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From "Peter Vary (Jira)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-22805) Vectorization with conditional array or map is not implemented and throws an error
Date Fri, 31 Jan 2020 13:46:00 GMT

     [ https://issues.apache.org/jira/browse/HIVE-22805?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Peter Vary updated HIVE-22805:
------------------------------
    Attachment: HIVE-22805.patch

> Vectorization with conditional array or map is not implemented and throws an error
> ----------------------------------------------------------------------------------
>
>                 Key: HIVE-22805
>                 URL: https://issues.apache.org/jira/browse/HIVE-22805
>             Project: Hive
>          Issue Type: Bug
>          Components: Vectorization
>            Reporter: Peter Vary
>            Assignee: Peter Vary
>            Priority: Major
>         Attachments: HIVE-22805.patch
>
>
> The following queries throw an "Not supported" Exception:
> {code}
> DROP TABLE IF EXISTS cond_vector;
> CREATE TABLE cond_vector(a STRING) STORED AS ORC;
> INSERT OVERWRITE TABLE cond_vector VALUES("a/b");
> set hive.fetch.task.conversion=minimal;
> set hive.execution.mode=container;
> SELECT IF(1=1, MAP("a","b"), NULL) FROM cond_vector;
> EXPLAIN VECTORIZATION DETAIL SELECT IF(1=1, MAP("Mathematics","78"), NULL) FROM cond_vector;
> SELECT IF(1=1, ARRAY("c", "d"), NULL) FROM cond_vector;
> EXPLAIN VECTORIZATION DETAIL SELECT IF(1=1, ARRAY("a", "b"), NULL) FROM cond_vector;
> {code}
> One example of the Exception (maybe not exactly this on 4.0.0 branch, but close enough
to check):
> {code}
> Caused by: java.lang.RuntimeException: Not supported
> 	at org.apache.hadoop.hive.ql.exec.vector.ListColumnVector.copySelected(ListColumnVector.java:161)
> 	at org.apache.hadoop.hive.ql.exec.vector.expressions.IfExprCondExprNull.evaluate(IfExprCondExprNull.java:87)
> 	at org.apache.hadoop.hive.ql.exec.vector.expressions.IfExprCondExprCondExpr.evaluate(IfExprCondExprCondExpr.java:95)
> 	at org.apache.hadoop.hive.ql.exec.vector.expressions.IfExprCondExprBase.conditionalEvaluate(IfExprCondExprBase.java:68)
> 	at org.apache.hadoop.hive.ql.exec.vector.expressions.IfExprCondExprCondExpr.evaluate(IfExprCondExprCondExpr.java:110)
> 	at org.apache.hadoop.hive.ql.exec.vector.expressions.IfExprCondExprCondExpr.evaluate(IfExprCondExprCondExpr.java:95)
> 	at org.apache.hadoop.hive.ql.exec.vector.VectorSelectOperator.process(VectorSelectOperator.java:146)

> {code}



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