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54 lines
1.2 KiB
Plaintext
54 lines
1.2 KiB
Plaintext
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SELECT text_soundex('hello world!');
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CREATE TABLE s (nm text)\g
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insert into s values ('john')\g
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insert into s values ('joan')\g
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insert into s values ('wobbly')\g
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select * from s
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where text_soundex(nm) = text_soundex('john')\g
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select nm from s a, s b
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where text_soundex(a.nm) = text_soundex(b.nm)
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and a.oid <> b.oid\g
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CREATE FUNCTION text_sx_eq(text, text) RETURNS bool AS
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'select text_soundex($1) = text_soundex($2)'
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LANGUAGE 'sql'\g
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CREATE FUNCTION text_sx_lt(text,text) RETURNS bool AS
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'select text_soundex($1) < text_soundex($2)'
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LANGUAGE 'sql'\g
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CREATE FUNCTION text_sx_gt(text,text) RETURNS bool AS
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'select text_soundex($1) > text_soundex($2)'
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LANGUAGE 'sql';
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CREATE FUNCTION text_sx_le(text,text) RETURNS bool AS
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'select text_soundex($1) <= text_soundex($2)'
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LANGUAGE 'sql';
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CREATE FUNCTION text_sx_ge(text,text) RETURNS bool AS
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'select text_soundex($1) >= text_soundex($2)'
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LANGUAGE 'sql';
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CREATE FUNCTION text_sx_ne(text,text) RETURNS bool AS
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'select text_soundex($1) <> text_soundex($2)'
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LANGUAGE 'sql';
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DROP OPERATOR #= (text,text)\g
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CREATE OPERATOR #= (leftarg=text, rightarg=text, procedure=text_sx_eq,
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commutator=text_sx_eq)\g
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SELECT *
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FROM s
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WHERE text_sx_eq(nm,'john')\g
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SELECT *
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from s
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where s.nm #= 'john';
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