The aggregation not_null does not check first to see if the type exists. If you know the type exists, it's slightly faster.
In practice, I don't think it's very useful. I may remove it from the documentation. On Fri, Feb 23, 2024 at 3:48 AM Karen K <kk4468...@gmail.com> wrote: > What is the difference between the aggregation types has_data and not_null > according to the documentation in > http://weewx.com/docs/5.0/reference/aggtypes/. > > -- > You received this message because you are subscribed to the Google Groups > "weewx-user" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to weewx-user+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/weewx-user/3eef09c7-c2fe-49a2-9e89-f1957c731a54n%40googlegroups.com > <https://groups.google.com/d/msgid/weewx-user/3eef09c7-c2fe-49a2-9e89-f1957c731a54n%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "weewx-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to weewx-user+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/weewx-user/CAPq0zECeyc90n6f6O1KbmwYTExvOr0NaDvZcNYRtLe-9m7qL4Q%40mail.gmail.com.
