diff --git a/doc/src/sgml/release-9.3.sgml b/doc/src/sgml/release-9.3.sgml index 938bb39dc2..c72ac85a8f 100644 --- a/doc/src/sgml/release-9.3.sgml +++ b/doc/src/sgml/release-9.3.sgml @@ -53,8 +53,7 @@ Branch: REL8_4_STABLE [8a7f4466a] 2013-11-27 13:40:05 +0200 Fix VACUUM's tests to see whether it can - update relfrozenxid (Andres Freund, Sergey Burladyn, - Jeff Janes) + update relfrozenxid (Andres Freund) @@ -129,12 +128,12 @@ Branch: REL9_0_STABLE [b4f697f8e] 2013-11-22 14:49:07 +0200 Fix initialization of pg_clog and pg_subtrans - during hot standby startup (Andres Freund) + during hot standby startup (Andres Freund, Heikki Linnakangas) This bug can cause data loss on standby servers at the moment they - start to accept read-only queries, by marking committed transactions + start to accept hot-standby queries, by marking committed transactions as uncommitted. The likelihood of such corruption is small unless, at the time of standby startup, the primary server has executed many updating transactions since its last checkpoint. Symptoms include @@ -152,20 +151,6 @@ Branch: REL9_0_STABLE [b4f697f8e] 2013-11-22 14:49:07 +0200 - - - - - Fix bugs in setting the visibility-map bit for an empty page (Andres - Freund) - - - + + + + Ensure an anti-wraparound VACUUM counts a page as scanned + when it's only verified that no tuples need freezing (Sergey + Burladyan, Jeff Janes) + + + + This bug could result in failing to + advance relfrozenxid, so that the table would still be + thought to need another anti-wraparound vacuum. In the worst case the + database might even shut down to prevent wraparound. + + + + + + + + Fix full-table-vacuum request mechanism for MultiXactIds (Andres Freund) + + + + This bug could result in large amounts of useless autovacuum activity.