SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 2)
    Function sumMap (children 1)
     ExpressionList (children 1)
      Identifier sMap
    Function sumMapMerge (children 1)
     ExpressionList (children 1)
      Identifier aMap
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier test_smt
