Number_to_tbox Numeric_to_tbox Set_to_tbox Span_to_tbox Spanset_to_tbox Tbox_to_floatspan Tbox_to_intspan Tbox_to_tstzspan Timestamptz_to_tbox

Tbox_to_intspan() Datum Tbox_to_intspan ( PG_FUNCTION_ARGS  ) Convert a temporal box into an integer span @sqlfn floatspan()