20,000 rows of 3,000 bits is only about 7 megabytes. Another idea might be a bit array in memory that you could search by and-ing with bit masks. PDL might make fast manipulations easier.

In reply to Re: Does Search::InvertedIndex module live up to billing? by tall_man
in thread Does Search::InvertedIndex module live up to billing? by punch_card_don

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