floatspan_set_numspan lower_upper_shift_tscale numspan_set_floatspan span_shift spanset_shift

lower_upper_shift_tscale() void lower_upper_shift_tscale ( TimestampTz *  lower, TimestampTz *  upper, const Interval *  shift, const Interval *  duration  ) Shift and/or scale period bounds by the intervals. Parameters [in] shift Interval to shift the bounds [in] duration Interval for the duration of the result [in,out] lower,upper Bounds of the period