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>E.106. Release 8.3.15</A
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><P
><B
>Release date: </B
>2011-04-18</P
></DIV
><P
> This release contains a variety of fixes from 8.3.14.
For information about new features in the 8.3 major release, see
<A
HREF="release-8-3.html"
>Section E.121</A
>.
</P
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>E.106.1. Migration to Version 8.3.15</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
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><H2
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><A
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>E.106.2. Changes</A
></H2
><P
></P
><UL
><LI
><P
> Disallow including a composite type in itself (Tom Lane)
</P
><P
> This prevents scenarios wherein the server could recurse infinitely
while processing the composite type. While there are some possible
uses for such a structure, they don't seem compelling enough to
justify the effort required to make sure it always works safely.
</P
></LI
><LI
><P
> Avoid potential deadlock during catalog cache initialization
(Nikhil Sontakke)
</P
><P
> In some cases the cache loading code would acquire share lock on a
system index before locking the index's catalog. This could deadlock
against processes trying to acquire exclusive locks in the other,
more standard order.
</P
></LI
><LI
><P
> Fix dangling-pointer problem in <TT
CLASS="LITERAL"
>BEFORE ROW UPDATE</TT
> trigger
handling when there was a concurrent update to the target tuple
(Tom Lane)
</P
><P
> This bug has been observed to result in intermittent <SPAN
CLASS="QUOTE"
>"cannot
extract system attribute from virtual tuple"</SPAN
> failures while trying to
do <TT
CLASS="LITERAL"
>UPDATE RETURNING ctid</TT
>. There is a very small probability
of more serious errors, such as generating incorrect index entries for
the updated tuple.
</P
></LI
><LI
><P
> Disallow <TT
CLASS="COMMAND"
>DROP TABLE</TT
> when there are pending deferred trigger
events for the table (Tom Lane)
</P
><P
> Formerly the <TT
CLASS="COMMAND"
>DROP</TT
> would go through, leading to
<SPAN
CLASS="QUOTE"
>"could not open relation with OID nnn"</SPAN
> errors when the
triggers were eventually fired.
</P
></LI
><LI
><P
> Fix PL/Python memory leak involving array slices (Daniel Popowich)
</P
></LI
><LI
><P
> Fix <SPAN
CLASS="APPLICATION"
>pg_restore</SPAN
> to cope with long lines (over 1KB) in
TOC files (Tom Lane)
</P
></LI
><LI
><P
> Put in more safeguards against crashing due to division-by-zero
with overly enthusiastic compiler optimization (Aurelien Jarno)
</P
></LI
><LI
><P
> Support use of dlopen() in FreeBSD and OpenBSD on MIPS (Tom Lane)
</P
><P
> There was a hard-wired assumption that this system function was not
available on MIPS hardware on these systems. Use a compile-time test
instead, since more recent versions have it.
</P
></LI
><LI
><P
> Fix compilation failures on HP-UX (Heikki Linnakangas)
</P
></LI
><LI
><P
> Fix version-incompatibility problem with <SPAN
CLASS="APPLICATION"
>libintl</SPAN
> on
Windows (Hiroshi Inoue)
</P
></LI
><LI
><P
> Fix usage of <SPAN
CLASS="APPLICATION"
>xcopy</SPAN
> in Windows build scripts to
work correctly under Windows 7 (Andrew Dunstan)
</P
><P
> This affects the build scripts only, not installation or usage.
</P
></LI
><LI
><P
> Fix path separator used by <SPAN
CLASS="APPLICATION"
>pg_regress</SPAN
> on Cygwin
(Andrew Dunstan)
</P
></LI
><LI
><P
> Update time zone data files to <SPAN
CLASS="APPLICATION"
>tzdata</SPAN
> release 2011f
for DST law changes in Chile, Cuba, Falkland Islands, Morocco, Samoa,
and Turkey; also historical corrections for South Australia, Alaska,
and Hawaii.
</P
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