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

Span_to_tbox() Datum Span_to_tbox ( PG_FUNCTION_ARGS  ) Convert a span into a temporal box @sqlfn tbox()