SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 4)
    Function count (children 1)
     ExpressionList
    Function min (children 1)
     ExpressionList (children 1)
      Identifier id
    Function max (children 1)
     ExpressionList (children 1)
      Identifier id
    Function avg (children 1)
     ExpressionList (children 1)
      Identifier id
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier test_d
