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The best thing about root was how it handled data loading. TTree's, with their column based slicing on disk, are such a good idea. Ever since I graduated and mo
by casualscience 2y ago
The best thing about root was how it handled data loading. TTree's, with their column based slicing on disk, are such a good idea. Ever since I graduated and moved into industry, I've been looking for something that works the same way.
- moelf 2y agoApache arrow and parquet all work this way. Even HDF5 in column mode isn't completely bad. TTree is succeeded by RNTuple, which is basically CERN's take on Apache Arrow, they're incredibly similar
- amelius 2y agoIs this a kind of lazy loading?
- dekhn 2y agoI was hosting one of the leads of ROOT at Google and we got to talking about ROOT. I mentioned sstables and columnio and he said "oh, yeah, we've been doing that for years".