text: set enable_seqscan=off;
  
  CREATE TABLE test_varbit (
  	i varbit
  );
  
  INSERT INTO test_varbit VALUES ('001'),('010'),('011'),('100'),('101'),('110');
  
  CREATE INDEX idx_varbit ON test_varbit USING gin (i);
  
  SELECT * FROM test_varbit WHERE i<'100'::varbit ORDER BY i;
  SELECT * FROM test_varbit WHERE i<='100'::varbit ORDER BY i;
  SELECT * FROM test_varbit WHERE i='100'::varbit ORDER BY i;
  SELECT * FROM test_varbit WHERE i>='100'::varbit ORDER BY i;
  SELECT * FROM test_varbit WHERE i>'100'::varbit ORDER BY i;
  