<div style="line-height:1.7;color:#000000;font-size:14px;font-family:arial">Persistent and acid-state are both 'No SQL' ?  I guess there is only groundhog?<br><div style="line-height:1.7;color:#000000;font-size:14px;font-family:arial"><br></div></div><br><br><span title="neteasefooter"><span id="netease_mail_footer"></span></span>