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Herman van Hovell commented on SPARK-18491: ------------------------------------------- The only problem you can possibly run into is when your own code starts mutating such a field. Joda is quite opinionated, so not every ones likes it. You could try to create an encoder for joda time types (i would mail the dev list for some consensus). > 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 > Priority: Minor > > 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) -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org