postgresql/contrib/soundex/soundex.sql
1996-08-18 22:14:33 +00:00

58 lines
1.4 KiB
SQL

--------------- soundex.sql:
CREATE FUNCTION text_soundex(text) RETURNS text
AS '/usr/local/postgres/postgres95/src/funcs/soundex.so' LANGUAGE 'c';
SELECT text_soundex('hello world!');
CREATE TABLE s (nm text)\g
insert into s values ('john')\g
insert into s values ('joan')\g
insert into s values ('wobbly')\g
select * from s
where text_soundex(nm) = text_soundex('john')\g
select nm from s a, s b
where text_soundex(a.nm) = text_soundex(b.nm)
and a.oid <> b.oid\g
CREATE FUNCTION text_sx_eq(text, text) RETURNS bool AS
'select text_soundex($1) = text_soundex($2)'
LANGUAGE 'sql'\g
CREATE FUNCTION text_sx_lt(text,text) RETURNS bool AS
'select text_soundex($1) < text_soundex($2)'
LANGUAGE 'sql'\g
CREATE FUNCTION text_sx_gt(text,text) RETURNS bool AS
'select text_soundex($1) > text_soundex($2)'
LANGUAGE 'sql';
CREATE FUNCTION text_sx_le(text,text) RETURNS bool AS
'select text_soundex($1) <= text_soundex($2)'
LANGUAGE 'sql';
CREATE FUNCTION text_sx_ge(text,text) RETURNS bool AS
'select text_soundex($1) >= text_soundex($2)'
LANGUAGE 'sql';
CREATE FUNCTION text_sx_ne(text,text) RETURNS bool AS
'select text_soundex($1) <> text_soundex($2)'
LANGUAGE 'sql';
DROP OPERATOR #= (text,text)\g
CREATE OPERATOR #= (leftarg=text, rightarg=text, procedure=text_sx_eq,
commutator=text_sx_eq)\g
SELECT *
FROM s
WHERE text_sx_eq(nm,'john')\g
SELECT *
from s
where s.nm #= 'john';