I just learned how to search the archives, and I found this well-titled 
resource: 
rdkit.blogspot.com/2017/04/using-custom-fingerprint-in-postgresql.html, which 
may have all the answers I need.  Apologies for the (hopefully) unnecessary 
post.

-Ken

On Fri, Sep 1, 2023, at 12:03 PM, Ken wrote:
> Hello,
>
> Is there a way to query a SQL database (through the cartridge) using a 
> fingerprinting method other than the ones listed below? 
>
> rdkit.morgan_fp_size : the size (in bits) of morgan fingerprints
> rdkit.featmorgan_fp_size : the size (in bits) of featmorgan fingerprints
> rdkit.layered_fp_size : the size (in bits) of layered fingerprints
> rdkit.rdkit_fp_size : the size (in bits) of RDKit fingerprints
> rdkit.torsion_fp_size : the size (in bits) of topological torsion bit 
> vector fingerprints
> rdkit.atompair_fp_size : the size (in bits) of atom pair bit vector 
> fingerprints
> rdkit.avalon_fp_size : the size (in bits) of avalon fingerprints
>
> I am interested in using the "pattern" method right now 
> (rdkit.Chem.rdmolops.PatternFingerprint), but I would be interested in 
> learning about a general method for implementing custom fingerprints in 
> the RDKit cartridge. If such a thing is possible, I would also be 
> interested in using similarity scoring methods other than Tanimoto and 
> Dice at some point.  
>
> Thanks in advance for your help.
> -Ken


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