1CREATE FUNCTION uri_hash(uri) RETURNS integer 2 IMMUTABLE 3 STRICT 4 LANGUAGE C 5 AS '$libdir/uri'; 6 7CREATE OPERATOR CLASS uri_ops_hash 8 DEFAULT FOR TYPE uri USING hash AS 9 OPERATOR 1 =, 10 FUNCTION 1 uri_hash(uri); 11 12CREATE FUNCTION uri_escape(text, space_to_plus boolean DEFAULT false, normalize_breaks boolean DEFAULT false) RETURNS text 13 IMMUTABLE 14 STRICT 15 LANGUAGE C 16 AS '$libdir/uri'; 17 18CREATE FUNCTION uri_unescape(text, plus_to_space boolean DEFAULT false, break_conversion boolean DEFAULT false) RETURNS text 19 IMMUTABLE 20 STRICT 21 LANGUAGE C 22 AS '$libdir/uri'; 23