public function getDiff($table, $key)
{
Logger::info("Now calculating data diff for table `{$table}`");
$diffSequence1 = $this->getOldNewDiff($table, $key);
$diffSequence2 = $this->getChangeDiff($table, $key);
$diffSequence = array_merge($diffSequence1, $diffSequence2);
return $diffSequence;
}