Set_cmp Set_eq Set_ge Set_gt Set_le Set_lt Set_ne Span_cmp Span_eq Span_ge Span_gt Span_le Span_lt Span_ne Spanset_cmp Spanset_eq Spanset_ge Spanset_gt Spanset_le Spanset_lt Spanset_ne

Set_cmp() Datum Set_cmp ( PG_FUNCTION_ARGS  ) Return -1, 0, or 1 depending on whether the first set is less than, equal to, or greater than the second one @sqlfn set_cmp()