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>Appendix E. Release Notes</TD
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>E.64. Release 9.0.10</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 9.0.9.
   For information about new features in the 9.0 major release, see
   <A
HREF="release-9-0.html"
>Section E.74</A
>.
  </P
><DIV
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><H2
CLASS="SECT2"
><A
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>E.64.1. Migration to Version 9.0.10</A
></H2
><P
>    A dump/restore is not required for those running 9.0.X.
   </P
><P
>    However, if you are upgrading from a version earlier than 9.0.6,
    see <A
HREF="release-9-0-6.html"
>Section E.68</A
>.
   </P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN122060"
>E.64.2. Changes</A
></H2
><P
></P
><UL
><LI
><P
>      Fix planner's assignment of executor parameters, and fix executor's
      rescan logic for CTE plan nodes (Tom Lane)
     </P
><P
>      These errors could result in wrong answers from queries that scan the
      same <TT
CLASS="LITERAL"
>WITH</TT
> subquery multiple times.
     </P
></LI
><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
>      Improve error messages for Hot Standby misconfiguration errors
      (Gurjeet Singh)
     </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
>      Fix <SPAN
CLASS="APPLICATION"
>pg_upgrade</SPAN
>'s handling of line endings on Windows
      (Andrew Dunstan)
     </P
><P
>      Previously, <SPAN
CLASS="APPLICATION"
>pg_upgrade</SPAN
> might add or remove carriage
      returns in places such as function bodies.
     </P
></LI
><LI
><P
>      On Windows, make <SPAN
CLASS="APPLICATION"
>pg_upgrade</SPAN
> use backslash path
      separators in the scripts it emits (Andrew Dunstan)
     </P
></LI
><LI
><P
>      Update time zone data files to <SPAN
CLASS="APPLICATION"
>tzdata</SPAN
> release 2012f
      for DST law changes in Fiji
     </P
></LI
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