To eliminate variables I might have overlooked, I wrote the "insert into 
... select" into the loader, so it happens in the same process, right after 
the table is built. I get the same result. It's at least an order of 
magnitude slower.

I'm currently on 1.3.171, if that matters.



On Friday, September 13, 2013 5:13:55 AM UTC-7, Brian Craft wrote:
>
>
>
> On Friday, September 13, 2013 4:55:33 AM UTC-7, Noel Grandin wrote:
>>
>>  
>> On 2013-09-13 13:53, Brian Craft wrote:
>>  
>>
>> Could it be java -client vs -server? I'm running the "insert into ... 
>> select" interactively, and I see now that the process has -client. The file 
>> loader I'm starting w/o the -client flag, which I think defaults to 
>> -server. I'll try changing this.
>>
>>  
>> With that performance difference, that would be unlikely. I'm guessing 
>> something else is quite different in the two cases. 
>> Triggers maybe? Or different DB mode?
>> The H2 performance tool may be some help here.
>> http://h2database.com/html/performance.html#built_in_profiler
>>
>
> No triggers. I'm opening the file as "file;LOG=1;CACHE_SIZE=65536" in both 
> cases. Is there some other db mode I should check? 
>

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