Hi Mark,
a few remarks (none of them positive, sorry!):
- SQL Server 2014 is too young, we cannot drop support for it just yet
(in another 2-4 years maybe... upgrades of proprietary databases goes very
slowly due to the licencing fees they have to pay, on top of all the tests
and migration procedures involved... there was recently an article with
scary numbers of Windows 2000 and 2003 servers still running in public
administrations)
- Standard WKB cannot represent curves, for example in the PostGIS case
we had to roll special extensions for its EWKB format (afaik unique to
postgis) in order to read curves, do you know what Microsoft did to support
them?
- I have vague memories that SQLServer WKB encoding methods were
horribly slow a few years ago, compared to just decoding the structs, do
you know if that improved?
That said, the source is open, so you're free to try out the setup you're
proposing, if it's better (faster, much easier to maintain, with some way
to handle curves, given the ) then we can consider it, maybe as an option
in the factory so that we can continue to support those that prefer a open
source driver and/or needto run on older versions.
Cheers
Andrea
PS: Aside, sql server is one of those proprietary databases that devs work
on only under contract... so unless there is resourcing to do the work
(contracts, or someone that wants to work in in their spare time), nothing
is going to be changed, regardless of the outcome of these discussions
(yes, I know it's annoying, but I prefer to be forthcoming).
On Mon, Aug 27, 2018 at 6:33 PM Mark Prins <mc.pr...@gmail.com> wrote:
> Hi Olle, Andrea,
>
> I was looking at the Microsoft JDBC driver docs this weekend and noticed
> that the MS driver now actually has both a Geometry and a Geography
> class now that provide both a STGeomFromText(String wkt, int SRID) and a
> STGeomFromWKB(byte[] wkb) method [1] as well as STAsBinary()/STAsText()
> methods so going back-and-forth to eg a JTS geometry should be a breeze.
>
> It may be worth considering a new module or dialect that leverages the
> possibilities that the JDBC driver exposes instead of continuing on the
> old path of decoding shapes, segments and figures from the binary data
> which gets increasingly difficult with compound objects.
>
> This may mean dropping support for sqlserver 2014 and definitely the
> jdts driver, het good thing is that the Microsoft driver is now
> available in Maven Central[2] and available as Open Source[3] (MIT
> licensed) so no hassle with separate downloads and installs.
>
> [1]
>
> https://docs.microsoft.com/en-us/sql/connect/jdbc/use-spatial-datatypes?view=sql-server-2017
>
> [2]
>
> https://docs.microsoft.com/en-us/sql/connect/jdbc/download-microsoft-jdbc-driver-for-sql-server?view=sql-server-2017
>
> [3] https://github.com/Microsoft/mssql-jdbc
>
>
> On 07-06-18 18:14, Olle Markljung wrote:
> > Hehe yeah I understand :)
> >
> > I’ll try to make the estimate myself.
> >
> > /Olle
> >
> >
> > tors 7 juni 2018 kl. 17:28 skrev Andrea Aime
> > <andrea.a...@geo-solutions.it <mailto:andrea.a...@geo-solutions.it>>:
> >
> > Hi Olle,
> > I have them, but we don't discuss estimates outside of private
> > business inquiries, sorry :-)
> > That said, estimates are personal, they change depending on
> > experience, topic and the like, so
> > they would not be much use anyways.
> >
> > If you decide you want someone else to do it for you, you can
> > contact commercial support providers
> > to get an estimate:
> > http://geoserver.org/support/
> >
> > Cheers
> > Andrea
> >
> >
> > On Thu, Jun 7, 2018 at 4:46 PM, Olle Markljung <marklj...@gmail.com
> > <mailto:marklj...@gmail.com>> wrote:
> >
> > Hi Andrea and Mark
> >
> > Thank you for the swift response!
> >
> > Andrea, do you have a ballpark number of hours it took to
> > implement the support for curves in Oracle or PostGIS?
> >
> > Mark, did you have an estimation to complete the work you
> started?
> >
> > If I don’t find the time myself I’ll try to find funding and
> > seek commercial help and then it would be great to have a
> > ballpark number to start with.
> >
> > Regards,
> > Olle Markljung
> >
> > tors 7 juni 2018 kl. 14:58 skrev Mark Prins <mc.pr...@gmail.com
> > <mailto:mc.pr...@gmail.com>>:
> >
> > On 07-06-18 13:32, Olle Markljung wrote:
> > > Hello all
> > >
> > > I have users that would be helped if curve support for
> > SQL Server became
> > > real.
> > > I'm not sure if the implementation is needed in GeoServer
> > or GeoTools
> > > but I reach out here first.
> > >
> > > Are there others also seeking this support?
> >
> > Ik had a look into this some years ago but our funding
> > evaporated, so it
> > stranded, see
> https://osgeo-org.atlassian.net/browse/GEOT-5512
> >
> > some unfinished work is in:
> >
> https://github.com/mprins/geotools/commit/e43286e7bae7101af0dad4edbee40f99ca81d4eb
> >
> > docs are available at:
> >
> https://msdn.microsoft.com/en-us/library/ee320858%28v=sql.105%29.aspx?f=255&MSPPError=-2147217396
> >
> > Mark
> >
> >
>
> ------------------------------------------------------------------------------
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> >
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> >
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> >
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> >
> >
> >
>
> ------------------------------------------------------------------------------
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> > Geoserver-users mailing list
> >
> > Please make sure you read the following two resources before
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> > http://geoserver.org/comm/userlist-guidelines.html
> >
> > If you want to request a feature or an improvement, also see
> > this:
> >
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> >
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> > https://lists.sourceforge.net/lists/listinfo/geoserver-users
> >
> >
> >
> >
> > --
> >
> > Regards, Andrea Aime == GeoServer Professional Services from the
> > experts! Visit http://goo.gl/it488V for more information. == Ing.
> > Andrea Aime @geowolf Technical Lead GeoSolutions S.A.S. Via di
> > Montramito 3/A 55054 Massarosa
> > <
> https://maps.google.com/?q=Via+di+Montramito+3/A%0D%0A55054++Massarosa&entry=gmail&source=g
> >
> > (LU) phone: +39 0584 962313 fax: +39 0584 1660272 mob: +39 339
> > 8844549 http://www.geo-solutions.it
> > http://twitter.com/geosolutions_it
> > ------------------------------------------------------- /Con
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--
Regards, Andrea Aime == GeoServer Professional Services from the experts!
Visit http://goo.gl/it488V for more information. == Ing. Andrea Aime
@geowolf Technical Lead GeoSolutions S.A.S. Via di Montramito 3/A 55054
Massarosa (LU) phone: +39 0584 962313 fax: +39 0584 1660272 mob: +39 339
8844549 http://www.geo-solutions.it http://twitter.com/geosolutions_it
------------------------------------------------------- *Con riferimento
alla normativa sul trattamento dei dati personali (Reg. UE 2016/679 -
Regolamento generale sulla protezione dei dati “GDPR”), si precisa che ogni
circostanza inerente alla presente email (il suo contenuto, gli eventuali
allegati, etc.) è un dato la cui conoscenza è riservata al/i solo/i
destinatario/i indicati dallo scrivente. Se il messaggio Le è giunto per
errore, è tenuta/o a cancellarlo, ogni altra operazione è illecita. Le
sarei comunque grato se potesse darmene notizia. This email is intended
only for the person or entity to which it is addressed and may contain
information that is privileged, confidential or otherwise protected from
disclosure. We remind that - as provided by European Regulation 2016/679
“GDPR” - copying, dissemination or use of this e-mail or the information
herein by anyone other than the intended recipient is prohibited. If you
have received this email by mistake, please notify us immediately by
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Please make sure you read the following two resources before posting to this
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