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Posted to issues@spark.apache.org by "Hyukjin Kwon (JIRA)" <ji...@apache.org> on 2019/05/21 04:35:19 UTC

[jira] [Resolved] (SPARK-12373) Type coercion rule of dividing two decimal values may choose an intermediate precision that does not have enough number of digits at the left of decimal point

     [ https://issues.apache.org/jira/browse/SPARK-12373?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hyukjin Kwon resolved SPARK-12373.
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    Resolution: Incomplete

> Type coercion rule of dividing two decimal values may choose an intermediate precision that does not have enough number of digits at the left of decimal point 
> ---------------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: SPARK-12373
>                 URL: https://issues.apache.org/jira/browse/SPARK-12373
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>            Reporter: Yin Huai
>            Priority: Major
>              Labels: bulk-closed
>
> Looks like the {{widerDecimalType}} at https://github.com/apache/spark/blob/master/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/HiveTypeCoercion.scala#L432 can produce something like {{(38, 38)}} when we have have two operand types {{Decimal(38, 0)}} and {{Decimal(38, 38)}}. We should take a look at if there is more reasonable way to handle precision/scale.



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