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Hyukjin Kwon commented on SPARK-10501: -------------------------------------- Can we use {{monotonically_increasing_id}} instead? > support UUID as an atomic type > ------------------------------ > > Key: SPARK-10501 > URL: https://issues.apache.org/jira/browse/SPARK-10501 > Project: Spark > Issue Type: Improvement > Components: SQL > Reporter: Jon Haddad > Priority: Minor > > It's pretty common to use UUIDs instead of integers in order to avoid > distributed counters. > I've added this, which at least lets me load dataframes that use UUIDs that I > can cast to strings: > {code} > class UUIDType(AtomicType): > pass > _type_mappings[UUID] = UUIDType > _atomic_types.append(UUIDType) > {code} > But if I try to do anything else with the UUIDs, like this: > {code} > ratings.select("userid").distinct().collect() > {code} > I get this pile of fun: > {code} > scala.MatchError: UUIDType (of class > org.apache.spark.sql.cassandra.types.UUIDType$) > {code} -- 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