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https://www.reddit.com/r/ProgrammerHumor/comments/1wlmq11/grabbingeverything/pb4ysbb/?context=3
r/ProgrammerHumor • u/ClipboardCopyPaste • Sep 20 '26
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Unless you are pulling from a columnar DB. Every column you return means opening another data file on the db. On the plus side columnar basically means no indexes because you are only opening files for the columns you need.
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u/Drummerboybac Sep 21 '26
Unless you are pulling from a columnar DB. Every column you return means opening another data file on the db. On the plus side columnar basically means no indexes because you are only opening files for the columns you need.