[fprint] Identify FingerPrint in Database

[Pavel Herrmann]

Hi

On Monday 09 of July 2012 22:04:17 Ivanelson Nunes wrote:
> I am saving the fingerprints in a field "blob", then wonder if the only way
> to compare these impressions is retrieving all prints saved in the database
> and then create a vector to check, using the function  "identify_finger"?
> You can check directly from the database using a SELECT?

No, you cant

the comparison does not necessarily work on the same data (as in binary same), 
but rather on some level of similarity. you would need to teach your database 
to recognize which prints are similar to the one you just got, which is 
actually all that fprint does

Pavel