Github user discipleforteen closed the pull request at:
https://github.com/apache/spark/pull/16637
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GitHub user discipleforteen opened a pull request:
https://github.com/apache/spark/pull/16637
[SPARK-19225][SQL]round decimal return normal value but not null
## What changes were proposed in this pull request?
in https://issues.apache.org/jira/browse/SPARK-19225,
