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>Appendix E. Release Notes</TD
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><A
NAME="RELEASE-8-3-16"
>E.105. Release 8.3.16</A
></H1
><DIV
CLASS="FORMALPARA"
><P
><B
>Release date: </B
>2011-09-26</P
></DIV
><P
> This release contains a variety of fixes from 8.3.15.
For information about new features in the 8.3 major release, see
<A
HREF="release-8-3.html"
>Section E.121</A
>.
</P
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN129624"
>E.105.1. Migration to Version 8.3.16</A
></H2
><P
> A dump/restore is not required for those running 8.3.X.
However, if you are upgrading from a version earlier than 8.3.8,
see <A
HREF="release-8-3-8.html"
>Section E.113</A
>.
</P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN129628"
>E.105.2. Changes</A
></H2
><P
></P
><UL
><LI
><P
> Fix bugs in indexing of in-doubt HOT-updated tuples (Tom Lane)
</P
><P
> These bugs could result in index corruption after reindexing a system
catalog. They are not believed to affect user indexes.
</P
></LI
><LI
><P
> Fix multiple bugs in GiST index page split processing (Heikki
Linnakangas)
</P
><P
> The probability of occurrence was low, but these could lead to index
corruption.
</P
></LI
><LI
><P
> Fix possible buffer overrun in <CODE
CLASS="FUNCTION"
>tsvector_concat()</CODE
>
(Tom Lane)
</P
><P
> The function could underestimate the amount of memory needed for its
result, leading to server crashes.
</P
></LI
><LI
><P
> Fix crash in <CODE
CLASS="FUNCTION"
>xml_recv</CODE
> when processing a
<SPAN
CLASS="QUOTE"
>"standalone"</SPAN
> parameter (Tom Lane)
</P
></LI
><LI
><P
> Avoid possibly accessing off the end of memory in <TT
CLASS="COMMAND"
>ANALYZE</TT
>
and in SJIS-2004 encoding conversion (Noah Misch)
</P
><P
> This fixes some very-low-probability server crash scenarios.
</P
></LI
><LI
><P
> Fix race condition in relcache init file invalidation (Tom Lane)
</P
><P
> There was a window wherein a new backend process could read a stale init
file but miss the inval messages that would tell it the data is stale.
The result would be bizarre failures in catalog accesses, typically
<SPAN
CLASS="QUOTE"
>"could not read block 0 in file ..."</SPAN
> later during startup.
</P
></LI
><LI
><P
> Fix memory leak at end of a GiST index scan (Tom Lane)
</P
><P
> Commands that perform many separate GiST index scans, such as
verification of a new GiST-based exclusion constraint on a table
already containing many rows, could transiently require large amounts of
memory due to this leak.
</P
></LI
><LI
><P
> Fix performance problem when constructing a large, lossy bitmap
(Tom Lane)
</P
></LI
><LI
><P
> Fix array- and path-creating functions to ensure padding bytes are
zeroes (Tom Lane)
</P
><P
> This avoids some situations where the planner will think that
semantically-equal constants are not equal, resulting in poor
optimization.
</P
></LI
><LI
><P
> Work around gcc 4.6.0 bug that breaks WAL replay (Tom Lane)
</P
><P
> This could lead to loss of committed transactions after a server crash.
</P
></LI
><LI
><P
> Fix dump bug for <TT
CLASS="LITERAL"
>VALUES</TT
> in a view (Tom Lane)
</P
></LI
><LI
><P
> Disallow <TT
CLASS="LITERAL"
>SELECT FOR UPDATE/SHARE</TT
> on sequences (Tom Lane)
</P
><P
> This operation doesn't work as expected and can lead to failures.
</P
></LI
><LI
><P
> Defend against integer overflow when computing size of a hash table (Tom
Lane)
</P
></LI
><LI
><P
> Fix cases where <TT
CLASS="COMMAND"
>CLUSTER</TT
> might attempt to access
already-removed TOAST data (Tom Lane)
</P
></LI
><LI
><P
> Fix portability bugs in use of credentials control messages for
<SPAN
CLASS="QUOTE"
>"peer"</SPAN
> authentication (Tom Lane)
</P
></LI
><LI
><P
> Fix SSPI login when multiple roundtrips are required (Ahmed Shinwari,
Magnus Hagander)
</P
><P
> The typical symptom of this problem was <SPAN
CLASS="QUOTE"
>"The function requested is
not supported"</SPAN
> errors during SSPI login.
</P
></LI
><LI
><P
> Fix typo in <CODE
CLASS="FUNCTION"
>pg_srand48</CODE
> seed initialization (Andres Freund)
</P
><P
> This led to failure to use all bits of the provided seed. This function
is not used on most platforms (only those without <CODE
CLASS="FUNCTION"
>srandom</CODE
>),
and the potential security exposure from a less-random-than-expected
seed seems minimal in any case.
</P
></LI
><LI
><P
> Avoid integer overflow when the sum of <TT
CLASS="LITERAL"
>LIMIT</TT
> and
<TT
CLASS="LITERAL"
>OFFSET</TT
> values exceeds 2^63 (Heikki Linnakangas)
</P
></LI
><LI
><P
> Add overflow checks to <TT
CLASS="TYPE"
>int4</TT
> and <TT
CLASS="TYPE"
>int8</TT
> versions of
<CODE
CLASS="FUNCTION"
>generate_series()</CODE
> (Robert Haas)
</P
></LI
><LI
><P
> Fix trailing-zero removal in <CODE
CLASS="FUNCTION"
>to_char()</CODE
> (Marti Raudsepp)
</P
><P
> In a format with <TT
CLASS="LITERAL"
>FM</TT
> and no digit positions
after the decimal point, zeroes to the left of the decimal point could
be removed incorrectly.
</P
></LI
><LI
><P
> Fix <CODE
CLASS="FUNCTION"
>pg_size_pretty()</CODE
> to avoid overflow for inputs close to
2^63 (Tom Lane)
</P
></LI
><LI
><P
> In <SPAN
CLASS="APPLICATION"
>pg_ctl</SPAN
>, support silent mode for service registrations
on Windows (MauMau)
</P
></LI
><LI
><P
> Fix <SPAN
CLASS="APPLICATION"
>psql</SPAN
>'s counting of script file line numbers during
<TT
CLASS="LITERAL"
>COPY</TT
> from a different file (Tom Lane)
</P
></LI
><LI
><P
> Fix <SPAN
CLASS="APPLICATION"
>pg_restore</SPAN
>'s direct-to-database mode for
<TT
CLASS="VARNAME"
>standard_conforming_strings</TT
> (Tom Lane)
</P
><P
> <SPAN
CLASS="APPLICATION"
>pg_restore</SPAN
> could emit incorrect commands when restoring
directly to a database server from an archive file that had been made
with <TT
CLASS="VARNAME"
>standard_conforming_strings</TT
> set to <TT
CLASS="LITERAL"
>on</TT
>.
</P
></LI
><LI
><P
> Fix write-past-buffer-end and memory leak in <SPAN
CLASS="APPLICATION"
>libpq</SPAN
>'s
LDAP service lookup code (Albe Laurenz)
</P
></LI
><LI
><P
> In <SPAN
CLASS="APPLICATION"
>libpq</SPAN
>, avoid failures when using nonblocking I/O
and an SSL connection (Martin Pihlak, Tom Lane)
</P
></LI
><LI
><P
> Improve libpq's handling of failures during connection startup
(Tom Lane)
</P
><P
> In particular, the response to a server report of <CODE
CLASS="FUNCTION"
>fork()</CODE
>
failure during SSL connection startup is now saner.
</P
></LI
><LI
><P
> Improve <SPAN
CLASS="APPLICATION"
>libpq</SPAN
>'s error reporting for SSL failures (Tom
Lane)
</P
></LI
><LI
><P
> Make <SPAN
CLASS="APPLICATION"
>ecpglib</SPAN
> write <TT
CLASS="TYPE"
>double</TT
> values with 15 digits
precision (Akira Kurosawa)
</P
></LI
><LI
><P
> In <SPAN
CLASS="APPLICATION"
>ecpglib</SPAN
>, be sure <TT
CLASS="LITERAL"
>LC_NUMERIC</TT
> setting is
restored after an error (Michael Meskes)
</P
></LI
><LI
><P
> Apply upstream fix for blowfish signed-character bug (CVE-2011-2483)
(Tom Lane)
</P
><P
> <TT
CLASS="FILENAME"
>contrib/pg_crypto</TT
>'s blowfish encryption code could give
wrong results on platforms where char is signed (which is most),
leading to encrypted passwords being weaker than they should be.
</P
></LI
><LI
><P
> Fix memory leak in <TT
CLASS="FILENAME"
>contrib/seg</TT
> (Heikki Linnakangas)
</P
></LI
><LI
><P
> Fix <CODE
CLASS="FUNCTION"
>pgstatindex()</CODE
> to give consistent results for empty
indexes (Tom Lane)
</P
></LI
><LI
><P
> Allow building with perl 5.14 (Alex Hunsaker)
</P
></LI
><LI
><P
> Update configure script's method for probing existence of system
functions (Tom Lane)
</P
><P
> The version of autoconf we used in 8.3 and 8.2 could be fooled by
compilers that perform link-time optimization.
</P
></LI
><LI
><P
> Fix assorted issues with build and install file paths containing spaces
(Tom Lane)
</P
></LI
><LI
><P
> Update time zone data files to <SPAN
CLASS="APPLICATION"
>tzdata</SPAN
> release 2011i
for DST law changes in Canada, Egypt, Russia, Samoa, and South Sudan.
</P
></LI
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