module Print_xquery_physical_type:sig
..end
val string_of_physical_tuple_type : Xquery_physical_type_ast.physical_tuple_type -> string
val string_of_physical_type : Xquery_physical_type_ast.physical_type -> string
val string_of_physop_expr_name : Xquery_physical_algebra_ast.physop_expr_name -> string
val string_of_eval_sig : Xquery_algebra_ast.expr_eval_sig -> string