I have questions with sections of the Wiki entry.
.
It says that I would need to edit the databinding in weewx.conf.
Modify wx_binding. When it creates the new, modified database, wee_database 
needs 
to know to use the wview_extended schema instead of the old, wview schema. 
You do this by changing the option schema in section [DataBindings] in 
weewx.conf.

However, my DataBindings are as shown in the Wiki already.

Perhaps wee_database --reconfigure took care of the entries?
Could all else but the database been upgraded at some point from when I 
installed until now and all I needed was the extended database?

I tried following the directions as given and see that I am missing some 
PATH.

gh@srvr:~# cd SQLITE_ROOT
-bash: cd: SQLITE_ROOT: No such file or directory

Wiki says:
You can either shuffle the databases around so the new database has the 
same name as the old database, or edit weewx.conf to use the new database 
name. To do the former:

It never addresses the later.

Finally, instead of allowing WeeWX to rebuild the database on start, why 
not have it done by command before starting WeeWX? If you are on a slower 
machine and have years of data, it could take some time. Some people (me 
for example) would worry that WeeWX hasn't started and try to stop WeeWX to 
review their edits and steps. Running wee_database -- rebuild-daily takes 
the guesswork out of the process.

I think I'd break the Wiki into two sections, one for the bog standard 
WeeWX install and the second for those using MySQL, Likely those with MySQL 
are more familiar with its operation.
Which begs a question. Who can edit the Wiki? How are edits approved. I 
would like to contribute, but not if it went live with no supervision.

Much more 'why' in the Wiki and I like that. I get easily confused by 
things that already exist or that fail though. Then I start reading more 
into something than I should. See me with a fresh box from Ikea sometime...

On Saturday, September 12, 2020 at 2:43:38 PM UTC-4, Tom Keffer wrote:

> This has become such a common question, I wrote a Wiki on how to do it 
> <https://github.com/weewx/weewx/wiki/Switching-to-the-new-wview_extended-schema>.
>  
> It's basically a long-winded version of your much more concise summary.
>
> -tk
>
>>
>>
>>

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