> On 31 Oct 2018, at 16:19, Ecaterina Moraru (Valica) <vali...@gmail.com> wrote:
>
> On Wed, Oct 31, 2018 at 5:12 PM Vincent Massol <vinc...@massol.net> wrote:
>
>> Hi Caty,
>>
>> Thanks but I think we should focus on the databases that our users use for
>> XWiki. We have that info already with the active installs.
>>
>
> https://www.xwiki.org/xwiki/bin/view/ActiveInstalls/
> k, I understand, with the note that those graphs are influenced by what we
> support.
> In the case of Active Install, would be nice to display also the DB
> versions.
Yes. However we can’t support all versions and people usually lag behind. So I
don’t think we should support more than the latest one. Already hard to do.
BTW we do have the versions, we just don’t display them.
See http://activeinstalls.xwiki.org/#/dashboard
I did a quick pie chart for mysql:
https://www.evernote.com/l/AHe-MYCE-09Nuoyau9jFQf45OgtIZKmaqk0
Thanks
-Vincent
>
> Thanks,
> Caty
>
>
>>
>> It’s already a lot of work :)
>>
>> My goal with this thread was not fully review the list of supported
>> databses, just to make it more clear the versions of them we want to
>> support.
>>
>> Thanks
>> -Vincent
>>
>>> On 31 Oct 2018, at 15:57, Ecaterina Moraru (Valica) <vali...@gmail.com>
>> wrote:
>>>
>>> Another top
>>>
>> https://www.eversql.com/most-popular-databases-in-2018-according-to-stackoverflow-survey/
>>>
>>> On Wed, Oct 31, 2018 at 4:45 PM Ecaterina Moraru (Valica) <
>> vali...@gmail.com>
>>> wrote:
>>>
>>>>
>>>>
>>>> On Wed, Oct 31, 2018 at 3:53 PM Vincent Massol <vinc...@massol.net>
>> wrote:
>>>>
>>>>> Hi Caty,
>>>>>
>>>>>> On 31 Oct 2018, at 14:43, Ecaterina Moraru (Valica) <
>> vali...@gmail.com>
>>>>> wrote:
>>>>>>
>>>>>> IMO we should just write we support:
>>>>>> * HyperSQL 2.x Latest
>>>>>> * MySQL 5.x Latest
>>>>>> * PostgreSQL 9.x Latest
>>>>>> * Oracle 11.x Latest
>>>>>> not sure what help would do to have the explicit 2.4.1, 5.7.24,
>> 9.6.10,
>>>>>> 11.2.0.4.0 versions.
>>>>>
>>>>> Yes, this is what I proposed.
>>>>>
>>>>>>
>>>>>> Also I'm sure we won't keep up with the versions, so they won't mean
>>>>>> latest.
>>>>>> When we do the tests we should always fix and test on the latest one.
>>>>>> And this 'latest' behavior is consistent with what we do for Browsers,
>>>>> with
>>>>>> the exception that we are a bit more descriptive by giving the DB
>> cycle.
>>>>>
>>>>> Sure. Note that there’s more in this thread, for example:
>>>>>
>>>>> 1) What does latest mean?
>>>>> 2) What about the other 2 questions I asked?
>>>>>
>>>>
>>>> See
>>>>
>>>>
>> https://trends.google.com/trends/explore?cat=13&date=today%205-y&q=%2Fm%2F01vw9z,%2Fm%2F04y3k,%2Fm%2F0120vr,%2Fm%2F05ynw,Hyper%20SQL
>>>> and
>>>>
>>>>
>> https://www.statista.com/statistics/809750/worldwide-popularity-ranking-database-management-systems/
>>>>
>>>> According to those pages my questions are:
>>>> * Why are we supporting "Hypersonic DB" ? - but hey, apparently it's in
>>>> the jetty thing. k :) Here we should just say latest, without any
>> version
>>>> to it. This DB is anyway only recommended for the demo version.
>>>> * Why don't we support Microsoft SQL Server?
>>>>
>>>> Another reference:
>>>> https://db-engines.com/en/ranking
>>>>
>>>> * MongoDB also is in the top 5 for 2018 in multiple resources. Should /
>>>> could we also support that? In the Relational Databases section, DB2 is
>>>> listed, see https://db-engines.com/en/ranking/relational+dbms
>>>>
>>>> Anyway, I think it would be enough if we support the top 3 DB for the
>>>> latest versions. This would mean just MySQL 8.x instead of MySQL 5.x.
>> Could
>>>> not find any relevant comparison for DB versions. Found a graph from
>> 2015
>>>> in https://plumbr.io/blog/io/most-popular-relational-databases where
>>>> MySQL 5.6 was most popular (long time ago), so not sure what we could
>> use
>>>> as a reference. On the other hand MySQL 8.0 launched 6 month ago. So
>>>> indeed, we should support the latest 5.7.x (5.7.24) and also 8.0.x
>>>> (8.0.13), see https://en.wikipedia.org/wiki/MySQL#Release_history
>>>>
>>>> Regarding PostgreSQL, IMO we should support (10.5 || 9.6.10) and 11.0,
>> see
>>>> https://en.wikipedia.org/wiki/PostgreSQL#Release_history
>>>>
>>>> Regarding Oracle Database, we should support 12.2.0.1 and 18.1.0, see
>>>> https://en.wikipedia.org/wiki/Oracle_Database#Releases_and_versions
>>>>
>>>> Regarding Microsoft SQL Server it should be (in case we decide it) SQL
>>>> Server 2017, see
>>>> https://en.wikipedia.org/wiki/Microsoft_SQL_Server#Currently
>>>>
>>>> My rule was: latest/latest + the latest stable/previous version.
>>>>
>>>> Thanks,
>>>> Caty
>>>>
>>>>
>>>>>
>>>>> WDYT about that?
>>>>>
>>>>> Thanks
>>>>> -Vincent
>>>>>
>>>>>
>>>>>>
>>>>>> Thanks,
>>>>>> Caty
>>>>>>
>>>>>>
>>>>>> On Wed, Oct 31, 2018 at 12:11 PM Simon Urli <simon.u...@xwiki.com>
>>>>> wrote:
>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> On 31/10/2018 10:52, Thomas Mortagne wrote:
>>>>>>>> On Wed, Oct 31, 2018 at 10:28 AM Vincent Massol <vinc...@massol.net
>>>
>>>>>>> wrote:
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>
>>>>>>>>>> On 31 Oct 2018, at 10:15, Simon Urli <simon.u...@xwiki.com>
>> wrote:
>>>>>>>>>>
>>>>>>>>>> Hi,
>>>>>>>>>>
>>>>>>>>>> On 31/10/2018 09:06, Vincent Massol wrote:
>>>>>>>>>>> Hi devs,
>>>>>>>>>>> We currently have
>>>>>>>
>> https://dev.xwiki.org/xwiki/bin/view/Community/DatabaseSupportStrategy
>>>>>>>>>>> However, it doesn’t say explicitly which versions we officially
>>>>>>> support:
>>>>>>>>>>> * For HSQLDB it says 2.3.3 which is wrong since the latest
>> version
>>>>> is
>>>>>>> 2.4.1
>>>>>>>>>>> * For MySQL it says 5.x but doesn’t specify which specific
>>>>> version(s)
>>>>>>>>>>> * Same for other DBs
>>>>>>>>>>> We cannot really support every versions since supporting means
>>>>>>> testing too.
>>>>>>>>>>> So what I propose:
>>>>>>>>>>> Question 1: definition
>>>>>>>>>>> * We say we support the latest stable version of the databases
>> for
>>>>> a
>>>>>>> given version cycle
>>>>>>>>>>> ** For MySQL, it’s the latest of the 5.x cycle, which is 5.7.24
>> as
>>>>> of
>>>>>>> today (see https://hub.docker.com/_/mysql/)
>>>>>>>>>>> ** For PostgreSQL, it’s the latest of the 9.x cycle, which is
>>>>> 9.6.10
>>>>>>> as of today (see https://hub.docker.com/_/postgres/)
>>>>>>>>>>> ** For Oracle, it’s the latest of the 11.x cycle, which is
>>>>> 11.2.0.4.0
>>>>>>> as of today (see
>>>>>>>
>>>>>
>> https://www.oracle.com/technetwork/database/enterprise-edition/downloads/index.html
>>>>>>> )
>>>>>>>>>>
>>>>>>>>>> +1
>>>>>>>>>>
>>>>>>>>>>> Question 2: review what we support
>>>>>>>>>>> * For MySQL I think we could also start supporting MySQL 8.x (ie
>>>>> the
>>>>>>> latest version of that cycle). We have an issue open for it
>> currently:
>>>>>>> https://jira.xwiki.org/browse/XWIKI-15215
>>>>>>>>>>> * For PostgreSQL we could also start supporting versions 11.x (ie
>>>>> the
>>>>>>> latest version of that cycle)
>>>>>>>>>>> * For Oracle, we could also start supporting versions 12.x (ie
>> the
>>>>>>> latest version of that cycle)
>>>>>>>>>>
>>>>>>>>>> +0 I don't really know how much effort it involves to ensure the
>>>>>>> support of the latest version of each database and to fix the bugs
>>>>>>> accordingly.
>>>>>>>>>>
>>>>>>>>>>> Question 3: decide if we drop some support
>>>>>>>>>>> * Is there any cycle that we should support for? Right now I
>> think
>>>>>>> that MySQL 5.x is still heavily used, same for postgreSQL 9.x I
>> guess.
>>>>>>> Don’t know for Oracle.
>>>>>>>>>>> * Any idea?
>>>>>>>>>>
>>>>>>>>>> What about the cycles that are bundled in major LTS distributions?
>>>>>>>>>
>>>>>>>>> You mean the versions from apt-get for ex (when using the default
>>>>>>> repos)?
>>>>>>>>>
>>>>>>>>> Indeed the idea could to follow one of them. Any suggestion for
>> which
>>>>>>> one to follow and where the info is?
>>>>>>>>
>>>>>>>> Since we provide Debian package one good reference to know which
>>>>>>>> version of MySQL to support IMO would be
>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>
>> https://packages.debian.org/search?keywords=mysql-server&searchon=names&exact=1
>>>>>>>>
>>>>>>>> So it would be good to support 5.5 and 5.7
>>>>>>>
>>>>>>> Maybe it worth it to also look on Ubuntu packages for the LTS, as
>> they
>>>>>>> don't follow the same cycle:
>>>>>>> https://packages.ubuntu.com/search?keywords=mysql-server
>>>>>>>
>>>>>>> Apparently for now version are the same than for Debian.
>>>>>>>>
>>>>>>>> Here is the one for postgresql (since we also have a pgsql based
>>>>> Debian
>>>>>>> package)
>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>
>> https://packages.debian.org/search?keywords=postgresql&searchon=names&exact=1
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>
>> https://packages.ubuntu.com/search?suite=default§ion=all&arch=any&keywords=postgresql&searchon=names
>>>>>>>
>>>>>>> So here I see 9.3, 9.5, 10.5
>>>>>>>
>>>>>>>>
>>>>>>>> So 9.4, 9.6 and 11
>>>>>>>>
>>>>>>>>>
>>>>>>>>> Thanks
>>>>>>>>> -Vinent
>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> Simon
>>>>>>>>>>
>>>>>>>>>>> So WDYT about the 3 questions?
>>>>>>>>>>> Thanks
>>>>>>>>>>> -Vincent
>>>>>>>>>>
>>>>>>>>>> --
>>>>>>>>>> Simon Urli
>>>>>>>>>> Software Engineer at XWiki SAS
>>>>>>>>>> simon.u...@xwiki.com
>>>>>>>>>> More about us at http://www.xwiki.com
>>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> Simon Urli
>>>>>>> Software Engineer at XWiki SAS
>>>>>>> simon.u...@xwiki.com
>>>>>>> More about us at http://www.xwiki.com
>>>>>>>
>>>>>
>>>>>
>>
>>
