DatumGetSpanP DatumGetSpanSetP PG_GETARG_SPAN_P PG_GETARG_SPANSET_P PG_RETURN_SPAN_P PG_RETURN_SPANSET_P span_bound_cmp span_bound_qsort_cmp span_bounds span_deserialize span_lower_cmp span_serialize span_to_wkb_buf span_to_wkb_size span_upper_cmp spanarr_normalize SpanPGetDatum SpanSetPGetDatum

span_bounds() void span_bounds ( const Span *  s, double *  xmin, double *  xmax  )