Re: [h2] Join slow on Windows XP, but fast on Windows 7

2014-03-25 Thread Noel Grandin
Firstly, are you sure that (a) the machines have similar disk drives? (b) the machines have similar CPU and memory specs? (c) you are running the same version of Java and H2 on all the machines? If all that is true, then you may need to do some profiling to help us identify the problem area:

Re: [h2] Join slow on Windows XP, but fast on Windows 7

2014-03-25 Thread christoff . schmitz
Hi, a, b and c are true. Additionally, I tested the same Join with the Apache Derby Database. Apache Derby does not show that performance difference between Windows XP and Windows 7 (same Test machines and JVMs used). For me, the main difference between both databases is the way data is stored

[h2] Join slow on Windows XP, but fast on Windows 7

2014-03-21 Thread christoff . schmitz
Hi, I have the following problem. My Application uses a H2 database (1.3.171) stored to the hardisk. I am running a full outer join (implemented by RIGHT OUTER, UNION , LEFT OUTER) between of 2 tables (30 columns each, 1.1 million records each). On my Windows 7 Test machine, the join completes