On Fri, Jun 14, 2013 at 2:21 PM, Tom Lane <t...@sss.pgh.pa.us> wrote: > So it's not that we actually need to log the individual hint bit > changes, it's that we need to WAL-log a full page image on the first > update after a checkpoint, so as to recover from torn-page cases. > Which one are we doing?
Wal logging a full page image after a checkpoint wouldn't actually be enough since subsequent hint bits will dirty the page and not wal log anything creating a new torn page risk. FPI are only useful if all the subsequent updates are wal logged. -- greg -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
