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Stephan Ewen commented on FLINK-2410: ------------------------------------- [~fhueske] is right. The initial design was that {{TypeInformation}} is a purely pre-flight (client side) construct. Shipped should be only serializers and comparators. Seems at some point people subtly broke with that design, otherwise I would not know why it all of a sudden implements {{Serializable}}. > PojoTypeInfo is not completely serializable > ------------------------------------------- > > Key: FLINK-2410 > URL: https://issues.apache.org/jira/browse/FLINK-2410 > Project: Flink > Issue Type: Bug > Components: Java API > Reporter: Timo Walther > Assignee: Timo Walther > > Table API requires PojoTypeInfo to be serializable. The following code fails: > {code} > Table finishedEtlTable = maxMeasurements > .join(stationTable).where("s_station_id = m_station_id") > .select("year, month, day, value, country, name"); > DataSet<MaxTemperature> maxTemp = tableEnv.toDataSet(finishedEtlTable, > MaxTemperature.class); > maxTemp > .groupBy("year") > .sortGroup("value", Order.DESCENDING) > .first(1) > .print(); > {code} -- This message was sent by Atlassian JIRA (v6.3.4#6332)