26 Feb '14, 2pm

145 RR Data Analytics with Heather Rivers

It’s a good way to think about how you think about the data. I’ve done quite a bit with Cassandra. And typically the way that it stores is it stores, you do have the concept of kind of a record so you can’t pull all of the name and the value off of each value in the record. But the way that it manages it is the atomic level of data is actually a tuple with the key in the value. And then they associate up to their parent and then they tend to build the data, as you said, sort of around those tuples based on what their keys are in the space that they live in. And it gets kind of hairy to really get it but when you get it, then you can start to understand how to optimize to get that data out. And it also allows you to ignore any openings because since it’s column-focused instead of row-focused, you don’t actually have to store nulls or nils, it just allows you to bypass all o...

Full article: http://rubyrogues.com/145-rr-data-analytics-with-heather-...

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