Today's glucose mean was held against a band built from whole days. By
mid-morning the day holds a fasting reading and nothing after, so an
ordinary morning read as "below your range". A glucose day still in
progress is now compared with the earlier days cut at the same local clock
time, read in SQL so a dense stream is averaged whole rather than through
its newest fifty rows. With fewer than seven earlier days that have
readings in those hours, today gets no verdict. The day-aggregate reader
gains the local-clock cut; an integration case pins it against the
in-memory fold in a half-hour zone.
Marc-André Bombeck
a6d841d3ae