Package org.apache.flink.table.api

Interface AggregatedTable

@PublicEvolving public interface AggregatedTable
A table that has been performed on the aggregate function.

  • Method Summary

    Modifier and Type
    Method
    Description
    Table
    select(org.apache.flink.table.expressions.Expression... fields)
    Performs a selection operation after an aggregate operation.

  • Method Details

    • select

      Table select(org.apache.flink.table.expressions.Expression... fields)
      Performs a selection operation after an aggregate operation. The field expressions cannot contain table functions and aggregations.

      Example: 

      
 tableEnv.createTemporarySystemFunction("aggFunc", MyAggregateFunction.class);
 table.groupBy($("key"))
   .aggregate(call("aggFunc", $("a"), $("b")).as("f0", "f1", "f2"))
   .select($("key"), $("f0"), $("f1"));

      Scala Example: 

      
 val aggFunc = new MyAggregateFunction
 table.groupBy($"key")
   .aggregate(aggFunc($"a", $"b") as ("f0", "f1", "f2"))
   .select($"key", $"f0", $"f1")