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Answer by Tom Staab

Performance: BIGINT comparisons are faster using VARCHAR. But the big question is this: How are these columns compared to other columns or values? If, for instance, you frequently use...

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Answer by Rob Farley

Is it going to be beneficial for me to change this 78 million row structure to hold BIGINT instead of VARCHAR I wouldn't bother. Instead, I'd be looking at having a much smaller set of keys for your...

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