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. 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 > >>>>> > >>> > >>> > >
