Yeah, you're right. Call it slapping an index on the column holding actual data. My bad. (The reason that primary keys tend to be auto-indexed is simple: to ve

Yeah, you're right. Call it slapping an index on the column holding actual data. My bad. (The reason that primary keys tend to be auto-indexed is simple: to verify uniqueness, you need to check whether the primary key of the record being inserted is already in any record. Doing this without indices would be painfully slow.)