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Adrian Wang commented on SPARK-8864: ------------------------------------ Thanks for the design. Two comments: 1. If a IntervalType value is in year-month format, we cannot use 100ns to represent it. Hive use two internal types to handle year-month and day-time separately. 2. When casting TimestampType into StringType, or casting from StringType(unless it is a ISO8601 time string which contains timezone info), we should also consider timezone. > Date/time function and data type design > --------------------------------------- > > Key: SPARK-8864 > URL: https://issues.apache.org/jira/browse/SPARK-8864 > Project: Spark > Issue Type: Sub-task > Components: SQL > Reporter: Reynold Xin > Assignee: Reynold Xin > Fix For: 1.5.0 > > Attachments: SparkSQLdatetimeudfs.pdf > > > Please see the attached design doc. -- 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