text: set enable_seqscan=off;
  
  CREATE TABLE test_time (
  	i time
  );
  
  INSERT INTO test_time VALUES
  	( '03:55:08' ),
  	( '04:55:08' ),
  	( '05:55:08' ),
  	( '08:55:08' ),
  	( '09:55:08' ),
  	( '10:55:08' )
  ;
  
  CREATE INDEX idx_time ON test_time USING rum (i);
  
  SELECT * FROM test_time WHERE i<'08:55:08'::time ORDER BY i;
  SELECT * FROM test_time WHERE i<='08:55:08'::time ORDER BY i;
  SELECT * FROM test_time WHERE i='08:55:08'::time ORDER BY i;
  SELECT * FROM test_time WHERE i>='08:55:08'::time ORDER BY i;
  SELECT * FROM test_time WHERE i>'08:55:08'::time ORDER BY i;
  