Re: Working with big datasets, merging two ordered lists by key

I am still working on the solution, (see gist ) and want to share my current thoughts. The problem is to process over a join on two big datasets (from different sources). Right now I a quite confident as I break the problem into smaller parts, and I am starting

Get a LAZY list of records from a database query ?

Hi, I wonder if its possible to convert this database query (its CLR) into a lazy sequence. The reader loop is wrapped in the opening and closing of the db-connection and reader. When i 'take a few records from the sequence, will then the connection be closed because it's getting out of scope

Re: Need help understanding a lazy sequence function

Hello, I'm trying to understand the lazyness, how they work, how to create them, how to avoid pre-realisation. Can someone point me to which documentation would be helpful, where do I find it ? Frank Am Montag, 10. März 2014 13:16:00 UTC+1 schrieb Asfand Yar Qazi: > > On Monday, 10 March 2014

Re: Working with big datasets, merging two ordered lists by key

out [fa fb])) (> 0 cmp) (recur (rest a) b (conj out [fa nil])) :else (recur a (rest b) (conj out [nil fb])) Am Montag, 10. März 2014 09:26:14 UTC+1 schrieb Frank Behrens: > > Thanks for your suggestions. > a for loop has to do 100.000 * 300.

Re: Working with big datasets, merging two ordered lists by key

t; > :when (= (first i) (first j))] >> > {(first i) (merge (second i) (second j))}) >> > >> > ({:id1 {:age 38, :name Frank'}} {:id3 {:age 18, :name Tim'}}) ;; result >> > from repl >> > >> > >> > >> > Hth >> &

Working with big datasets, merging two ordered lists by key

Hi, i'm investigating if clojure can be used to solve the challenges and problems we have at my day job better than ruby or powershell. A very common use case is validating data from different systems against some criteria. i believe clojure can be our silver bullet, but before that, it seems

Re: Getting started - overcoming my first obstacles

Dear Florian (or anybody), I really like how your post is so beautifully syntax highlighted. How did you do that ? nice day !, Frank (PS this Frank) -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googl