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https://issues.apache.org/jira/browse/HIVE-12209?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14983418#comment-14983418
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Gopal V commented on HIVE-12209:
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Doesn't look like it, one failure looks like a float precision error.
I''ll fix the vectorized_case Spark/Tez out files.
> Vectorized simple CASE expressions with nulls
> ---------------------------------------------
>
> Key: HIVE-12209
> URL: https://issues.apache.org/jira/browse/HIVE-12209
> Project: Hive
> Issue Type: Improvement
> Components: Vectorization
> Affects Versions: 1.3.0, 1.2.1, 2.0.0
> Reporter: Gopal V
> Assignee: Gopal V
> Attachments: HIVE-12209.1.patch
>
>
> {{CASE when (d_day_name='Sunday') then ss_sales_price else null end}}
> {code}
> 2015-10-18T03:28:37,911 INFO [main]: physical.Vectorizer
> (Vectorizer.java:validateExprNodeDesc(1360)) - Failed to vectorize
> org.apache.hadoop.hive.ql.metadata.HiveException: Unable to vectorize custom
> UDF. Custom udf containing constant null argument cannot be currently
> vectorized.
> {code}
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