Re: Large Scale WindowJoins Questions

[rocuinneagain]

I added extra columns and it did not slow down the operation for me.
Is your data in memory or on disk?

data:([] dt:`s#.z.p+0D00:00:01*til 800000;mmm3:800000?1000.0) 
data:data,'flip (`$"col",/:string til 30)!30#enlist til 800000 
f:`dt; w:(-1000000; 0)+:data[`dt]; 
result: wj[w;f;data;(data;(max;`mmm3);(min;`mmm3))]