SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 1)
    Function count (children 1)
     ExpressionList
   TablesInSelectQuery (children 2)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier local_table_l (alias l)
    TablesInSelectQueryElement (children 2)
     TableExpression (children 1)
      TableIdentifier dis_table_r (alias r)
     TableJoin (children 1)
      Function equals (children 1)
       ExpressionList (children 2)
        Identifier l.c
        Identifier r.c
