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https://issues.apache.org/jira/browse/SPARK-30904?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17042370#comment-17042370
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Yuming Wang commented on SPARK-30904:
-------------------------------------
Issue resolved by pull request 27654
https://github.com/apache/spark/pull/27654
> Thrift RowBasedSet serialization throws NullPointerException on NULL
> BigDecimal
> -------------------------------------------------------------------------------
>
> Key: SPARK-30904
> URL: https://issues.apache.org/jira/browse/SPARK-30904
> Project: Spark
> Issue Type: Bug
> Components: Spark Core
> Affects Versions: 3.0.0, 3.1.0
> Reporter: Christian Stuart
> Priority: Major
>
> Adding the following test to {{SparkThriftServerProtocolVersionsSuite}}
> reproduces the issue:
> {code:scala}
> test(s"$version get null as decimal") {
> testExecuteStatementWithProtocolVersion(version,
> "SELECT cast(null as decimal)") { rs =>
> assert(rs.next())
> assert(rs.getBigDecimal(1) === null)
> }
> }{code}
> The bug was introduced in https://github.com/apache/spark/commit/163f4a4
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