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https://issues.apache.org/jira/browse/SPARK-37324?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17443486#comment-17443486
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Apache Spark commented on SPARK-37324:
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User 'sathiyapk' has created a pull request for this issue:
https://github.com/apache/spark/pull/34593
> Support Decimal RoundingMode.UP, DOWN, HALF_DOWN
> ------------------------------------------------
>
> Key: SPARK-37324
> URL: https://issues.apache.org/jira/browse/SPARK-37324
> Project: Spark
> Issue Type: New Feature
> Components: SQL
> Affects Versions: 3.2.0
> Reporter: Sathiya Kumar
> Priority: Minor
>
> Currently we support only Decimal RoundingModes : HALF_UP (round) and
> HALF_EVEN (bround). But we have use cases that needs RoundingMode.UP and
> RoundingMode.DOWN. In our projects we use UDF, i also see few people do
> complex operations to do the same with spark native methods.
> [https://stackoverflow.com/questions/34888419/round-down-double-in-spark/40476117]
> [https://stackoverflow.com/questions/54683066/is-there-a-rounddown-function-in-sql-as-there-is-in-excel]
> [https://stackoverflow.com/questions/48279641/oracle-sql-round-half]
>
> Opening support for the other rounding modes might interest a lot of use
> cases. Sql Server does something similar to this :
> [https://docs.microsoft.com/en-us/sql/t-sql/functions/round-transact-sql?view=sql-server-ver15]
>
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