[google-appengine] Re: Merge-Join Performance?

Also does it use the keyword histogram to optimize the set- intersection performance(AND queries) in merge-join? Regards, Jai On Sep 1, 12:07 pm, Devel63 wrote: > I'm seeing very slow times on some merge-join (zig zag) queries, and > just want to confirm that App Engine is smart about these thi

[google-appengine] Re: Merge-Join Performance?

There is a video about building scalable apps by Brett Slatkin on http://code.google.com/io At the end of the video it is hinted (I believe - I could be wrong) that the order of your filters matters, so that means that you should choose key with the highest entropy first (my terminology might be in

[google-appengine] Re: Merge-Join Performance?

I've watched this video, so I watched again. At first he says he thinks filter order might matter, but then corrects himself based on input from the author of the code to say that filter order has a very small effect. On Sep 2, 5:52 am, Paul Kinlan wrote: > There is a video about building scala

[google-appengine] Re: Merge-Join Performance?

I think the app engine engineers should write a detailed book about app engine, or is there a good book about app engine's details on the market? Jaap On Thu, Sep 3, 2009 at 6:29 PM, Devel63 wrote: > > I've watched this video, so I watched again. At first he says he > thinks filter order might

[google-appengine] Re: Merge-join performance

Hi Anh, On Sun, Oct 25, 2009 at 5:37 PM, Anh Hai Trinh wrote: > > In this talk BuildingScalableComplexApps.html>, Brett said merge-join scales with > number of filters and size of result set. Did that mean *linearly*, > esp. with respect to the