@@ -53,8 +53,7 @@ Branch: REL8_4_STABLE [8a7f4466a] 2013-11-27 13:40:05 +0200
5353 <listitem>
5454 <para>
5555 Fix <command>VACUUM</>'s tests to see whether it can
56- update <structfield>relfrozenxid</> (Andres Freund, Sergey Burladyn,
57- Jeff Janes)
56+ update <structfield>relfrozenxid</> (Andres Freund)
5857 </para>
5958
6059 <para>
@@ -129,12 +128,12 @@ Branch: REL9_0_STABLE [b4f697f8e] 2013-11-22 14:49:07 +0200
129128 <listitem>
130129 <para>
131130 Fix initialization of <filename>pg_clog</> and <filename>pg_subtrans</>
132- during hot standby startup (Andres Freund)
131+ during hot standby startup (Andres Freund, Heikki Linnakangas )
133132 </para>
134133
135134 <para>
136135 This bug can cause data loss on standby servers at the moment they
137- start to accept read-only queries, by marking committed transactions
136+ start to accept hot-standby queries, by marking committed transactions
138137 as uncommitted. The likelihood of such corruption is small unless, at
139138 the time of standby startup, the primary server has executed many
140139 updating transactions since its last checkpoint. Symptoms include
@@ -152,20 +151,6 @@ Branch: REL9_0_STABLE [b4f697f8e] 2013-11-22 14:49:07 +0200
152151 </para>
153152 </listitem>
154153
155- <!--
156- Author: Heikki Linnakangas <heikki.linnakangas@iki.fi>
157- Branch: master [83eb54001] 2013-10-23 14:24:37 +0300
158- Branch: REL9_3_STABLE [f90d7426e] 2013-10-23 14:25:43 +0300
159- Branch: REL9_2_STABLE [4da24f12e] 2013-10-23 14:25:50 +0300
160- -->
161-
162- <listitem>
163- <para>
164- Fix bugs in setting the visibility-map bit for an empty page (Andres
165- Freund)
166- </para>
167- </listitem>
168-
169154<!--
170155Author: Alvaro Herrera <alvherre@alvh.no-ip.org>
171156Branch: master [1ce150b7b] 2013-11-29 21:47:21 -0300
@@ -174,8 +159,15 @@ Branch: REL9_3_STABLE [663d2e485] 2013-11-29 21:48:18 -0300
174159
175160 <listitem>
176161 <para>
177- Fix multiple bugs in update chain traversal (Andres
178- Freund, Álvaro Herrera)
162+ Fix multiple bugs in update chain traversal (Andres Freund,
163+ Álvaro Herrera)
164+ </para>
165+
166+ <para>
167+ These bugs could result in incorrect behavior, such as locking or even
168+ updating the wrong row, in the presence of concurrent updates.
169+ Spurious <quote>unable to fetch updated version of tuple</> errors
170+ were also possible.
179171 </para>
180172 </listitem>
181173
@@ -225,13 +217,50 @@ Branch: REL9_0_STABLE [6d0b8cd2f] 2013-11-29 22:02:15 -0300
225217
226218 <listitem>
227219 <para>
228- Truncate <filename>pg_multixact</> contents during crash recovery
220+ Truncate <filename>pg_multixact</> contents during WAL replay
229221 (Andres Freund)
230222 </para>
231223
232224 <para>
233- This avoids ever-increasing disk space consumption in hot standby
234- mode.
225+ This avoids ever-increasing disk space consumption in standby servers.
226+ </para>
227+ </listitem>
228+
229+ <!--
230+ Author: Heikki Linnakangas <heikki.linnakangas@iki.fi>
231+ Branch: master [4c697d8f4] 2013-11-18 09:51:09 +0200
232+ Branch: REL9_3_STABLE [ea2bb1b47] 2013-11-18 10:16:31 +0200
233+ Branch: REL9_2_STABLE [3379263b6] 2013-11-18 10:12:22 +0200
234+ -->
235+
236+ <listitem>
237+ <para>
238+ Ensure an anti-wraparound <command>VACUUM</> counts a page as scanned
239+ when it's only verified that no tuples need freezing (Sergey
240+ Burladyan, Jeff Janes)
241+ </para>
242+
243+ <para>
244+ This bug could result in failing to
245+ advance <structfield>relfrozenxid</>, so that the table would still be
246+ thought to need another anti-wraparound vacuum. In the worst case the
247+ database might even shut down to prevent wraparound.
248+ </para>
249+ </listitem>
250+
251+ <!--
252+ Author: Alvaro Herrera <alvherre@alvh.no-ip.org>
253+ Branch: master [f54106f77] 2013-11-29 21:47:13 -0300
254+ Branch: REL9_3_STABLE [f5f92bdc4] 2013-11-29 21:48:11 -0300
255+ -->
256+
257+ <listitem>
258+ <para>
259+ Fix full-table-vacuum request mechanism for MultiXactIds (Andres Freund)
260+ </para>
261+
262+ <para>
263+ This bug could result in large amounts of useless autovacuum activity.
235264 </para>
236265 </listitem>
237266
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