CreateQuery test (children 3)
 Identifier test
 Columns definition (children 1)
  ExpressionList (children 2)
   ColumnDeclaration agg1 (children 1)
    DataType AggregateFunction (children 1)
     ExpressionList (children 2)
      Identifier sum
      DataType UInt64
   ColumnDeclaration agg2 (children 1)
    DataType AggregateFunction (children 1)
     ExpressionList (children 2)
      Identifier sum
      DataType UInt64
 Storage definition (children 1)
  Function Memory
