sig
type select_single_op_fn =
Code_selection_context.code_selection_context ->
Algebra_type.algop_expr ->
Code_selection_context.code_selection_context
val build_order_by_code :
Code_selection_context.code_selection_context ->
Algebra_type.algop_expr ->
Xquery_common_ast.stablekind *
(Xquery_common_ast.sortkind * Xquery_common_ast.emptysortkind) list *
Xquery_algebra_ast.aoverloaded_signature_table ->
Algebra_type.alg_eval_code_dep *
Code_selection_context.code_selection_context
val build_group_code :
Code_selection_context.code_selection_context ->
Algebra_type.algop_expr ->
Code_group_order.select_single_op_fn ->
Xquery_algebra_ast.group_desc list ->
Algebra_type.alg_eval_code_dep *
Code_selection_context.code_selection_context
end