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Update release notes for 9.2.1, 9.1.6, 9.0.10, 8.4.14, 8.3.21.

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Tom Lane 2012-09-19 17:38:47 -04:00
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110
doc/src/sgml/release-8.3.sgml
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@ -1,6 +1,116 @@
<!-- doc/src/sgml/release-8.3.sgml -->
<!-- See header comment in release.sgml about typical markup -->
<sect1 id="release-8-3-21">
<title>Release 8.3.21</title>
<note>
<title>Release Date</title>
<simpara>2012-09-24</simpara>
</note>
<para>
This release contains a variety of fixes from 8.3.20.
For information about new features in the 8.3 major release, see
<xref linkend="release-8-3">.
</para>
<para>
The <productname>PostgreSQL</> community will stop releasing updates
for the 8.3.X release series in February 2013.
Users are encouraged to update to a newer release branch soon.
</para>
<sect2>
<title>Migration to Version 8.3.21</title>
<para>
A dump/restore is not required for those running 8.3.X.
</para>
<para>
However, if you are upgrading from a version earlier than 8.3.17,
see the release notes for 8.3.17.
</para>
</sect2>
<sect2>
<title>Changes</title>
<itemizedlist>
<listitem>
<para>
Improve page-splitting decisions in GiST indexes (Alexander Korotkov,
Robert Haas, Tom Lane)
</para>
<para>
Multi-column GiST indexes might suffer unexpected bloat due to this
error.
</para>
</listitem>
<listitem>
<para>
Fix cascading privilege revoke to stop if privileges are still held
(Tom Lane)
</para>
<para>
If we revoke a grant option from some role <replaceable>X</>, but
<replaceable>X</> still holds that option via a grant from someone
else, we should not recursively revoke the corresponding privilege
from role(s) <replaceable>Y</> that <replaceable>X</> had granted it
to.
</para>
</listitem>
<listitem>
<para>
Fix handling of <literal>SIGFPE</> when PL/Perl is in use (Andres Freund)
</para>
<para>
Perl resets the process's <literal>SIGFPE</> handler to
<literal>SIG_IGN</>, which could result in crashes later on. Restore
the normal Postgres signal handler after initializing PL/Perl.
</para>
</listitem>
<listitem>
<para>
Prevent PL/Perl from crashing if a recursive PL/Perl function is
redefined while being executed (Tom Lane)
</para>
</listitem>
<listitem>
<para>
Work around possible misoptimization in PL/Perl (Tom Lane)
</para>
<para>
Some Linux distributions contain an incorrect version of
<filename>pthread.h</> that results in incorrect compiled code in
PL/Perl, leading to crashes if a PL/Perl function calls another one
that throws an error.
</para>
</listitem>
<listitem>
<para>
Update time zone data files to <application>tzdata</> release 2012f
for DST law changes in Fiji
</para>
</listitem>
</itemizedlist>
</sect2>
</sect1>
<sect1 id="release-8-3-20">
<title>Release 8.3.20</title>

116
doc/src/sgml/release-8.4.sgml
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@ -1,6 +1,122 @@
<!-- doc/src/sgml/release-8.4.sgml -->
<!-- See header comment in release.sgml about typical markup -->
<sect1 id="release-8-4-14">
<title>Release 8.4.14</title>
<note>
<title>Release Date</title>
<simpara>2012-09-24</simpara>
</note>
<para>
This release contains a variety of fixes from 8.4.13.
For information about new features in the 8.4 major release, see
<xref linkend="release-8-4">.
</para>
<sect2>
<title>Migration to Version 8.4.14</title>
<para>
A dump/restore is not required for those running 8.4.X.
</para>
<para>
However, if you are upgrading from a version earlier than 8.4.10,
see the release notes for 8.4.10.
</para>
</sect2>
<sect2>
<title>Changes</title>
<itemizedlist>
<listitem>
<para>
Fix planner's assignment of executor parameters, and fix executor's
rescan logic for CTE plan nodes (Tom Lane)
</para>
<para>
These errors could result in wrong answers from queries that scan the
same <literal>WITH</> subquery multiple times.
</para>
</listitem>
<listitem>
<para>
Improve page-splitting decisions in GiST indexes (Alexander Korotkov,
Robert Haas, Tom Lane)
</para>
<para>
Multi-column GiST indexes might suffer unexpected bloat due to this
error.
</para>
</listitem>
<listitem>
<para>
Fix cascading privilege revoke to stop if privileges are still held
(Tom Lane)
</para>
<para>
If we revoke a grant option from some role <replaceable>X</>, but
<replaceable>X</> still holds that option via a grant from someone
else, we should not recursively revoke the corresponding privilege
from role(s) <replaceable>Y</> that <replaceable>X</> had granted it
to.
</para>
</listitem>
<listitem>
<para>
Fix handling of <literal>SIGFPE</> when PL/Perl is in use (Andres Freund)
</para>
<para>
Perl resets the process's <literal>SIGFPE</> handler to
<literal>SIG_IGN</>, which could result in crashes later on. Restore
the normal Postgres signal handler after initializing PL/Perl.
</para>
</listitem>
<listitem>
<para>
Prevent PL/Perl from crashing if a recursive PL/Perl function is
redefined while being executed (Tom Lane)
</para>
</listitem>
<listitem>
<para>
Work around possible misoptimization in PL/Perl (Tom Lane)
</para>
<para>
Some Linux distributions contain an incorrect version of
<filename>pthread.h</> that results in incorrect compiled code in
PL/Perl, leading to crashes if a PL/Perl function calls another one
that throws an error.
</para>
</listitem>
<listitem>
<para>
Update time zone data files to <application>tzdata</> release 2012f
for DST law changes in Fiji
</para>
</listitem>
</itemizedlist>
</sect2>
</sect1>
<sect1 id="release-8-4-13">
<title>Release 8.4.13</title>

142
doc/src/sgml/release-9.0.sgml
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@ -1,6 +1,148 @@
<!-- doc/src/sgml/release-9.0.sgml -->
<!-- See header comment in release.sgml about typical markup -->
<sect1 id="release-9-0-10">
<title>Release 9.0.10</title>
<note>
<title>Release Date</title>
<simpara>2012-09-24</simpara>
</note>
<para>
This release contains a variety of fixes from 9.0.9.
For information about new features in the 9.0 major release, see
<xref linkend="release-9-0">.
</para>
<sect2>
<title>Migration to Version 9.0.10</title>
<para>
A dump/restore is not required for those running 9.0.X.
</para>
<para>
However, if you are upgrading from a version earlier than 9.0.6,
see the release notes for 9.0.6.
</para>
</sect2>
<sect2>
<title>Changes</title>
<itemizedlist>
<listitem>
<para>
Fix planner's assignment of executor parameters, and fix executor's
rescan logic for CTE plan nodes (Tom Lane)
</para>
<para>
These errors could result in wrong answers from queries that scan the
same <literal>WITH</> subquery multiple times.
</para>
</listitem>
<listitem>
<para>
Improve page-splitting decisions in GiST indexes (Alexander Korotkov,
Robert Haas, Tom Lane)
</para>
<para>
Multi-column GiST indexes might suffer unexpected bloat due to this
error.
</para>
</listitem>
<listitem>
<para>
Fix cascading privilege revoke to stop if privileges are still held
(Tom Lane)
</para>
<para>
If we revoke a grant option from some role <replaceable>X</>, but
<replaceable>X</> still holds that option via a grant from someone
else, we should not recursively revoke the corresponding privilege
from role(s) <replaceable>Y</> that <replaceable>X</> had granted it
to.
</para>
</listitem>
<listitem>
<para>
Improve error messages for Hot Standby misconfiguration errors
(Gurjeet Singh)
</para>
</listitem>
<listitem>
<para>
Fix handling of <literal>SIGFPE</> when PL/Perl is in use (Andres Freund)
</para>
<para>
Perl resets the process's <literal>SIGFPE</> handler to
<literal>SIG_IGN</>, which could result in crashes later on. Restore
the normal Postgres signal handler after initializing PL/Perl.
</para>
</listitem>
<listitem>
<para>
Prevent PL/Perl from crashing if a recursive PL/Perl function is
redefined while being executed (Tom Lane)
</para>
</listitem>
<listitem>
<para>
Work around possible misoptimization in PL/Perl (Tom Lane)
</para>
<para>
Some Linux distributions contain an incorrect version of
<filename>pthread.h</> that results in incorrect compiled code in
PL/Perl, leading to crashes if a PL/Perl function calls another one
that throws an error.
</para>
</listitem>
<listitem>
<para>
Fix <application>pg_upgrade</>'s handling of line endings on Windows
(Andrew Dunstan)
</para>
<para>
Previously, <application>pg_upgrade</> might add or remove carriage
returns in places such as function bodies.
</para>
</listitem>
<listitem>
<para>
On Windows, make <application>pg_upgrade</> use backslash path
separators in the scripts it emits (Andrew Dunstan)
</para>
</listitem>
<listitem>
<para>
Update time zone data files to <application>tzdata</> release 2012f
for DST law changes in Fiji
</para>
</listitem>
</itemizedlist>
</sect2>
</sect1>
<sect1 id="release-9-0-9">
<title>Release 9.0.9</title>

255
doc/src/sgml/release-9.1.sgml
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@ -1,6 +1,261 @@
<!-- doc/src/sgml/release-9.1.sgml -->
<!-- See header comment in release.sgml about typical markup -->
<sect1 id="release-9-1-6">
<title>Release 9.1.6</title>
<note>
<title>Release Date</title>
<simpara>2012-09-24</simpara>
</note>
<para>
This release contains a variety of fixes from 9.1.5.
For information about new features in the 9.1 major release, see
<xref linkend="release-9-1">.
</para>
<sect2>
<title>Migration to Version 9.1.6</title>
<para>
A dump/restore is not required for those running 9.1.X.
</para>
<para>
However, you may need to perform <command>REINDEX</> operations to
recover from the effects of the data corruption bug described in the
first changelog item below.
</para>
<para>
Also, if you are upgrading from a version earlier than 9.1.4,
see the release notes for 9.1.4.
</para>
</sect2>
<sect2>
<title>Changes</title>
<itemizedlist>
<listitem>
<para>
Fix persistence marking of shared buffers during WAL replay
(Jeff Davis)
</para>
<para>
This mistake can result in buffers not being written out during
checkpoints, resulting in data corruption if the server later crashes
without ever having written those buffers. Corruption can occur on
any server following crash recovery, but it is significantly more
likely to occur on standby slave servers since those perform much
more WAL replay. There is a low probability of corruption of btree
and GIN indexes. There is a much higher probability of corruption of
table <quote>visibility maps</>. Fortunately, visibility maps are
non-critical data in 9.1, so the worst consequence of such corruption
in 9.1 installations is transient inefficiency of vacuuming. Table
data proper cannot be corrupted by this bug.
</para>
<para>
While no index corruption due to this bug is known to have occurred
in the field, as a precautionary measure it is recommended that
production installations <command>REINDEX</> all btree and GIN
indexes at a convenient time after upgrading to 9.1.6.
</para>
<para>
Also, if you intend to do an in-place upgrade to 9.2.X, before doing
so it is recommended to perform a <command>VACUUM</> of all tables
while having <link
linkend="guc-vacuum-freeze-table-age"><varname>vacuum_freeze_table_age</></link>
set to zero. This will ensure that any lingering wrong data in the
visibility maps is corrected before 9.2.X can depend on it. <link
linkend="guc-vacuum-cost-delay"><varname>vacuum_cost_delay</></link>
can be adjusted to reduce the performance impact of vacuuming, while
causing it to take longer to finish.
</para>
</listitem>
<listitem>
<para>
Fix planner's assignment of executor parameters, and fix executor's
rescan logic for CTE plan nodes (Tom Lane)
</para>
<para>
These errors could result in wrong answers from queries that scan the
same <literal>WITH</> subquery multiple times.
</para>
</listitem>
<listitem>
<para>
Fix misbehavior when <link
linkend="guc-default-transaction-isolation"><varname>default_transaction_isolation</></link>
is set to <literal>serializable</> (Kevin Grittner, Tom Lane, Heikki
Linnakangas)
</para>
<para>
Symptoms include crashes at process start on Windows, and crashes in
hot standby operation.
</para>
</listitem>
<listitem>
<para>
Improve selectivity estimation for text search queries involving
prefixes, i.e. <replaceable>word</><literal>:*</> patterns (Tom Lane)
</para>
<para>
</para>
</listitem>
<listitem>
<para>
Improve page-splitting decisions in GiST indexes (Alexander Korotkov,
Robert Haas, Tom Lane)
</para>
<para>
Multi-column GiST indexes might suffer unexpected bloat due to this
error.
</para>
</listitem>
<listitem>
<para>
Fix cascading privilege revoke to stop if privileges are still held
(Tom Lane)
</para>
<para>
If we revoke a grant option from some role <replaceable>X</>, but
<replaceable>X</> still holds that option via a grant from someone
else, we should not recursively revoke the corresponding privilege
from role(s) <replaceable>Y</> that <replaceable>X</> had granted it
to.
</para>
</listitem>
<listitem>
<para>
Disallow extensions from containing the schema they are assigned to
(Thom Brown)
</para>
<para>
This situation creates circular dependencies that confuse
<application>pg_dump</> and probably other things. It's confusing
for humans too, so disallow it.
</para>
</listitem>
<listitem>
<para>
Improve error messages for Hot Standby misconfiguration errors
(Gurjeet Singh)
</para>
</listitem>
<listitem>
<para>
Make <application>configure</> probe for <function>mbstowcs_l</> (Tom
Lane)
</para>
<para>
This fixes build failures on some versions of AIX.
</para>
</listitem>
<listitem>
<para>
Fix handling of <literal>SIGFPE</> when PL/Perl is in use (Andres Freund)
</para>
<para>
Perl resets the process's <literal>SIGFPE</> handler to
<literal>SIG_IGN</>, which could result in crashes later on. Restore
the normal Postgres signal handler after initializing PL/Perl.
</para>
</listitem>
<listitem>
<para>
Prevent PL/Perl from crashing if a recursive PL/Perl function is
redefined while being executed (Tom Lane)
</para>
</listitem>
<listitem>
<para>
Work around possible misoptimization in PL/Perl (Tom Lane)
</para>
<para>
Some Linux distributions contain an incorrect version of
<filename>pthread.h</> that results in incorrect compiled code in
PL/Perl, leading to crashes if a PL/Perl function calls another one
that throws an error.
</para>
</listitem>
<listitem>
<para>
Fix bugs in <filename>contrib/pg_trgm</>'s <literal>LIKE</> pattern
analysis code (Fujii Masao)
</para>
<para>
<literal>LIKE</> queries using a trigram index could produce wrong
results if the pattern contained <literal>LIKE</> escape characters.
</para>
</listitem>
<listitem>
<para>
Fix <application>pg_upgrade</>'s handling of line endings on Windows
(Andrew Dunstan)
</para>
<para>
Previously, <application>pg_upgrade</> might add or remove carriage
returns in places such as function bodies.
</para>
</listitem>
<listitem>
<para>
On Windows, make <application>pg_upgrade</> use backslash path
separators in the scripts it emits (Andrew Dunstan)
</para>
</listitem>
<listitem>
<para>
Remove unnecessary dependency on <application>pg_config</> from
<application>pg_upgrade</> (Peter Eisentraut)
</para>
</listitem>
<listitem>
<para>
Update time zone data files to <application>tzdata</> release 2012f
for DST law changes in Fiji
</para>
</listitem>
</itemizedlist>
</sect2>
</sect1>
<sect1 id="release-9-1-5">
<title>Release 9.1.5</title>

171
doc/src/sgml/release-9.2.sgml
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@ -1,6 +1,177 @@
<!-- doc/src/sgml/release-9.2.sgml -->
<!-- See header comment in release.sgml about typical markup -->
<sect1 id="release-9-2-1">
<title>Release 9.2.1</title>
<note>
<title>Release Date</title>
<simpara>2012-09-24</simpara>
</note>
<para>
This release contains a variety of fixes from 9.2.0.
For information about new features in the 9.2 major release, see
<xref linkend="release-9-2">.
</para>
<sect2>
<title>Migration to Version 9.2.1</title>
<para>
A dump/restore is not required for those running 9.2.X.
</para>
<para>
However, you may need to perform <command>REINDEX</> and/or
<command>VACUUM</> operations to recover from the effects of the data
corruption bug described in the first changelog item below.
</para>
</sect2>
<sect2>
<title>Changes</title>
<itemizedlist>
<listitem>
<para>
Fix persistence marking of shared buffers during WAL replay
(Jeff Davis)
</para>
<para>
This mistake can result in buffers not being written out during
checkpoints, resulting in data corruption if the server later crashes
without ever having written those buffers. Corruption can occur on
any server following crash recovery, but it is significantly more
likely to occur on standby slave servers since those perform much
more WAL replay. There is a low probability of corruption of btree
and GIN indexes. There is a much higher probability of corruption
of table <quote>visibility maps</>, which might lead to wrong answers
from index-only scans. Table data proper cannot be corrupted by this
bug.
</para>
<para>
While no index corruption due to this bug is known to have occurred
in the field, as a precautionary measure it is recommended that
production installations <command>REINDEX</> all btree and GIN
indexes at a convenient time after upgrading to 9.2.1.
</para>
<para>
Also, it is recommended to perform a <command>VACUUM</> of all tables
while having <link
linkend="guc-vacuum-freeze-table-age"><varname>vacuum_freeze_table_age</></link>
set to zero. This will fix any incorrect visibility map data. <link
linkend="guc-vacuum-cost-delay"><varname>vacuum_cost_delay</></link>
can be adjusted to reduce the performance impact of vacuuming, while
causing it to take longer to finish.
</para>
</listitem>
<listitem>
<para>
Fix possible incorrect sorting of output from queries involving
<literal>WHERE <replaceable>indexed_column</> IN
(<replaceable>list_of_values</>)</literal> (Tom Lane)
</para>
</listitem>
<listitem>
<para>
Fix planner failure for queries involving <literal>GROUP BY</>
expressions along with window functions and aggregates (Tom Lane)
</para>
</listitem>
<listitem>
<para>
Fix planner's assignment of executor parameters (Tom Lane)
</para>
<para>
This error could result in wrong answers from queries that scan the
same <literal>WITH</> subquery multiple times.
</para>
</listitem>
<listitem>
<para>
Improve planner's handling of join conditions in index scans (Tom Lane)
</para>
</listitem>
<listitem>
<para>
Improve selectivity estimation for text search queries involving
prefixes, i.e. <replaceable>word</><literal>:*</> patterns (Tom Lane)
</para>
<para>
</para>
</listitem>
<listitem>
<para>
Fix delayed recognition of permissions changes (Tom Lane)
</para>
<para>
A command that needed no locks other than ones its transaction already
had might fail to notice a concurrent <command>GRANT</> or
<command>REVOKE</> that committed since the start of its transaction.
</para>
</listitem>
<listitem>
<para>
Fix <command>ANALYZE</> to not fail when a column is a domain over an
array type (Tom Lane)
</para>
</listitem>
<listitem>
<para>
Prevent PL/Perl from crashing if a recursive PL/Perl function is
redefined while being executed (Tom Lane)
</para>
</listitem>
<listitem>
<para>
Work around possible misoptimization in PL/Perl (Tom Lane)
</para>
<para>
Some Linux distributions contain an incorrect version of
<filename>pthread.h</> that results in incorrect compiled code in
PL/Perl, leading to crashes if a PL/Perl function calls another one
that throws an error.
</para>
</listitem>
<listitem>
<para>
Remove unnecessary dependency on <application>pg_config</> from
<application>pg_upgrade</> (Peter Eisentraut)
</para>
</listitem>
<listitem>
<para>
Update time zone data files to <application>tzdata</> release 2012f
for DST law changes in Fiji
</para>
</listitem>
</itemizedlist>
</sect2>
</sect1>
<sect1 id="release-9-2">
<title>Release 9.2</title>