Ok, I found the source of performance loss:
https://github.com/nicolas-f/h2database/blob/svnmaster/h2/src/main/org/h2/index/IndexCursor.java#L180

Why Envelope for index query must be merged together ? The result of this 
is a query where envelope always grows. I don't understand why it's done.

Thanks for support.

Regards,

-Nicolas Fortin
GIS Workshop
IRSTV FR CNRS 2488

Le mercredi 10 juillet 2013 08:54:36 UTC+2, Nicolas Fortin (OrbisGIS) a 
écrit :
>
> Hi Thomas,
>
> Ok nice, way better than a random test case. I have performance issues 
> with the spatial index, maybe my fix introduce processing overhead. I will 
> try to use your profiler, or the IntellliJ one..
>
> Regards,
> -Nicolas Fortin
> GIS Workshop
> IRSTV FR CNRS 2488
>
> Le lundi 8 juillet 2013 20:35:58 UTC+2, Thomas Mueller a écrit :
>>
>> Hi,
>>
>> By the way, I now have a reproducible test case for the bug with the 
>> MVRTreeMap (the one you fixed in your version).
>>
>> Regards,
>> Thomas
>>  
>

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