That's only if you read everything, and if none is in ram. With a columnar DB yo... | Hacker News

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		winrid on June 20, 2024 \| parent \| context \| favorite \| on: Lessons Learned from Scaling to Multi-Terabyte Dat... That's only if you read everything, and if none is in ram. With a columnar DB you can just scan the values of the column you need.

riku_iki on June 20, 2024 [–]

Then 3tb of total data volume is irrelevant. What relevant is size of column.

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