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Matches function fingerprint

If a substructure search is desired, it is wise to use the fingerprint stored in the f p column to reduce the number of structures that must be scanned using the matches function. The following SQL will locate all structures that contain the specified substructure. [Pg.158]

The addition of the contains function allows a quicker comparison of the fingerprint of the desired substructure with the fingerprints stored in the table. The matches function is then used only for structures which have passed this initial test. Since the matches function is slower than the contains function, the overall speed of the search is faster than if the fingerprint comparison were not done. [Pg.158]

See other pages where Matches function fingerprint is mentioned: [Pg.62]    [Pg.119]    [Pg.46]    [Pg.93]    [Pg.98]    [Pg.185]    [Pg.374]    [Pg.159]    [Pg.136]    [Pg.49]    [Pg.195]    [Pg.218]    [Pg.259]    [Pg.181]    [Pg.520]    [Pg.229]    [Pg.328]    [Pg.52]    [Pg.55]    [Pg.49]    [Pg.2225]    [Pg.613]    [Pg.290]    [Pg.96]    [Pg.877]    [Pg.517]    [Pg.460]    [Pg.160]    [Pg.375]    [Pg.226]    [Pg.427]    [Pg.63]    [Pg.643]    [Pg.725]    [Pg.765]    [Pg.5]    [Pg.45]    [Pg.270]    [Pg.133]    [Pg.189]   
See also in sourсe #XX -- [ Pg.158 ]



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