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Posted to issues@spark.apache.org by "Damian Momot (JIRA)" <ji...@apache.org> on 2016/11/17 12:09:58 UTC

[jira] [Created] (SPARK-18491) Spark uses mutable classes for date/time types mapping

Damian Momot created SPARK-18491:
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             Summary: Spark uses mutable classes for date/time types mapping
                 Key: SPARK-18491
                 URL: https://issues.apache.org/jira/browse/SPARK-18491
             Project: Spark
          Issue Type: Improvement
            Reporter: Damian Momot


TimestampType is mapped to java.sql.Timestamp
DateType is mapped to java.sql.Date

Those both java types are mutable and thus their usage is highly discourage, especially in distributed computing which uses lazy, functional approach

Mapping to immutable joda times should be enough for now (until scala 2.12 + jdk8 java.time is available for spark)



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