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Posted to issues@hive.apache.org by "Matt McCline (JIRA)" <ji...@apache.org> on 2016/02/19 14:01:18 UTC
[jira] [Updated] (HIVE-13084) Vectorization throws exception where
there is case statement in group by
[ https://issues.apache.org/jira/browse/HIVE-13084?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Matt McCline updated HIVE-13084:
--------------------------------
Attachment: vector_between_date.q
> Vectorization throws exception where there is case statement in group by
> ------------------------------------------------------------------------
>
> Key: HIVE-13084
> URL: https://issues.apache.org/jira/browse/HIVE-13084
> Project: Hive
> Issue Type: Bug
> Components: Vectorization
> Reporter: Rajesh Balamohan
> Assignee: Matt McCline
> Attachments: vector_between_date.q
>
>
> When there is case statement in group by, hive throws unable to vectorize exception.
> e.g query just to demonstrate the problem
> {noformat}
> explain select l_partkey, case when l_commitdate between '2015-06-30' AND '2015-07-06' THEN '2015-06-30' END as wk from lineitem_test_l_shipdate_ts group by l_partkey, case when l_commitdate between '2015-06-30' AND '2015-07-06' THEN '2015-06-30' END;
> org.apache.hadoop.hive.ql.metadata.HiveException: Could not vectorize expression: org.apache.hadoop.hive.ql.plan.ExprNodeGenericFuncDesc
> Vertex dependency in root stage
> Reducer 2 <- Map 1 (SIMPLE_EDGE)
> Stage-0
> Fetch Operator
> limit:-1
> Stage-1
> Reducer 2
> File Output Operator [FS_7]
> Group By Operator [GBY_5] (rows=888777234 width=108)
> Output:["_col0","_col1"],keys:KEY._col0, KEY._col1
> <-Map 1 [SIMPLE_EDGE]
> SHUFFLE [RS_4]
> PartitionCols:_col0, _col1
> Group By Operator [GBY_3] (rows=1777554469 width=108)
> Output:["_col0","_col1"],keys:_col0, _col1
> Select Operator [SEL_1] (rows=1777554469 width=108)
> Output:["_col0","_col1"]
> TableScan [TS_0] (rows=1777554469 width=108)
> rajesh@lineitem_test_l_shipdate_ts,lineitem_test_l_shipdate_ts,Tbl:COMPLETE,Col:NONE,Output:["l_partkey","l_commitdate"]
> {noformat}
> \cc [~mmccline], [~gopalv]
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