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That’s not always the best advice. Consider a table that you know will only have a few rows, but is referenced in one or more FK columns. If I use a 64bit inte
by daigoba66 8y ago
That’s not always the best advice.
Consider a table that you know will only have a few rows, but is referenced in one or more FK columns. If I use a 64bit integer when 32bit (or smaller!) is enough, I’m now using twice as much space for the FK column. If there are millions of rows, plus indexes, that can add up pretty fast.