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>Appendix E. Release Notes</TD
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><A
NAME="RELEASE-7-4-1"
>E.226. Release 7.4.1</A
></H1
><DIV
CLASS="FORMALPARA"
><P
><B
>Release date: </B
>2003-12-22</P
></DIV
><P
>   This release contains a variety of fixes from 7.4.
   For information about new features in the 7.4 major release, see
   <A
HREF="release-7-4.html"
>Section E.227</A
>.
  </P
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN141789"
>E.226.1. Migration to Version 7.4.1</A
></H2
><P
>    A dump/restore is <SPAN
CLASS="emphasis"
><I
CLASS="EMPHASIS"
>not</I
></SPAN
> required for those
    running 7.4.
   </P
><P
>    If you want to install the fixes in the information schema
    you need to reload it into the database.
    This is either accomplished by initializing a new cluster
    by running <TT
CLASS="COMMAND"
>initdb</TT
>, or by running the following
    sequence of SQL commands in each database (ideally including
    <TT
CLASS="LITERAL"
>template1</TT
>) as a superuser in
    <SPAN
CLASS="APPLICATION"
>psql</SPAN
>, after installing the new release:
</P><PRE
CLASS="PROGRAMLISTING"
>DROP SCHEMA information_schema CASCADE;
\i /usr/local/pgsql/share/information_schema.sql</PRE
><P>
    Substitute your installation path in the second command.
   </P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN141798"
>E.226.2. Changes</A
></H2
><P
></P
><UL
><LI
><P
>Fixed bug in <TT
CLASS="COMMAND"
>CREATE SCHEMA</TT
> parsing in ECPG (Michael)</P
></LI
><LI
><P
>Fix compile error when <TT
CLASS="OPTION"
>--enable-thread-safety</TT
> and <TT
CLASS="OPTION"
>--with-perl</TT
> are used together (Peter)</P
></LI
><LI
><P
>Fix for subqueries that used hash joins (Tom)</P
><P
>   Certain subqueries that used hash joins would crash because of
   improperly shared structures.</P
></LI
><LI
><P
>Fix free space map compaction bug (Tom)</P
><P
>   This fixes a bug where compaction of the free space map could lead
   to a database server shutdown.</P
></LI
><LI
><P
>Fix for Borland compiler build of libpq (Bruce)</P
></LI
><LI
><P
>Fix <CODE
CLASS="FUNCTION"
>netmask()</CODE
> and <CODE
CLASS="FUNCTION"
>hostmask()</CODE
> to return the maximum-length masklen (Tom)</P
><P
>   Fix these functions to return values consistent with pre-7.4
   releases.</P
></LI
><LI
><P
>Several <TT
CLASS="FILENAME"
>contrib/pg_autovacuum</TT
> fixes</P
><P
>   Fixes include improper variable initialization, missing vacuum after
   <TT
CLASS="COMMAND"
>TRUNCATE</TT
>, and duration computation overflow for long vacuums.</P
></LI
><LI
><P
>Allow compile of <TT
CLASS="FILENAME"
>contrib/cube</TT
> under Cygwin (Jason Tishler)</P
></LI
><LI
><P
>Fix Solaris use of password file when no passwords are defined (Tom)</P
><P
>   Fix crash on Solaris caused by use of any type of password
   authentication when no passwords were defined.</P
></LI
><LI
><P
>JDBC fix for thread problems, other fixes</P
></LI
><LI
><P
>Fix for <TT
CLASS="TYPE"
>bytea</TT
> index lookups (Joe)</P
></LI
><LI
><P
>Fix information schema for bit data types (Peter)</P
></LI
><LI
><P
>Force zero_damaged_pages to be on during recovery from WAL</P
></LI
><LI
><P
>Prevent some obscure cases of <SPAN
CLASS="QUOTE"
>"variable not in subplan target lists"</SPAN
></P
></LI
><LI
><P
>Make <CODE
CLASS="FUNCTION"
>PQescapeBytea</CODE
> and <CODE
CLASS="FUNCTION"
>byteaout</CODE
> consistent with each other (Joe)</P
></LI
><LI
><P
>Escape <TT
CLASS="TYPE"
>bytea</TT
> output for bytes &gt; 0x7e(Joe)</P
><P
> If different client encodings are used for <TT
CLASS="TYPE"
>bytea</TT
> output and input, it
 is possible for <TT
CLASS="TYPE"
>bytea</TT
> values to be corrupted by the differing
 encodings.  This fix escapes all bytes that might be affected.</P
></LI
><LI
><P
>Added missing <CODE
CLASS="FUNCTION"
>SPI_finish()</CODE
> calls to dblink's <CODE
CLASS="FUNCTION"
>get_tuple_of_interest()</CODE
> (Joe)</P
></LI
><LI
><P
>New Czech FAQ</P
></LI
><LI
><P
>Fix information schema view <TT
CLASS="LITERAL"
>constraint_column_usage</TT
> for foreign keys (Peter)</P
></LI
><LI
><P
>ECPG fixes (Michael)</P
></LI
><LI
><P
>Fix bug with multiple <TT
CLASS="LITERAL"
>IN</TT
> subqueries and joins in the subqueries (Tom)</P
></LI
><LI
><P
>Allow <TT
CLASS="LITERAL"
>COUNT('x')</TT
> to work (Tom)</P
></LI
><LI
><P
>Install ECPG include files for Informix compatibility into separate directory (Peter)</P
><P
> Some names of ECPG include files for Informix compatibility conflicted with operating system include files.
 By installing them in their own directory, name conflicts have been reduced.</P
></LI
><LI
><P
>Fix SSL memory leak (Neil)</P
><P
> This release fixes a bug in 7.4 where SSL didn't free all memory it allocated.</P
></LI
><LI
><P
>Prevent <TT
CLASS="FILENAME"
>pg_service.conf</TT
> from using service name as default dbname (Bruce)</P
></LI
><LI
><P
>Fix local ident authentication on FreeBSD (Tom)</P
></LI
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