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>E.100. Release 8.3.21</A
></H1
><DIV
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><P
><B
>Release date: </B
>2012-09-24</P
></DIV
><P
> This release contains a variety of fixes from 8.3.20.
For information about new features in the 8.3 major release, see
<A
HREF="release-8-3.html"
>Section E.121</A
>.
</P
><P
> The <SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
> 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.
</P
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><H2
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><A
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>E.100.1. Migration to Version 8.3.21</A
></H2
><P
> A dump/restore is not required for those running 8.3.X.
</P
><P
> However, if you are upgrading from a version earlier than 8.3.17,
see <A
HREF="release-8-3-17.html"
>Section E.104</A
>.
</P
></DIV
><DIV
CLASS="SECT2"
><H2
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><A
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>E.100.2. Changes</A
></H2
><P
></P
><UL
><LI
><P
> Improve page-splitting decisions in GiST indexes (Alexander Korotkov,
Robert Haas, Tom Lane)
</P
><P
> Multi-column GiST indexes might suffer unexpected bloat due to this
error.
</P
></LI
><LI
><P
> Fix cascading privilege revoke to stop if privileges are still held
(Tom Lane)
</P
><P
> If we revoke a grant option from some role <TT
CLASS="REPLACEABLE"
><I
>X</I
></TT
>, but
<TT
CLASS="REPLACEABLE"
><I
>X</I
></TT
> still holds that option via a grant from someone
else, we should not recursively revoke the corresponding privilege
from role(s) <TT
CLASS="REPLACEABLE"
><I
>Y</I
></TT
> that <TT
CLASS="REPLACEABLE"
><I
>X</I
></TT
> had granted it
to.
</P
></LI
><LI
><P
> Fix handling of <TT
CLASS="LITERAL"
>SIGFPE</TT
> when PL/Perl is in use (Andres Freund)
</P
><P
> Perl resets the process's <TT
CLASS="LITERAL"
>SIGFPE</TT
> handler to
<TT
CLASS="LITERAL"
>SIG_IGN</TT
>, which could result in crashes later on. Restore
the normal Postgres signal handler after initializing PL/Perl.
</P
></LI
><LI
><P
> Prevent PL/Perl from crashing if a recursive PL/Perl function is
redefined while being executed (Tom Lane)
</P
></LI
><LI
><P
> Work around possible misoptimization in PL/Perl (Tom Lane)
</P
><P
> Some Linux distributions contain an incorrect version of
<TT
CLASS="FILENAME"
>pthread.h</TT
> that results in incorrect compiled code in
PL/Perl, leading to crashes if a PL/Perl function calls another one
that throws an error.
</P
></LI
><LI
><P
> Update time zone data files to <SPAN
CLASS="APPLICATION"
>tzdata</SPAN
> release 2012f
for DST law changes in Fiji
</P
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