@Test
void testEquals() {

    final TempColumnIdentifier other = new TempColumnIdentifier(DB, SCHEMA, TABLE, COLUMN + "X");
    assertEquals(INSTANCE, INSTANCE);
    assertFalse(INSTANCE.equals(null));
    assertFalse(INSTANCE.equals(1));
    assertNotEquals(INSTANCE, other);
    assertNotEquals(other, INSTANCE);
}