If you leave it alone, either will work just fine.

On Fri, Jan 22, 2021 at 10:23 AM Manfred Nadymacek <[email protected]>
wrote:

> i was confused because this !
> Default in 4.3 :
> [DataBindings]
>
>     [[wx_binding]]
>         # The database must match one of the sections in [Databases].
>         # This is likely to be the only option you would want to change.
>         database = archive_sqlite
>         # The name of the table within the database
>         table_name = archive
>         # The manager handles aggregation of data for historical summaries
>         manager = weewx.*manager.DaySummaryManager*
>         # The schema defines the structure of the database.
>         # It is *only* used when the database is created.
>         schema = schemas.*wview_extended*.schema
>
> and on my old instance 3.9.x:
> [DataBindings]
>
>     [[wx_binding]]
>         # The database must match one of the sections in [Databases].
>         # This is likely to be the only option you would want to change.
>         database = archive_sqlite
>         # The name of the table within the database
>         table_name = archive
>         # The manager handles aggregation of data for historical summaries
>         manager = weewx.*wxmanager.WXDaySummaryManager*
>         # The schema defines the structure of the database.
>         # It is *only* used when the database is created.
>         schema = schemas.*wview*.schema
>
>
> My fear as i said is that only copy cannot work with it... It't not
> written in the docs...
>
> br
>
> Am Fr., 22. Jan. 2021 um 19:06 Uhr schrieb Tom Keffer <[email protected]>:
>
>> Well done, but, as I said, there is no reason to migrate to the new
>> schema unless you intend to take advantage of the new database types.
>>
>> On Fri, Jan 22, 2021 at 9:58 AM Manfred Nadymacek <[email protected]>
>> wrote:
>>
>>> Thx for answering, I did following after long search....
>>> Copy from old instance to the new installed 4.3.x version.
>>> Then wee_database weewx.conf --reconfigure
>>> replace _new db to orig name....
>>> Restart and rebuilt daily summary take ~1 houre for 500000 records
>>> now it's migrated to new schema so for future features releases.
>>>
>>> br
>>>
>>> [email protected] schrieb am Freitag, 22. Januar 2021 um 14:56:14 UTC+1:
>>>
>>>> The schema is used only when you create a new database. WIth old
>>>> databases, the schema is read directly from the database. So, you can just
>>>> copy your old database to the new installation. WeeWX will continue to 
>>>> work.
>>>>
>>>> If you want to *change* schemas, that's something different, but there
>>>> is no reason to do so unless you want to take advantage of the new types.
>>>>
>>>> -tk
>>>>
>>>> On Fri, Jan 22, 2021 at 1:33 AM Manfred Nadymacek <[email protected]>
>>>> wrote:
>>>>
>>>>> Hi all,
>>>>> My problem is following:
>>>>> I run since 4,5 years my weewx station hosted on a raspberry pi.
>>>>> I start 2016 with a prober version and update it to latest 3.9 version.
>>>>>
>>>>> Now  I reinstall a new raspberry Pi with lastest raspian version and
>>>>> weewx 4.3 and do also all new configuration and add new skins aso...
>>>>>
>>>>> BUT: I found out that the old version has following Databinding:
>>>>> [DataBindings]
>>>>>
>>>>>     [[wx_binding]]
>>>>>         # The database must match one of the sections in [Databases].
>>>>>         # This is likely to be the only option you would want to
>>>>> change.
>>>>>         database = archive_sqlite
>>>>>         # The name of the table within the database
>>>>>         table_name = archive
>>>>>         # The manager handles aggregation of data for historical
>>>>> summaries
>>>>>         manager = weewx.wxmanager.WXDaySummaryManager
>>>>>         # The schema defines the structure of the database.
>>>>>         # It is *only* used when the database is created.
>>>>>         schema = schemas.wview.schema
>>>>>
>>>>>
>>>>> And in the new config has already the new extrended schema:
>>>>> [DataBindings]
>>>>>
>>>>>     [[wx_binding]]
>>>>>         # The database must match one of the sections in [Databases].
>>>>>         # This is likely to be the only option you would want to
>>>>> change.
>>>>>         database = archive_sqlite
>>>>>         # The name of the table within the database
>>>>>         table_name = archive
>>>>>         # The manager handles aggregation of data for historical
>>>>> summaries
>>>>>         manager = weewx.manager.DaySummaryManager
>>>>>         # The schema defines the structure of the database.
>>>>>         # It is *only* used when the database is created.
>>>>>         schema = schemas.wview_extended.schema
>>>>>
>>>>> My idea would be i will shutdown the old weewx instance and copy the
>>>>> old database to the correct folder in the new installed weewx version.
>>>>> BUT i guess that will not work and my fear is the old data are lost or
>>>>> not visible.
>>>>>
>>>>> CAN anybody help me to migrate the old sqlite database to the new 4.x
>>>>> schema standard without lost my history data??
>>>>>
>>>>> Thx very much!
>>>>> Manfred
>>>>>
>>>>>
>>>>>
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>>>>>
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