Обсуждение: pgsql: Document that BBU's do not allow partial page writes to be safel

Document that BBU's do not allow partial page writes to be safely turned
off unless they guarantee that all writes to the BBU arrive in 8kB chunks.

Per discussion with Greg Smith

Branch
------
master

Details
-------
http://git.postgresql.org/gitweb?p=postgresql.git;a=commitdiff;h=7a1ca8977fd109a86b540444f71f24bd2f38ea43

Modified Files
--------------
doc/src/sgml/wal.sgml |   10 ++++++----
1 files changed, 6 insertions(+), 4 deletions(-)