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BEGIN;
/*
Domain definition
*/
CREATE DOMAIN varchar_ci AS varchar(255) NOT NULL DEFAULT ''::character varying;
/*
Operation Functions
*/
CREATE FUNCTION _varchar_ci_equal(varchar_ci, varchar_ci) RETURNS boolean AS 'SELECT LOWER($1) = LOWER($2)' LANGUAGE SQL STRICT;
CREATE FUNCTION _varchar_ci_not_equal(varchar_ci, varchar_ci) RETURNS boolean AS 'SELECT LOWER($1) != LOWER($2)' LANGUAGE SQL STRICT;
CREATE FUNCTION _varchar_ci_less_than(varchar_ci, varchar_ci) RETURNS boolean AS 'SELECT LOWER($1) < LOWER($2)' LANGUAGE SQL STRICT;
CREATE FUNCTION _varchar_ci_less_equal(varchar_ci, varchar_ci) RETURNS boolean AS 'SELECT LOWER($1) <= LOWER($2)' LANGUAGE SQL STRICT;
CREATE FUNCTION _varchar_ci_greater_than(varchar_ci, varchar_ci) RETURNS boolean AS 'SELECT LOWER($1) > LOWER($2)' LANGUAGE SQL STRICT;
CREATE FUNCTION _varchar_ci_greater_equals(varchar_ci, varchar_ci) RETURNS boolean AS 'SELECT LOWER($1) >= LOWER($2)' LANGUAGE SQL STRICT;
/*
Operators
*/
CREATE OPERATOR <(
PROCEDURE = _varchar_ci_less_than,
LEFTARG = varchar_ci,
RIGHTARG = varchar_ci,
COMMUTATOR = >,
NEGATOR = >=,
RESTRICT = scalarltsel,
JOIN = scalarltjoinsel);
CREATE OPERATOR <=(
PROCEDURE = _varchar_ci_less_equal,
LEFTARG = varchar_ci,
RIGHTARG = varchar_ci,
COMMUTATOR = >=,
NEGATOR = >,
RESTRICT = scalarltsel,
JOIN = scalarltjoinsel);
CREATE OPERATOR >(
PROCEDURE = _varchar_ci_greater_than,
LEFTARG = varchar_ci,
RIGHTARG = varchar_ci,
COMMUTATOR = <,
NEGATOR = <=,
RESTRICT = scalargtsel,
JOIN = scalargtjoinsel);
CREATE OPERATOR >=(
PROCEDURE = _varchar_ci_greater_equals,
LEFTARG = varchar_ci,
RIGHTARG = varchar_ci,
COMMUTATOR = <=,
NEGATOR = <,
RESTRICT = scalargtsel,
JOIN = scalargtjoinsel);
CREATE OPERATOR <>(
PROCEDURE = _varchar_ci_not_equal,
LEFTARG = varchar_ci,
RIGHTARG = varchar_ci,
COMMUTATOR = <>,
NEGATOR = =,
RESTRICT = neqsel,
JOIN = neqjoinsel);
CREATE OPERATOR =(
PROCEDURE = _varchar_ci_equal,
LEFTARG = varchar_ci,
RIGHTARG = varchar_ci,
COMMUTATOR = =,
NEGATOR = <>,
RESTRICT = eqsel,
JOIN = eqjoinsel,
HASHES,
MERGES,
SORT1= <);
COMMIT;
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