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From Sergey Kozlov <skoz...@gridgain.com>
Subject Re: Breaking change to spatial indexes to migrate to latest H2 version
Date Tue, 14 Aug 2018 08:11:06 GMT
Vladimir

The spatial module is not delivering in AI binaries (and does not provided
in AI maven repo). This the impact will be less than if it happended for
other modules.



On Tue, Aug 14, 2018 at 10:46 AM, Vladimir Ozerov <vozerov@gridgain.com>
wrote:

> Dmitriy,
>
> Spatial indexes is one of our features, packed as separate optional module
> [1]. With proposed changes users of this feature will not be able to
> migrate to 2.7 until they rewrite and recompile their code, because both
> compile-time and run-time compatibility will be broken. Required changes to
> the code are minimal - just change package names.
>
> If there are no concerns, I will merge it to master branch in the nearest
> time.
>
> [1] https://apacheignite-sql.readme.io/docs/geospatial-support
>
> On Thu, Jun 7, 2018 at 4:00 AM Dmitriy Setrakyan <dsetrakyan@apache.org>
> wrote:
>
> > Vladimir,
> >
> > Can you please explain how our users will be affected? What does it mean
> to
> > use "spatial" indexes in Ignite?
> >
> > D.
> >
> > On Wed, Jun 6, 2018 at 12:54 AM, Vladimir Ozerov <vozerov@gridgain.com>
> > wrote:
> >
> > > Igniters,
> > >
> > > New H2 version 1.4.197 [1] was released recently. It contain a lot of
> > > changes (>1000 commits) and some of them are very useful for us. Of
> most
> > > importance is IN clause optimization which is currently one of our SQL
> > pain
> > > points.
> > >
> > > Unfortunately, new version use updated dependency for spatial indexes.
> > > Earlier it was "org.vividsolutions", now it is "org.locationtech". This
> > is
> > > the same product, only package name was changed.
> > >
> > > It means that if we upgrade to newer H2 version all our users of
> spatial
> > > indexes feature will have compilation and/or linkage errors. This is a
> > > breaking change.
> > >
> > > I propose to implement it still in AI 2.7. We still depend on H2
> heavily
> > > and cannot stop updates.
> > >
> > > Any objections?
> > >
> > > Vladimir.
> > >
> > > [1]
> > https://github.com/h2database/h2database/releases/tag/version-1.4.197
> > > [2] https://issues.apache.org/jira/browse/IGNITE-4150
> > >
> >
>



-- 
Sergey Kozlov
GridGain Systems
www.gridgain.com

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