That's not a join. Doing it in the application layer means that both
database tables must be fully loaded into RAM to process. Please do not
call them the same thing as an application layer "JOIN" and a database join
are far from the same thing.
On Sat, Dec 23, 2017 at 1:27 PM, Martin Urbanec <martin.urbanec(a)wikimedia.cz
wrote:
> You *can* join them, but not by using database logic. You must join them
> in your application.
>
> Martin
>
> so 23. 12. 2017 v 19:03 odesílatel Maximilian Doerr <
> maximilian.doerr(a)gmail.com> napsal:
>
>> Ah.
>>
>> Cyberpower678
>> English Wikipedia Account Creation Team
>> English Wikipedia Administrator
>> Global User Renamer
>>
>> On Dec 23, 2017, at 12:58, John <phoenixoverride(a)gmail.com
wrote:
>>
>> You can create user databases, however those are hosted on a different
>> server than the replicas, and we cannot join them.
>>
>> On Sat, Dec 23, 2017 at 12:55 PM, Maximilian Doerr <
>> maximilian.doerr(a)gmail.com
wrote:
>>
>>> So users can no longer create their own DBs now? Or am I missing
>>> something?
>>>
>>> Cyberpower678
>>> English Wikipedia Account Creation Team
>>> English Wikipedia Administrator
>>> Global User Renamer
>>>
>>> On Dec 23, 2017, at 12:44, Martin Domdey <animalia(a)gmx.net
wrote:
>>>
>>> Hi Maarten!
>>>
>>> I didn't got it by -announce, but I need it too in close future.
>>>
>>> Cheers,
>>> Martin ...
>>>
>>>
>>> --
>>> Diese Nachricht wurde von meinem Android Mobiltelefon mit GMX Mail
>>> gesendet.
>>> Am 23.12.2017, 14:29, Maarten Dammers <maarten(a)mdammers.nl> schrieb:
>>>>
>>>> Hi everyone,
>>>>
>>>> In the new database setup user databases are no longer possible on the
>>>> same servers as where the production databases are. I noticed on
>>>>
https://phabricator.wikimedia.org/T142807 Daniel saying "Death blow
>>>> for
>>>> GHEL coordinate extraction and WikiMiniAtlas." and on
>>>>
https://phabricator.wikimedia.org/T183066 several tools broke down.
>>>>
>>>> Do we have an overview of tools that are now broken? Did the database
>>>> admins actually contact the tool maintainers about the loss of
>>>> functionality or was this just send to the -announce list?
>>>>
>>>> Maarten
>>>>
>>>>
>>>>
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>>
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