Indexing primitive types

[Valentin Kulichenko]

Igniters (especially Sergi),

What happens if I use Java primitives like Doubles as values? Are they
indexed? I just created a simple example which loads some data and executes
this query: 'select max(_val) from Double'. Indexes are not created and the
speed of the query is the same as the speed of full cache iteration.

I can't find any configuration properties to tweak this behavior. Also I
see this in GridQueryProcessor.processAnnotationsInClass() method:

if (U.isJdk(cls))
    return;

So it looks like all JDK classes are simply ignored. Is this on purpose?

I think primitives should be indexed by default if they are provided in
CacheConfiguration.setIndexedTypes().

--
Val

[Sergi]

Current workaround is to create separate class with single annotated
primitive field.

Created issue https://issues.apache.org/jira/browse/IGNITE-930
Will fix it soon.

Sergi

2015-05-21 4:25 GMT+03:00 Valentin Kulichenko <[hidden email]
>:

> Igniters (especially Sergi),
>
> What happens if I use Java primitives like Doubles as values? Are they
> indexed? I just created a simple example which loads some data and executes
> this query: 'select max(_val) from Double'. Indexes are not created and the
> speed of the query is the same as the speed of full cache iteration.
>
> I can't find any configuration properties to tweak this behavior. Also I
> see this in GridQueryProcessor.processAnnotationsInClass() method:
>
> if (U.isJdk(cls))
>     return;
>
> So it looks like all JDK classes are simply ignored. Is this on purpose?
>
> I think primitives should be indexed by default if they are provided in
> CacheConfiguration.setIndexedTypes().
>
> --
> Val
>

[dsetrakyan]

On Wed, May 20, 2015 at 11:47 PM, Sergi Vladykin <[hidden email]>
wrote:

> Current workaround is to create separate class with single annotated
> primitive field.
>
> Created issue https://issues.apache.org/jira/browse/IGNITE-930
> Will fix it soon.
>

Thanks Sergi!

I also agree that this should be fixed.  Many performance tests are done
with primitive keys and values, and last thing we want is to have poor
performance due to counter-intuitive configuration. I this can be done
quickly enough, I would even include this fix into 1.1 and resubmit the
vote.

D.

>
> Sergi
>
> 2015-05-21 4:25 GMT+03:00 Valentin Kulichenko <
> [hidden email]
> >:
>
> > Igniters (especially Sergi),
> >
> > What happens if I use Java primitives like Doubles as values? Are they
> > indexed? I just created a simple example which loads some data and
> executes
> > this query: 'select max(_val) from Double'. Indexes are not created and
> the
> > speed of the query is the same as the speed of full cache iteration.
> >
> > I can't find any configuration properties to tweak this behavior. Also I
> > see this in GridQueryProcessor.processAnnotationsInClass() method:
> >
> > if (U.isJdk(cls))
> >     return;
> >
> > So it looks like all JDK classes are simply ignored. Is this on purpose?
> >
> > I think primitives should be indexed by default if they are provided in
> > CacheConfiguration.setIndexedTypes().
> >
> > --
> > Val
> >
>