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How is this any different from the old OLAP cubes like IRL / Express? The cube is basically an array in memory and super fast, the dashboards based on Group By as well. I was an Express consultant at Oracle, great to see old concepts come back to life if it’s what I think it is.

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Indeed, OLAP cubes keep finding new life. The critical difference here is that there isn't a heavy query engine (just a Parquet reader) and a few http requests to pull from the cube. So it's light on the backend and light on the frontend.

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