Also, if you can, try loading the data into another DB and running the same 
querry.  This will give you an idea if it is a problem with how you are 
using H2, or if it is just a hard query for most engines to optimize.  
Also, you may get faster results if you use the H2 PageStore engine.

On Thursday, January 19, 2017 at 3:26:21 PM UTC-5, Adam McMahon wrote:
>
> As far as I am aware, the problem with the query optimizer is that it does 
> not use indexs in every situation that one might expect.  But yours seems 
> to be using the index.  So, I don't know what else it could be (but I am no 
> expert at H2).
>
> How long does it take to run the query?  How many rows are there, and what 
> is the general size of the rows (number of columns)?
>
>
>
> On Thursday, January 19, 2017 at 5:47:55 AM UTC-5, Anil Dasari wrote:
>>
>> Hi Adam,
>>
>> I mean query is very slow. Explain plan looks good and it is using index. 
>> I did not compare with other databases. 
>>
>> Thanks.
>>
>

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