Github user felixcheung commented on the issue: https://github.com/apache/spark/pull/19624 Maybe but it will say Version mismatch between Spark JVM and SparkR package. JVM version was 2.3.0-SNAPSHOT, while R package version was 2.1.2 I think it will be clear the numbers are different. If they are both 2.3.0 it won't show the warning.
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