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A comment on CERN Root. Parent comment

Re:CERN Root by casualscience on Saturday June 01, 2024 @03:15PM (#40548328)
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.
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Re:CERN Root by moelf on Saturday June 01, 2024 @05:03PM (#40549049)
Apache 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

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Re:CERN Root by amelius on Saturday June 01, 2024 @06:15PM (#40549530)
Is this a kind of lazy loading?
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Re:CERN Root by dekhn on Saturday June 01, 2024 @07:42PM (#40550093)
I 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".
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