1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
|
CREATE EXTENSION fuzzystrmatch;
SELECT soundex('hello world!');
soundex
---------
H464
(1 row)
SELECT soundex('Anne'), soundex('Ann'), difference('Anne', 'Ann');
soundex | soundex | difference
---------+---------+------------
A500 | A500 | 4
(1 row)
SELECT soundex('Anne'), soundex('Andrew'), difference('Anne', 'Andrew');
soundex | soundex | difference
---------+---------+------------
A500 | A536 | 2
(1 row)
SELECT soundex('Anne'), soundex('Margaret'), difference('Anne', 'Margaret');
soundex | soundex | difference
---------+---------+------------
A500 | M626 | 0
(1 row)
SELECT levenshtein('GUMBO', 'GAMBOL');
levenshtein
-------------
2
(1 row)
SELECT levenshtein('GUMBO', 'GAMBOL', 2, 1, 1);
levenshtein
-------------
3
(1 row)
SELECT levenshtein_less_equal('extensive', 'exhaustive', 2);
levenshtein_less_equal
------------------------
3
(1 row)
SELECT levenshtein_less_equal('extensive', 'exhaustive', 4);
levenshtein_less_equal
------------------------
4
(1 row)
SELECT metaphone('GUMBO', 4);
metaphone
-----------
KM
(1 row)
SELECT dmetaphone('gumbo');
dmetaphone
------------
KMP
(1 row)
SELECT dmetaphone_alt('gumbo');
dmetaphone_alt
----------------
KMP
(1 row)
|
