[jira] (FLINK-5662) Alias in front of output fails

[Timo Walther (JIRA)]

Title: Message Title

Timo Walther commented on FLINK-5662   Re: Alias in front of output fails You are right. This issue is not trivial. Actually we need a `ProjectRemoveRule` that pushes the field names in the input node, such that the field names are not getting lost. Fabian Hueske and I already discussed about having an easier architecture with conversion mappers at the beginning and end, and only operators handling row types in the middle. Maybe it is time for that now. We could then have a additional rule that merges two conversion mappers if nothing is in between. Table t = tEnv.fromDataSet(text, "text").groupBy("text").select("text AS line"); even fails with a CodeGen exception. Add Comment   This message was sent by Atlassian JIRA (v6.3.15#6346-sha1:dbc023d)