| Server IP : 103.119.228.120 / Your IP : 18.119.167.189 Web Server : Apache System : Linux v8.techscape8.com 3.10.0-1160.119.1.el7.tuxcare.els2.x86_64 #1 SMP Mon Jul 15 12:09:18 UTC 2024 x86_64 User : nobody ( 99) PHP Version : 5.6.40 Disable Function : shell_exec,symlink,system,exec,proc_get_status,proc_nice,proc_terminate,define_syslog_variables,syslog,openlog,closelog,escapeshellcmd,passthru,ocinum cols,ini_alter,leak,listen,chgrp,apache_note,apache_setenv,debugger_on,debugger_off,ftp_exec,dl,dll,myshellexec,proc_open,socket_bind,proc_close,escapeshellarg,parse_ini_filepopen,fpassthru,exec,passthru,escapeshellarg,escapeshellcmd,proc_close,proc_open,ini_alter,popen,show_source,proc_nice,proc_terminate,proc_get_status,proc_close,pfsockopen,leak,apache_child_terminate,posix_kill,posix_mkfifo,posix_setpgid,posix_setsid,posix_setuid,dl,symlink,shell_exec,system,dl,passthru,escapeshellarg,escapeshellcmd,myshellexec,c99_buff_prepare,c99_sess_put,fpassthru,getdisfunc,fx29exec,fx29exec2,is_windows,disp_freespace,fx29sh_getupdate,fx29_buff_prepare,fx29_sess_put,fx29shexit,fx29fsearch,fx29ftpbrutecheck,fx29sh_tools,fx29sh_about,milw0rm,imagez,sh_name,myshellexec,checkproxyhost,dosyayicek,c99_buff_prepare,c99_sess_put,c99getsource,c99sh_getupdate,c99fsearch,c99shexit,view_perms,posix_getpwuid,posix_getgrgid,posix_kill,parse_perms,parsesort,view_perms_color,set_encoder_input,ls_setcheckboxall,ls_reverse_all,rsg_read,rsg_glob,selfURL,dispsecinfo,unix2DosTime,addFile,system,get_users,view_size,DirFiles,DirFilesWide,DirPrintHTMLHeaders,GetFilesTotal,GetTitles,GetTimeTotal,GetMatchesCount,GetFileMatchesCount,GetResultFiles,fs_copy_dir,fs_copy_obj,fs_move_dir,fs_move_obj,fs_rmdir,SearchText,getmicrotime MySQL : ON | cURL : ON | WGET : ON | Perl : ON | Python : ON | Sudo : ON | Pkexec : ON Directory : /usr/local/ssl/local/ssl/share/doc/postgresql-9.2.24/html/ |
Upload File : |
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<HTML
><HEAD
><TITLE
>Release 8.4.1</TITLE
><META
NAME="GENERATOR"
CONTENT="Modular DocBook HTML Stylesheet Version 1.79"><LINK
REV="MADE"
HREF="mailto:pgsql-docs@postgresql.org"><LINK
REL="HOME"
TITLE="PostgreSQL 9.2.24 Documentation"
HREF="index.html"><LINK
REL="UP"
TITLE="Release Notes"
HREF="release.html"><LINK
REL="PREVIOUS"
TITLE="Release 8.4.2"
HREF="release-8-4-2.html"><LINK
REL="NEXT"
TITLE="Release 8.4"
HREF="release-8-4.html"><LINK
REL="STYLESHEET"
TYPE="text/css"
HREF="stylesheet.css"><META
HTTP-EQUIV="Content-Type"
CONTENT="text/html; charset=ISO-8859-1"><META
NAME="creation"
CONTENT="2017-11-06T22:43:11"></HEAD
><BODY
CLASS="SECT1"
><DIV
CLASS="NAVHEADER"
><TABLE
SUMMARY="Header navigation table"
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TH
COLSPAN="5"
ALIGN="center"
VALIGN="bottom"
><A
HREF="index.html"
>PostgreSQL 9.2.24 Documentation</A
></TH
></TR
><TR
><TD
WIDTH="10%"
ALIGN="left"
VALIGN="top"
><A
TITLE="Release 8.4.2"
HREF="release-8-4-2.html"
ACCESSKEY="P"
>Prev</A
></TD
><TD
WIDTH="10%"
ALIGN="left"
VALIGN="top"
><A
HREF="release.html"
ACCESSKEY="U"
>Up</A
></TD
><TD
WIDTH="60%"
ALIGN="center"
VALIGN="bottom"
>Appendix E. Release Notes</TD
><TD
WIDTH="20%"
ALIGN="right"
VALIGN="top"
><A
TITLE="Release 8.4"
HREF="release-8-4.html"
ACCESSKEY="N"
>Next</A
></TD
></TR
></TABLE
><HR
ALIGN="LEFT"
WIDTH="100%"></DIV
><DIV
CLASS="SECT1"
><H1
CLASS="SECT1"
><A
NAME="RELEASE-8-4-1"
>E.96. Release 8.4.1</A
></H1
><DIV
CLASS="FORMALPARA"
><P
><B
>Release date: </B
>2009-09-09</P
></DIV
><P
> This release contains a variety of fixes from 8.4.
For information about new features in the 8.4 major release, see
<A
HREF="release-8-4.html"
>Section E.97</A
>.
</P
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN127330"
>E.96.1. Migration to Version 8.4.1</A
></H2
><P
> A dump/restore is not required for those running 8.4.X.
</P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN127333"
>E.96.2. Changes</A
></H2
><P
></P
><UL
><LI
><P
> Fix WAL page header initialization at the end of archive recovery
(Heikki)
</P
><P
> This could lead to failure to process the WAL in a subsequent
archive recovery.
</P
></LI
><LI
><P
> Fix <SPAN
CLASS="QUOTE"
>"cannot make new WAL entries during recovery"</SPAN
> error (Tom)
</P
></LI
><LI
><P
> Fix problem that could make expired rows visible after a crash (Tom)
</P
><P
> This bug involved a page status bit potentially not being set
correctly after a server crash.
</P
></LI
><LI
><P
> Disallow <TT
CLASS="COMMAND"
>RESET ROLE</TT
> and <TT
CLASS="COMMAND"
>RESET SESSION
AUTHORIZATION</TT
> inside security-definer functions (Tom, Heikki)
</P
><P
> This covers a case that was missed in the previous patch that
disallowed <TT
CLASS="COMMAND"
>SET ROLE</TT
> and <TT
CLASS="COMMAND"
>SET SESSION
AUTHORIZATION</TT
> inside security-definer functions.
(See CVE-2007-6600)
</P
></LI
><LI
><P
> Make <TT
CLASS="COMMAND"
>LOAD</TT
> of an already-loaded loadable module
into a no-op (Tom)
</P
><P
> Formerly, <TT
CLASS="COMMAND"
>LOAD</TT
> would attempt to unload and re-load the
module, but this is unsafe and not all that useful.
</P
></LI
><LI
><P
> Make window function <TT
CLASS="LITERAL"
>PARTITION BY</TT
> and <TT
CLASS="LITERAL"
>ORDER BY</TT
>
items always be interpreted as simple expressions (Tom)
</P
><P
> In 8.4.0 these lists were parsed following the rules used for
top-level <TT
CLASS="LITERAL"
>GROUP BY</TT
> and <TT
CLASS="LITERAL"
>ORDER BY</TT
> lists.
But this was not correct per the SQL standard, and it led to possible
circularity.
</P
></LI
><LI
><P
> Fix several errors in planning of semi-joins (Tom)
</P
><P
> These led to wrong query results in some cases where <TT
CLASS="LITERAL"
>IN</TT
>
or <TT
CLASS="LITERAL"
>EXISTS</TT
> was used together with another join.
</P
></LI
><LI
><P
> Fix handling of whole-row references to subqueries that are within
an outer join (Tom)
</P
><P
> An example is
<TT
CLASS="LITERAL"
>SELECT COUNT(ss.*) FROM ... LEFT JOIN (SELECT ...) ss ON ...</TT
>.
Here, <TT
CLASS="LITERAL"
>ss.*</TT
> would be treated as <TT
CLASS="LITERAL"
>ROW(NULL,NULL,...)</TT
>
for null-extended join rows, which is not the same as a simple NULL.
Now it is treated as a simple NULL.
</P
></LI
><LI
><P
> Fix Windows shared-memory allocation code (Tsutomu Yamada, Magnus)
</P
><P
> This bug led to the often-reported <SPAN
CLASS="QUOTE"
>"could not reattach
to shared memory"</SPAN
> error message.
</P
></LI
><LI
><P
> Fix locale handling with plperl (Heikki)
</P
><P
> This bug could cause the server's locale setting to change when a
plperl function is called, leading to data corruption.
</P
></LI
><LI
><P
> Fix handling of reloptions to ensure setting one option doesn't
force default values for others (Itagaki Takahiro)
</P
></LI
><LI
><P
> Ensure that a <SPAN
CLASS="QUOTE"
>"fast shutdown"</SPAN
> request will forcibly terminate
open sessions, even if a <SPAN
CLASS="QUOTE"
>"smart shutdown"</SPAN
> was already in progress
(Fujii Masao)
</P
></LI
><LI
><P
> Avoid memory leak for <CODE
CLASS="FUNCTION"
>array_agg()</CODE
> in <TT
CLASS="LITERAL"
>GROUP BY</TT
>
queries (Tom)
</P
></LI
><LI
><P
> Treat <CODE
CLASS="FUNCTION"
>to_char(..., 'TH')</CODE
> as an uppercase ordinal
suffix with <TT
CLASS="LITERAL"
>'HH'</TT
>/<TT
CLASS="LITERAL"
>'HH12'</TT
> (Heikki)
</P
><P
> It was previously handled as <TT
CLASS="LITERAL"
>'th'</TT
> (lowercase).
</P
></LI
><LI
><P
> Include the fractional part in the result of
<CODE
CLASS="FUNCTION"
>EXTRACT(second)</CODE
> and
<CODE
CLASS="FUNCTION"
>EXTRACT(milliseconds)</CODE
> for
<TT
CLASS="TYPE"
>time</TT
> and <TT
CLASS="TYPE"
>time with time zone</TT
> inputs (Tom)
</P
><P
> This has always worked for floating-point datetime configurations,
but was broken in the integer datetime code.
</P
></LI
><LI
><P
> Fix overflow for <TT
CLASS="LITERAL"
>INTERVAL '<TT
CLASS="REPLACEABLE"
><I
>x</I
></TT
> ms'</TT
>
when <TT
CLASS="REPLACEABLE"
><I
>x</I
></TT
> is more than 2 million and integer
datetimes are in use (Alex Hunsaker)
</P
></LI
><LI
><P
> Improve performance when processing toasted values in index scans (Tom)
</P
><P
> This is particularly useful for <A
HREF="http://postgis.net/"
TARGET="_top"
>PostGIS</A
>.
</P
></LI
><LI
><P
> Fix a typo that disabled <TT
CLASS="VARNAME"
>commit_delay</TT
> (Jeff Janes)
</P
></LI
><LI
><P
> Output early-startup messages to <TT
CLASS="FILENAME"
>postmaster.log</TT
> if the
server is started in silent mode (Tom)
</P
><P
> Previously such error messages were discarded, leading to
difficulty in debugging.
</P
></LI
><LI
><P
> Remove translated FAQs (Peter)
</P
><P
> They are now on the <A
HREF="http://wiki.postgresql.org/wiki/FAQ"
TARGET="_top"
>wiki</A
>. The
main FAQ was moved to the wiki some time ago.
</P
></LI
><LI
><P
> Fix <SPAN
CLASS="APPLICATION"
>pg_ctl</SPAN
> to not go into an infinite loop if
<TT
CLASS="FILENAME"
>postgresql.conf</TT
> is empty (Jeff Davis)
</P
></LI
><LI
><P
> Fix several errors in <SPAN
CLASS="APPLICATION"
>pg_dump</SPAN
>'s
<TT
CLASS="LITERAL"
>--binary-upgrade</TT
> mode (Bruce, Tom)
</P
><P
> <TT
CLASS="LITERAL"
>pg_dump --binary-upgrade</TT
> is used by pg_migrator.
</P
></LI
><LI
><P
> Fix <TT
CLASS="FILENAME"
>contrib/xml2</TT
>'s <CODE
CLASS="FUNCTION"
>xslt_process()</CODE
> to
properly handle the maximum number of parameters (twenty) (Tom)
</P
></LI
><LI
><P
> Improve robustness of <SPAN
CLASS="APPLICATION"
>libpq</SPAN
>'s code to recover
from errors during <TT
CLASS="COMMAND"
>COPY FROM STDIN</TT
> (Tom)
</P
></LI
><LI
><P
> Avoid including conflicting readline and editline header files
when both libraries are installed (Zdenek Kotala)
</P
></LI
><LI
><P
> Work around gcc bug that causes <SPAN
CLASS="QUOTE"
>"floating-point exception"</SPAN
>
instead of <SPAN
CLASS="QUOTE"
>"division by zero"</SPAN
> on some platforms (Tom)
</P
></LI
><LI
><P
> Update time zone data files to <SPAN
CLASS="APPLICATION"
>tzdata</SPAN
> release 2009l
for DST law changes in Bangladesh, Egypt, Mauritius.
</P
></LI
></UL
></DIV
></DIV
><DIV
CLASS="NAVFOOTER"
><HR
ALIGN="LEFT"
WIDTH="100%"><TABLE
SUMMARY="Footer navigation table"
WIDTH="100%"
BORDER="0"
CELLPADDING="0"
CELLSPACING="0"
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
><A
HREF="release-8-4-2.html"
ACCESSKEY="P"
>Prev</A
></TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="index.html"
ACCESSKEY="H"
>Home</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
><A
HREF="release-8-4.html"
ACCESSKEY="N"
>Next</A
></TD
></TR
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
>Release 8.4.2</TD
><TD
WIDTH="34%"
ALIGN="center"
VALIGN="top"
><A
HREF="release.html"
ACCESSKEY="U"
>Up</A
></TD
><TD
WIDTH="33%"
ALIGN="right"
VALIGN="top"
>Release 8.4</TD
></TR
></TABLE
></DIV
></BODY
></HTML
>