On Wed, May 29, 2013 at 10:42 AM, Andres Freund <and...@2ndquadrant.com> wrote: > FWIW, posix' description about posix_fallocate() doesn't actually say > *anything* about reading. The guarantee it makes is: > "If posix_fallocate() returns successfully, subsequent writes to the > specified file data shall not fail due to the lack of free space on the > file system storage media.". > > http://pubs.opengroup.org/onlinepubs/009696799/functions/posix_fallocate.html > > So we don't even know whether we can read. I think that means we need to > zero the file anyway...
Surely this is undue pessimism. -- 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
