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>Appendix E. Release Notes</TD
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><A
NAME="RELEASE-8-3-2"
>E.119. Release 8.3.2</A
></H1
><DIV
CLASS="FORMALPARA"
><P
><B
>Release date: </B
>never released</P
></DIV
><P
>   This release contains a variety of fixes from 8.3.1.
   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="AEN131055"
>E.119.1. Migration to Version 8.3.2</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 8.3.1,
    see <A
HREF="release-8-3-1.html"
>Section E.120</A
>.
   </P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN131059"
>E.119.2. Changes</A
></H2
><P
></P
><UL
><LI
><P
>      Fix <TT
CLASS="LITERAL"
>ERRORDATA_STACK_SIZE exceeded</TT
> crash that
      occurred on Windows when using UTF-8 database encoding and a different
      client encoding (Tom)
     </P
></LI
><LI
><P
>      Fix incorrect archive truncation point calculation for the
      <TT
CLASS="LITERAL"
>%r</TT
> macro in <TT
CLASS="VARNAME"
>recovery_command</TT
> parameters
      (Simon)
     </P
><P
>      This could lead to data loss if a warm-standby script relied on
      <TT
CLASS="LITERAL"
>%r</TT
> to decide when to throw away WAL segment files.
     </P
></LI
><LI
><P
>      Fix <TT
CLASS="COMMAND"
>ALTER TABLE ADD COLUMN ... PRIMARY KEY</TT
> so that the new
      column is correctly checked to see if it's been initialized to all
      non-nulls (Brendan Jurd)
     </P
><P
>      Previous versions neglected to check this requirement at all.
     </P
></LI
><LI
><P
>      Fix <TT
CLASS="COMMAND"
>REASSIGN OWNED</TT
> so that it works on procedural
      languages too (Alvaro)
     </P
></LI
><LI
><P
>      Fix problems with <TT
CLASS="COMMAND"
>SELECT FOR UPDATE/SHARE</TT
> occurring as a
      subquery in a query with a non-<TT
CLASS="COMMAND"
>SELECT</TT
> top-level operation
      (Tom)
     </P
></LI
><LI
><P
>      Fix possible <TT
CLASS="COMMAND"
>CREATE TABLE</TT
> failure when inheriting the
      <SPAN
CLASS="QUOTE"
>"same"</SPAN
> constraint from multiple parent relations that
      inherited that constraint from a common ancestor (Tom)
     </P
></LI
><LI
><P
>      Fix <CODE
CLASS="FUNCTION"
>pg_get_ruledef()</CODE
> to show the alias, if any, attached
      to the target table of an <TT
CLASS="COMMAND"
>UPDATE</TT
> or <TT
CLASS="COMMAND"
>DELETE</TT
>
      (Tom)
     </P
></LI
><LI
><P
>      Restore the pre-8.3 behavior that an out-of-range block number in a
      TID being used in a TidScan plan results in silently not matching any
      rows (Tom)
     </P
><P
>      8.3.0 and 8.3.1 threw an error instead.
     </P
></LI
><LI
><P
>      Fix GIN bug that could result in a <TT
CLASS="LITERAL"
>too many LWLocks
      taken</TT
> failure (Teodor)
     </P
></LI
><LI
><P
>      Fix broken GiST comparison function for <TT
CLASS="TYPE"
>tsquery</TT
> (Teodor)
     </P
></LI
><LI
><P
>      Fix <CODE
CLASS="FUNCTION"
>tsvector_update_trigger()</CODE
> and <CODE
CLASS="FUNCTION"
>ts_stat()</CODE
>
      to accept domains over the types they expect to work with (Tom)
     </P
></LI
><LI
><P
>      Fix failure to support enum data types as foreign keys (Tom)
     </P
></LI
><LI
><P
>      Avoid possible crash when decompressing corrupted data
      (Zdenek Kotala)
     </P
></LI
><LI
><P
>      Fix race conditions between delayed unlinks and <TT
CLASS="COMMAND"
>DROP
      DATABASE</TT
> (Heikki)
     </P
><P
>      In the worst case this could result in deleting a newly created table
      in a new database that happened to get the same OID as the
      recently-dropped one; but of course that is an extremely
      low-probability scenario.
     </P
></LI
><LI
><P
>      Repair two places where SIGTERM exit of a backend could leave corrupted
      state in shared memory (Tom)
     </P
><P
>      Neither case is very important if SIGTERM is used to shut down the
      whole database cluster together, but there was a problem if someone
      tried to SIGTERM individual backends.
     </P
></LI
><LI
><P
>      Fix possible crash due to incorrect plan generated for an
      <TT
CLASS="LITERAL"
><TT
CLASS="REPLACEABLE"
><I
>x</I
></TT
> IN (SELECT <TT
CLASS="REPLACEABLE"
><I
>y</I
></TT
>
      FROM ...)</TT
> clause when <TT
CLASS="REPLACEABLE"
><I
>x</I
></TT
> and <TT
CLASS="REPLACEABLE"
><I
>y</I
></TT
>
      have different data types; and make sure the behavior is semantically
      correct when the conversion from <TT
CLASS="REPLACEABLE"
><I
>y</I
></TT
>'s type to
      <TT
CLASS="REPLACEABLE"
><I
>x</I
></TT
>'s type is lossy (Tom)
     </P
></LI
><LI
><P
>      Fix oversight that prevented the planner from substituting known Param
      values as if they were constants (Tom)
     </P
><P
>      This mistake partially disabled optimization of unnamed
      extended-Query statements in 8.3.0 and 8.3.1: in particular the
      LIKE-to-indexscan optimization would never be applied if the LIKE
      pattern was passed as a parameter, and constraint exclusion
      depending on a parameter value didn't work either.
     </P
></LI
><LI
><P
>      Fix planner failure when an indexable <CODE
CLASS="FUNCTION"
>MIN</CODE
> or
      <CODE
CLASS="FUNCTION"
>MAX</CODE
> aggregate is used with <TT
CLASS="LITERAL"
>DISTINCT</TT
> or
      <TT
CLASS="LITERAL"
>ORDER BY</TT
> (Tom)
     </P
></LI
><LI
><P
>      Fix planner to ensure it never uses a <SPAN
CLASS="QUOTE"
>"physical tlist"</SPAN
> for a
      plan node that is feeding a Sort node (Tom)
     </P
><P
>      This led to the sort having to push around more data than it really
      needed to, since unused column values were included in the sorted
      data.
     </P
></LI
><LI
><P
>      Avoid unnecessary copying of query strings (Tom)
     </P
><P
>      This fixes a performance problem introduced in 8.3.0 when a very large
      number of commands are submitted as a single query string.
     </P
></LI
><LI
><P
>      Make <CODE
CLASS="FUNCTION"
>TransactionIdIsCurrentTransactionId()</CODE
> use binary
      search instead of linear search when checking child-transaction XIDs
      (Heikki)
     </P
><P
>      This fixes some cases in which 8.3.0 was significantly
      slower than earlier releases.
     </P
></LI
><LI
><P
>      Fix conversions between ISO-8859-5 and other encodings to handle
      Cyrillic <SPAN
CLASS="QUOTE"
>"Yo"</SPAN
> characters (<TT
CLASS="LITERAL"
>e</TT
> and <TT
CLASS="LITERAL"
>E</TT
> with
      two dots) (Sergey Burladyan)
     </P
></LI
><LI
><P
>      Fix several datatype input functions, notably <CODE
CLASS="FUNCTION"
>array_in()</CODE
>,
      that were allowing unused bytes in their results to contain
      uninitialized, unpredictable values (Tom)
     </P
><P
>      This could lead to failures in which two apparently identical literal
      values were not seen as equal, resulting in the parser complaining
      about unmatched <TT
CLASS="LITERAL"
>ORDER BY</TT
> and <TT
CLASS="LITERAL"
>DISTINCT</TT
>
      expressions.
     </P
></LI
><LI
><P
>      Fix a corner case in regular-expression substring matching
      (<TT
CLASS="LITERAL"
>substring(<TT
CLASS="REPLACEABLE"
><I
>string</I
></TT
> from
      <TT
CLASS="REPLACEABLE"
><I
>pattern</I
></TT
>)</TT
>) (Tom)
     </P
><P
>      The problem occurs when there is a match to the pattern overall but
      the user has specified a parenthesized subexpression and that
      subexpression hasn't got a match.  An example is
      <TT
CLASS="LITERAL"
>substring('foo' from 'foo(bar)?')</TT
>.
      This should return NULL, since <TT
CLASS="LITERAL"
>(bar)</TT
> isn't matched, but
      it was mistakenly returning the whole-pattern match instead (ie,
      <TT
CLASS="LITERAL"
>foo</TT
>).
     </P
></LI
><LI
><P
>      Prevent cancellation of an auto-vacuum that was launched to prevent
      XID wraparound (Alvaro)
     </P
></LI
><LI
><P
>      Improve <TT
CLASS="COMMAND"
>ANALYZE</TT
>'s handling of in-doubt tuples (those
      inserted or deleted by a not-yet-committed transaction) so that the
      counts it reports to the stats collector are more likely to be correct
      (Pavan Deolasee)
     </P
></LI
><LI
><P
>      Fix <SPAN
CLASS="APPLICATION"
>initdb</SPAN
> to reject a relative path for its
      <TT
CLASS="LITERAL"
>--xlogdir</TT
> (<TT
CLASS="LITERAL"
>-X</TT
>) option (Tom)
     </P
></LI
><LI
><P
>      Make <SPAN
CLASS="APPLICATION"
>psql</SPAN
> print tab characters as an appropriate
      number of spaces, rather than <TT
CLASS="LITERAL"
>\x09</TT
> as was done in
      8.3.0 and 8.3.1 (Bruce)
     </P
></LI
><LI
><P
>      Update time zone data files to <SPAN
CLASS="APPLICATION"
>tzdata</SPAN
> release 2008c (for
      DST law changes in Morocco, Iraq, Choibalsan, Pakistan, Syria, Cuba, and
      Argentina/San_Luis)
     </P
></LI
><LI
><P
>      Add <CODE
CLASS="FUNCTION"
>ECPGget_PGconn()</CODE
> function to
      <SPAN
CLASS="APPLICATION"
>ecpglib</SPAN
> (Michael)
     </P
></LI
><LI
><P
>      Fix incorrect result from <SPAN
CLASS="APPLICATION"
>ecpg</SPAN
>'s
      <CODE
CLASS="FUNCTION"
>PGTYPEStimestamp_sub()</CODE
> function (Michael)
     </P
></LI
><LI
><P
>      Fix handling of continuation line markers in <SPAN
CLASS="APPLICATION"
>ecpg</SPAN
>
      (Michael)
     </P
></LI
><LI
><P
>      Fix possible crashes in <TT
CLASS="FILENAME"
>contrib/cube</TT
> functions (Tom)
     </P
></LI
><LI
><P
>      Fix core dump in <TT
CLASS="FILENAME"
>contrib/xml2</TT
>'s
      <CODE
CLASS="FUNCTION"
>xpath_table()</CODE
> function when the input query returns a
      NULL value (Tom)
     </P
></LI
><LI
><P
>      Fix <TT
CLASS="FILENAME"
>contrib/xml2</TT
>'s makefile to not override
      <TT
CLASS="LITERAL"
>CFLAGS</TT
>, and make it auto-configure properly for
      <SPAN
CLASS="APPLICATION"
>libxslt</SPAN
> present or not (Tom)
     </P
></LI
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