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Postgres FD Implementation
Commit 734ff84b authored by Tom Lane's avatar Tom Lane
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Further wordsmithing on 9.3.3 release notes. 

No substantive changes, but reorder some items and improve some
descriptions.
parent a5cf6068
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doc/src/sgml/release-9.3.sgml
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......@@ -70,12 +70,12 @@ Branch: REL9_3_STABLE [8e9a16ab8] 2013-12-16 11:29:51 -0300
</para>
<para>
Fixing this required changing the WAL logging format for tuple freezing.
While this is unimportant for standalone servers, in replication
environments it means that <emphasis>standby servers must be upgraded
Fixing this required changing the WAL record format for tuple
freezing. While this is no issue for standalone servers, when using
replication it means that <emphasis>standby servers must be upgraded
to 9.3.3 or later before their masters are</>. An older standby will
be unable to interpret freeze records generated by a newer master,
and will fail with a PANIC message. (In such a case, upgrading the
be unable to interpret freeze records generated by a newer master, and
will fail with a PANIC message. (In such a case, upgrading the
standby should be sufficient to let it resume execution.)
</para>
</listitem>
......@@ -121,16 +121,16 @@ Branch: REL9_3_STABLE [db1014bc4] 2013-12-18 13:31:27 -0300
<para>
If a row was locked by transaction A, and transaction B updated it,
the new version of the row created by B would be locked by A, yet
visible only to B. This case is new in 9.3 since prior versions did
not have any types of row locking that would permit another
transaction to update the row at all. If transaction B then deleted
or key-updated the row, A's lock wouldn't get checked, thus possibly
allowing B to complete when it shouldn't.
visible only to B. If transaction B then again updated the row, A's
lock wouldn't get checked, thus possibly allowing B to complete when
it shouldn't. This case is new in 9.3 since prior versions did not
have any types of row locking that would permit another transaction
to update the row at all.
</para>
<para>
This oversight could allow referential integrity checks to give false
positives (that is, allow deletes that should have been rejected).
positives (for instance, allow deletes that should have been rejected).
Applications using the new commands <literal>SELECT FOR KEY SHARE</>
and <literal>SELECT FOR NO KEY UPDATE</> might also have suffered
locking failures of this kind.
......@@ -148,6 +148,12 @@ Branch: REL9_3_STABLE [c6cd27e36] 2013-12-05 12:21:55 -0300
Prevent <quote>forgetting</> valid row locks when one of several
holders of a row lock aborts (&Aacute;lvaro Herrera)
</para>
<para>
This was yet another mechanism by which a shared row lock could be
lost, thus possibly allowing updates that should have been prevented
by foreign-key constraints.
</para>
</listitem>
<!--
......@@ -171,33 +177,33 @@ Branch: REL9_3_STABLE [2dcc48c35] 2013-12-05 17:47:51 -0300
<!--
Author: Alvaro Herrera <alvherre@alvh.no-ip.org>
Branch: master [638cf09e7] 2014-01-02 18:17:29 -0300
Branch: REL9_3_STABLE [948a3dfbb] 2014-01-02 18:17:29 -0300
Branch: master [a50d97625] 2014-01-02 18:17:07 -0300
Branch: REL9_3_STABLE [03db79459] 2014-01-02 18:17:07 -0300
-->
<listitem>
<para>
Fix handling of 5-digit filenames in <filename>pg_multixact/members</>
(&Aacute;lvaro Herrera)
</para>
<para>
As of 9.3, these names can be more than 4 digits, but the directory
cleanup code ignored such files.
Handle wraparound correctly during extension or truncation
of <filename>pg_multixact/members</>
(Andres Freund, &Aacute;lvaro Herrera)
</para>
</listitem>
<!--
Author: Alvaro Herrera <alvherre@alvh.no-ip.org>
Branch: master [a50d97625] 2014-01-02 18:17:07 -0300
Branch: REL9_3_STABLE [03db79459] 2014-01-02 18:17:07 -0300
Branch: master [638cf09e7] 2014-01-02 18:17:29 -0300
Branch: REL9_3_STABLE [948a3dfbb] 2014-01-02 18:17:29 -0300
-->
<listitem>
<para>
Handle wraparound correctly during extension or truncation
of <filename>pg_multixact/members</>
(Andres Freund, &Aacute;lvaro Herrera)
Fix handling of 5-digit filenames in <filename>pg_multixact/members</>
(&Aacute;lvaro Herrera)
</para>
<para>
As of 9.3, these names can be more than 4 digits, but the directory
cleanup code ignored such files.
</para>
</listitem>
......@@ -246,9 +252,9 @@ Branch: REL9_3_STABLE [762bd379a] 2014-02-14 15:18:34 +0200
</para>
<para>
Previously, not-yet-archived segments could get ignored during replay.
This reverts an undesirable behavioral change in 9.3.0 back to the
way things worked pre-9.3.
Previously, not-yet-archived segments could get ignored during
recovery. This reverts an undesirable behavioral change in 9.3.0
back to the way things worked pre-9.3.
</para>
</listitem>
......@@ -276,7 +282,7 @@ Branch: REL8_4_STABLE [9620fede9] 2014-02-12 14:52:32 -0500
applied far beyond where the end-of-file should have been. This
failure mode does not appear to be a significant risk during crash
recovery, only when initially synchronizing a standby created from a
base backup taken from an actively-changing master.
base backup taken from a quickly-changing master.
</para>
</listitem>
......@@ -298,9 +304,9 @@ Branch: REL9_0_STABLE [5301c8395] 2014-01-08 14:34:21 +0200
<para>
In some cases WAL replay would mistakenly conclude that the database
was already consistent at the start of replay, thus possibly allowing
queries before the database was really consistent. Other symptoms
such as <quote>PANIC: WAL contains references to invalid pages</>
were also possible.
hot-standby queries before the database was really consistent. Other
symptoms such as <quote>PANIC: WAL contains references to invalid
pages</> were also possible.
</para>
</listitem>
......@@ -328,7 +334,7 @@ Branch: REL9_0_STABLE [5d742b9ce] 2014-01-14 17:35:00 -0500
<listitem>
<para>
Fix improper locking of btree index pages while replaying
a <literal>VACUUM</> operation in Hot Standby mode (Andres Freund,
a <literal>VACUUM</> operation in hot-standby mode (Andres Freund,
Heikki Linnakangas, Tom Lane)
</para>
......@@ -350,13 +356,13 @@ Branch: REL8_4_STABLE [67fc33d3a] 2013-12-03 22:53:26 +0200
<listitem>
<para>
Ensure that insertions into non-leaf GIN index pages make a full-page
Ensure that insertions into non-leaf GIN index pages write a full-page
WAL record when appropriate (Heikki Linnakangas)
</para>
<para>
The previous coding risked data corruption in the event of a
torn-page update.
The previous coding risked index corruption in the event of a
partial-page write during a system crash.
</para>
</listitem>
......@@ -385,7 +391,7 @@ Branch: REL9_3_STABLE [e34acac62] 2014-01-16 23:14:57 +0200
<listitem>
<para>
Ensure walreceiver sends Hot Standby feedback messages on time even
Ensure walreceiver sends hot-standby feedback messages on time even
when there is a continuous stream of data (Andres Freund, Amit
Kapila)
</para>
......@@ -461,7 +467,7 @@ Branch: REL8_4_STABLE [01b882fd8] 2014-01-29 20:04:14 -0500
<listitem>
<para>
Fix unsafe references to <varname>errno</> within error messaging
Fix unsafe references to <varname>errno</> within error reporting
logic (Christian Kruse)
</para>
......@@ -505,13 +511,13 @@ Branch: REL8_4_STABLE [7635dae55] 2013-12-05 12:48:44 -0500
<listitem>
<para>
Clear retry flags properly in replacement OpenSSL socket write
Clear retry flags properly in OpenSSL socket write
function (Alexander Kukushkin)
</para>
<para>
This omission resulted in a server lockup after unexpected loss of an
SSL-encrypted connection.
This omission could result in a server lockup after unexpected loss
of an SSL-encrypted connection.
</para>
</listitem>
......@@ -695,7 +701,7 @@ Branch: REL8_4_STABLE [00b77771a] 2014-01-11 13:42:11 -0500
<para>
<command>ANALYZE</> intentionally omits very wide values from its
histogram and most-common-value calculations, but it neglected to do
histogram and most-common-values calculations, but it neglected to do
something sane in the case that all the sampled entries are too wide.
</para>
</listitem>
......@@ -718,8 +724,8 @@ Branch: REL8_4_STABLE [0fb4e3ceb] 2014-01-18 18:50:47 -0500
</para>
<para>
<literal>CREATE TABLE</> works this way, but <literal>ALTER TABLE</>
didn't get the memo.
<literal>CREATE TABLE</> has always allowed such usage,
but <literal>ALTER TABLE</> didn't get the memo.
</para>
</listitem>
......@@ -747,8 +753,8 @@ Branch: REL8_4_STABLE [57ac7d8a7] 2014-01-08 20:18:24 -0500
<listitem>
<para>
Fix <quote>cannot accept a set</> error when some arms of a CASE
return a set and others don't (Tom Lane)
Fix <quote>cannot accept a set</> error when some arms of
a <literal>CASE</> return a set and others don't (Tom Lane)
</para>
</listitem>
......@@ -873,7 +879,7 @@ Branch: REL8_4_STABLE [69f77d756] 2013-12-15 11:11:11 +0900
<listitem>
<para>
Accept <literal>SHIFT_JIS</> as an encoding name for locale checking
(Tatsuo Ishii)
purposes (Tatsuo Ishii)
</para>
</listitem>
......@@ -929,7 +935,7 @@ Branch: REL8_4_STABLE [7644a7bd8] 2014-02-13 18:45:32 -0500
<listitem>
<para>
Improve error handling in <application>psql</> and <application>libpq</>
Improve error handling in <application>libpq</> and <application>psql</>
for failures during <literal>COPY TO STDOUT/FROM STDIN</> (Tom Lane)
</para>
......@@ -959,21 +965,6 @@ Branch: REL9_2_STABLE [fa28f9cba] 2014-01-04 16:05:23 -0500
</para>
</listitem>
<!--
Author: Magnus Hagander <magnus@hagander.net>
Branch: master [b168c5ef2] 2014-01-07 17:11:32 +0100
Branch: REL9_3_STABLE [0463b9419] 2014-01-07 17:11:51 +0100
Branch: REL9_2_STABLE [2edf3e82c] 2014-01-07 17:22:36 +0100
Branch: REL9_1_STABLE [773e4d5e4] 2014-01-07 17:18:02 +0100
-->
<listitem>
<para>
Avoid including tablespaces inside PGDATA twice in base backups
(Dimitri Fontaine, Magnus Hagander)
</para>
</listitem>
<!--
Author: Magnus Hagander <magnus@hagander.net>
Branch: master [63ab2befe] 2014-02-12 18:45:18 +0100
......@@ -1003,6 +994,21 @@ Branch: REL9_1_STABLE [c6e5c4dd1] 2014-02-09 12:09:55 +0100
</para>
</listitem>
<!--
Author: Magnus Hagander <magnus@hagander.net>
Branch: master [b168c5ef2] 2014-01-07 17:11:32 +0100
Branch: REL9_3_STABLE [0463b9419] 2014-01-07 17:11:51 +0100
Branch: REL9_2_STABLE [2edf3e82c] 2014-01-07 17:22:36 +0100
Branch: REL9_1_STABLE [773e4d5e4] 2014-01-07 17:18:02 +0100
-->
<listitem>
<para>
Avoid including tablespaces inside PGDATA twice in base backups
(Dimitri Fontaine, Magnus Hagander)
</para>
</listitem>
<!--
Author: Michael Meskes <meskes@postgresql.org>
Branch: master [d685e2424] 2014-01-09 16:20:19 +0100
......@@ -1049,7 +1055,7 @@ Branch: REL8_4_STABLE [6c8b16e30] 2013-12-07 16:56:34 -0800
<listitem>
<para>
Fix performance regression in <filename>contrib/dblink</> connection
setup (Joe Conway)
startup (Joe Conway)
</para>
<para>
......@@ -1132,22 +1138,6 @@ Branch: REL8_4_STABLE [15699d9bf] 2014-01-17 23:17:59 -0500
</para>
</listitem>
<!--
Author: Andrew Dunstan <andrew@dunslane.net>
Branch: master [7e1531a45] 2014-02-01 16:08:33 -0500
Branch: REL9_3_STABLE [27942baf4] 2014-02-01 16:13:32 -0500
Branch: REL9_2_STABLE [fad443753] 2014-02-01 16:13:46 -0500
Branch: REL9_1_STABLE [e5c22c15d] 2014-02-01 16:14:01 -0500
Branch: REL9_0_STABLE [1c0bf372f] 2014-02-01 16:14:15 -0500
-->
<listitem>
<para>
Avoid using the deprecated <literal>dllwrap</> tool in Cygwin builds
(Marco Atzeri)
</para>
</listitem>
<!--
Author: Andrew Dunstan <andrew@dunslane.net>
Branch: master [d587298b8] 2014-02-01 15:11:13 -0500
......@@ -1171,6 +1161,22 @@ Branch: REL8_4_STABLE [ae3c98b9b] 2014-02-01 15:16:52 -0500
</para>
</listitem>
<!--
Author: Andrew Dunstan <andrew@dunslane.net>
Branch: master [7e1531a45] 2014-02-01 16:08:33 -0500
Branch: REL9_3_STABLE [27942baf4] 2014-02-01 16:13:32 -0500
Branch: REL9_2_STABLE [fad443753] 2014-02-01 16:13:46 -0500
Branch: REL9_1_STABLE [e5c22c15d] 2014-02-01 16:14:01 -0500
Branch: REL9_0_STABLE [1c0bf372f] 2014-02-01 16:14:15 -0500
-->
<listitem>
<para>
Avoid using the deprecated <literal>dllwrap</> tool in Cygwin builds
(Marco Atzeri)
</para>
</listitem>
<!--
Author: Andrew Dunstan <andrew@dunslane.net>
Branch: master [cec8394b5] 2014-01-26 09:49:10 -0500
......@@ -1202,11 +1208,11 @@ Branch: REL8_4_STABLE [432735cbf] 2014-02-10 20:48:30 -0500
<para>
These text files duplicated the main HTML and PDF documentation
formats. The trouble involved in maintaining them greatly outweighs
the likely audience for this format. Distribution tarballs will
still contain files by these names, but they'll just be stubs
the likely audience for plain-text format. Distribution tarballs
will still contain files by these names, but they'll just be stubs
directing the reader to consult the main documentation.
The plain-text <filename>INSTALL</> file will still be maintained, as
there is arguably an audience for that.
there is arguably a use-case for that.
</para>
</listitem>
......@@ -1227,9 +1233,10 @@ Branch: REL8_4_STABLE [c0c2d62ac] 2014-02-14 21:59:56 -0500
</para>
<para>
In addition, the zones Asia/Riyadh87, Asia/Riyadh88, and
Asia/Riyadh89 have been removed, as they are no longer maintained by
IANA, and never represented actual civil timekeeping practice.
In addition, the zones <literal>Asia/Riyadh87</>,
<literal>Asia/Riyadh88</>, and <literal>Asia/Riyadh89</> have been
removed, as they are no longer maintained by IANA, and never
represented actual civil timekeeping practice.
</para>
</listitem>
......
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