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https://issues.apache.org/jira/browse/SPARK-8677?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Davies Liu resolved SPARK-8677.
-------------------------------
Resolution: Fixed
Fix Version/s: 1.5.0
Issue resolved by pull request 7056
[https://github.com/apache/spark/pull/7056]
> Decimal divide operation throws ArithmeticException
> ---------------------------------------------------
>
> Key: SPARK-8677
> URL: https://issues.apache.org/jira/browse/SPARK-8677
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Reporter: Liang-Chi Hsieh
> Fix For: 1.5.0
>
>
> Please refer to [BigDecimal
> doc|http://docs.oracle.com/javase/1.5.0/docs/api/java/math/BigDecimal.html]:
> {quote}
> ... the rounding mode setting of a MathContext object with a precision
> setting of 0 is not used and thus irrelevant. In the case of divide, the
> exact quotient could have an infinitely long decimal expansion; for example,
> 1 divided by 3.
> {quote}
> Because we provide a MathContext.UNLIMITED in toBigDecimal, Decimal divide
> operation will throw the following exception:
> {code}
> val decimal = Decimal(1.0, 10, 3) / Decimal(3.0, 10, 3)
> [info] java.lang.ArithmeticException: Non-terminating decimal expansion; no
> exact representable decimal result.
> [info] at java.math.BigDecimal.divide(BigDecimal.java:1690)
> [info] at java.math.BigDecimal.divide(BigDecimal.java:1723)
> [info] at scala.math.BigDecimal.$div(BigDecimal.scala:256)
> [info] at org.apache.spark.sql.types.Decimal.$div(Decimal.scala:272)
> {code}
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