I just checked in a small change that switches the postgresql
cartridge over to use the new fingerprinter. The results look good!

Here are timings for searching a pool of 100K ZINC drug-like compounds
using the query sets discussed in the previous email:

Previous fingerprint:
 - Zinc fragments: 50 million pairs, 4413 hits, 3.7 seconds
 - Zinc leads: 50 million pairs, 1875 hits, 1.5 seconds
 - pubchem pieces; 82.3 million pairs, 2.5 million hits, 330 seconds

New fingerprint:
 - Zinc fragments: 50 million pairs, 4413 hits, 0.9 seconds seconds
 - Zinc leads: 50 million pairs, 1875 hits, 0.7 seconds
 - pubchem pieces; 82.3 million pairs, 2.5 million hits, 166 seconds

There's still some work to do in order to get this to work with
SMARTS, but it looks like the general construction of the fingerprint
works.

-greg

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