On 5/17/2013 12:39 PM, Liming Hu wrote:
On Fri, May 17, 2013 at 12:06 PM, Josh Berkus <j...@agliodbs.com> wrote:
Can we add Levenshtein-Damerau edit distance since it is used in
spelling checker
instead of levenshtein edit distance?
Patches welcome! You, too, can be a PostgreSQL contributor.
However, you will need to preserve the ability of users to use the old
levenshtien algorithm as well, for backwards-compatibility. Shouldn't
be hard, just add a new function called levenshtiend().
I am working on it, I will make it this weekend project.
I have done that. and put the code at github:
https://github.com/liminghu/fuzzystrmatch
liming@liming-UX31A:~/Downloads/postgresql-9.1.9/contrib/fuzzystrmatch$
sudo cp fuzzystrmatch.so
/usr/lib/postgresql/9.1/lib/fuzzystrmatch.so
liming@liming-UX31A:~/Downloads/postgresql-9.1.9/contrib/fuzzystrmatch$
sudo /etc/init.d/postgresql restart
* Restarting PostgreSQL 9.1 database server
[ OK ]
select dameraulevenshteinnocompatible('cta', 'cat',1,1,1,1);
CREATE EXTENSION fuzzystrmatch;
********** Error **********
ERROR: could not load library
"/usr/lib/postgresql/9.1/lib/fuzzystrmatch.so":
/usr/lib/postgresql/9.1/lib/fuzzystrmatch.so: undefined symbol:
damerau_levenshtein_internal_noncompatible
Any one can help me on this? Thanks.
--
Josh Berkus
PostgreSQL Experts Inc.
http://pgexperts.com
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Liming Hu
cell: (435)-512-4190
Seattle Washington
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