.
> user should not specify mapjoin to perform sort-merge bucketed join
> -------------------------------------------------------------------
>
> Key: HIVE-3403
> URL: https://issues.apache.org/jira/browse/HIVE-3403
> Project: Hive
> Issue Type: Bug
> Reporter: Namit Jain
> Assignee: Namit Jain
> Attachments: auto_sortmerge_join_1_modified.q, hive.3403.10.patch,
> hive.3403.11.patch, hive.3403.12.patch, hive.3403.13.patch,
> hive.3403.14.patch, hive.3403.15.patch, hive.3403.16.patch,
> hive.3403.17.patch, hive.3403.18.patch, hive.3403.19.patch,
> hive.3403.1.patch, hive.3403.21.patch, hive.3403.22.patch,
> hive.3403.23.patch, hive.3403.24.patch, hive.3403.25.patch,
> hive.3403.26.patch, hive.3403.2.patch, hive.3403.3.patch, hive.3403.4.patch,
> hive.3403.5.patch, hive.3403.6.patch, hive.3403.7.patch, hive.3403.8.patch,
> hive.3403.9.patch
>
>
> Currently, in order to perform a sort merge bucketed join, the user needs
> to set hive.optimize.bucketmapjoin.sortedmerge to true, and also specify the
> mapjoin hint.
> The user should not specify any hints.
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