A 'a Sort_criteria.t
specifies a list of columns by which to sort the rows of a
table, in order of precedence from highest to lowest. Each column's sort criteria is
made up of a direction and a value of type 'a
, which varies as the sort criteria
goes through several rounds of processing.
module By_column : sig ... end
include sig ... end
val t_of_sexp : (Base.Sexp.t ‑> 'a) ‑> Base.Sexp.t ‑> 'a t
val sexp_of_t : ('a ‑> Base.Sexp.t) ‑> 'a t ‑> Base.Sexp.t