module Code_tuple_tree_pattern: sig .. end
val build_tuple_tree_pattern_code : Code_selection_context.code_selection_context ->
       Algebra_type.algop_expr ->
       Xquery_common_ast.crname * Xquery_algebra_ast.twig_pattern ->
       Algebra_type.alg_eval_code_dep *
       Code_selection_context.code_selection_context
val select_physical_op : Code_selection_context.code_selection_context ->
       Algebra_type.algop_expr ->
       Xquery_common_ast.crname * Xquery_algebra_ast.twig_pattern ->
       Xquery_physical_algebra_ast.physop_expr_name