This patch is no longer needed. We can revisit this during 8.4 to see if it is still needed now that we have HOT.
--------------------------------------------------------------------------- ITAGAKI Takahiro wrote: > Here is a patch discussed in > http://archives.postgresql.org/pgsql-hackers/2007-02/msg00010.php > > Concurrent vacuum will save n_dead_tuples value at the beginning. > Stats collector will be subtract the value from n_dead_tuples > instead of setting it to zero. The statistics accuracy of n_dead_tuples > will be better, especially just after finish of a vacuum. > > The behavior in VACUUM FULL is not changed because concurrent updates > are not allowed during VACUUM FULL. > > Comments welcome. > > Regards, > --- > ITAGAKI Takahiro > NTT Open Source Software Center [ Attachment, skipping... ] > > ---------------------------(end of broadcast)--------------------------- > TIP 6: explain analyze is your friend -- Bruce Momjian <[EMAIL PROTECTED]> http://momjian.us EnterpriseDB http://www.enterprisedb.com + If your life is a hard drive, Christ can be your backup. + ---------------------------(end of broadcast)--------------------------- TIP 3: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faq
