If no date of any type is specified the daily summaries will be rebuilt from the time of last update through until the most recent archive record. For a normal functioning install these times will likely be the same and hence nothing is rebuilt (there is no need) so wee_database returns to the command prompt very quickly. On the other hand, the other extreme is if you drop the daily summaries first, all daily summaries are rebuilt from first to last archive record. Specific dates or date ranges are only rebuilt if a —date or —from and —to are provided. The console output should reflect what was done.
Is there anything making you suspect the current day is being rebuilt other than a quick return to the command prompt. A quick return does not necessarily mean anything was rebuilt. Gary -- 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/7e81f9c9-336d-488d-baa1-56f9796541a3%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.