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Renjie Liu commented on FLINK-8953: ----------------------------------- Hi, Tim: I want to look into this, could you assign this to me? > Resolve unresolved field references in FieldComputer expressions > ---------------------------------------------------------------- > > Key: FLINK-8953 > URL: https://issues.apache.org/jira/browse/FLINK-8953 > Project: Flink > Issue Type: Improvement > Components: Table API & SQL > Reporter: Timo Walther > Priority: Major > > When implementing the {{FieldComputer.getExpression}} method, it is not > possible to use API classes but only internal expression case classes. > It would be great to also define timestamp extractors like: > {code} > def getExpression(fieldAccesses: Array[ResolvedFieldReference]): Expression > = { > // 'x.cast(Types.LONG) > // ExpressionParser.parseExpression("x.cast(LONG)") > } > {code} -- This message was sent by Atlassian JIRA (v7.6.3#76005)