On Mon, Aug 3, 2015 at 12:03 AM, 高增琦 <pgf...@gmail.com> wrote: > sorry for asking this really old commit. > > http://git.postgresql.org/gitweb/?p=postgresql.git;a=commitdiff;h=7ab9b2f3b79177e501a1ef90ed004cc68788abaf > > I could not understand why "releases the lock on the buffer" is > a problem since vacuum will lock and check the page bit again before > set the vm. Did I missed something?
Hmm, you might be right. It certainly seems safer to do all the work without releasing the buffer lock temporarily in the middle, but maybe the old way wasn't actually broken. -- Robert Haas EnterpriseDB: http://www.enterprisedb.com The Enterprise PostgreSQL Company -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
