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A comment on Cost of a Join. Parent comment
Are they ordered in a way that's different from an integer value that's a foreign key into another table?
The main difference I can perceive is that the ordering is non-obvious to a human, unlike integers, which seems less useful, not more.
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Are they ordered in a way that's different from an integer value that's a foreign key into another table?
The main difference I can perceive is that the ordering is non-obvious to a human, unlike integers, which seems less useful, not more.