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From twalthr <...@git.apache.org>
Subject [GitHub] flink pull request #3026: [FLINK-2980] [table] Support for GROUPING SETS cla...
Date Mon, 23 Jan 2017 14:13:14 GMT
Github user twalthr commented on a diff in the pull request:

    --- Diff: flink-libraries/flink-table/src/main/scala/org/apache/flink/table/api/table.scala
    @@ -928,5 +1032,151 @@ class GroupWindowedTable(
         val fieldExprs = ExpressionParser.parseExpressionList(fields)
         select(fieldExprs: _*)
    +  * A table that has been grouped on several sets of grouping keys.
    +  */
    +class GroupingSetsTable(
    --- End diff --
    In order to reduce the code complexity, we should adapt `GroupedTable` and do a case distinction
there. 4 kinds of grouped tables are too much. 

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