soundex.sql.in
上传用户:blenddy
上传日期:2007-01-07
资源大小:6495k
文件大小:1k
- --------------- soundex.sql:
- CREATE FUNCTION text_soundex(text) RETURNS text
- AS '_OBJWD_/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.oidg
- 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';