postgres.git / summary / log / commit / refs
commit 9a699b705cce3af5e8b57a9c6b4ccfe7ba90c8db
Author: Kevin Grittner <kgrittn@postgresql.org>
Date: Sun Sep 16 17:28:22 2012 +0000
First released in: 9.3.0, 8.3.21, 8.4.14, 9.0.10, 9.1.6, 9.2.1
Fix documentation reference to maximum allowed for autovacuum_freeze_max_age.
The documentation mentioned setting autovacuum_freeze_max_age to
"its maximum allowed value of a little less than two billion".
This led to a post asking about the exact maximum allowed value,
which is precisely two billion, not "a little less".
Based on question by Radovan Jablonovsky. Backpatch to 8.3.
doc/src/sgml/maintenance.sgml | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/doc/src/sgml/maintenance.sgml b/doc/src/sgml/maintenance.sgml
index ce8f2513ac1..2d6b72aea55 100644
--- a/doc/src/sgml/maintenance.sgml
+++ b/doc/src/sgml/maintenance.sgml
@@ -374,8 +374,8 @@
will take more space, because it must store the commit status for all
transactions back to the <varname>autovacuum_freeze_max_age</> horizon.
The commit status uses two bits per transaction, so if
- <varname>autovacuum_freeze_max_age</> has its maximum allowed value of
- a little less than two billion, <filename>pg_clog</> can be expected to
+ <varname>autovacuum_freeze_max_age</> has its maximum allowed
+ value of two billion, <filename>pg_clog</> can be expected to
grow to about half a gigabyte. If this is trivial compared to your
total database size, setting <varname>autovacuum_freeze_max_age</> to
its maximum allowed value is recommended. Otherwise, set it depending
[parent: 2734af4ea92c]