On 2016年03月09日 23:31, Andres Freund wrote:
Did you enable track_commit_timestamps in the server?That's unrelated, commit ts is about an xid timestamp mapping.
Yes, whether enable track_commit_timestamp or not, I have just done the test again and the result is the same.
Thxs all! Best regards! -- *PostgreSQL DBA hailong.li of Qunar*