With your help I found the solution. My DB was initially based on a 9.0 server and I had restored it on the 9.1 server. For some reason 9.0 fuzzystrmatch functions (levenstein...) were already present in this DB. So, CREATE EXTENSION fuzzystrmatch did not work. I had to manually remove function 9.0 fuzzystrmatch functions and then CREATE EXTENSION .... worked perfectly and levenstein_less_equal as well. So, it was error from the DB restored from an older version of postgresql. -- View this message in context: http://postgresql.1045698.n5.nabble.com/levenshtein-less-equal-does-not-work-tp5788710p5788729.html Sent from the PostgreSQL - general mailing list archive at Nabble.com. -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
