That is a good point. However as soon as the indexes are not entirely held in memory you get a performance dropoff. And the relational database itself already is a performance decrease over a straight hash.

TANSTAAFL. Pick the trade-off which is most appropriate for what you're doing.

In reply to Re^4: two hashes occupying the same space by tilly
in thread two hashes occupying the same space by jfroebe

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