<br /><br /><div class="moz-cite-prefix">On 2016年03月09日 23:31, Andres Freund wrote:<br /></div><blockquote
cite="mid:92E57CB4-CC68-4471-A459-FD96FF78139D@anarazel.de"type="cite"><blockquote style="color: #000000;"
type="cite"><prewrap="">Did you enable track_commit_timestamps in the server?
</pre></blockquote><pre wrap="">That's unrelated, commit ts is about an xid timestamp mapping.</pre></blockquote><br />
Yes,whether enable track_commit_timestamp or not, I have just done the test again and the result is the same.<br
/><br/> Thxs all!<br /><br /> Best regards!<br /><br /><div class="moz-signature">-- <br /><b>PostgreSQL DBA hailong.li
ofQunar</b><br /><br /></div>