| Server IP : 103.119.228.120 / Your IP : 3.144.115.125 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/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 8.4.21</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 8.4.22"
HREF="release-8-4-22.html"><LINK
REL="NEXT"
TITLE="Release 8.4.20"
HREF="release-8-4-20.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 8.4.22"
HREF="release-8-4-22.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 8.4.20"
HREF="release-8-4-20.html"
ACCESSKEY="N"
>Next</A
></TD
></TR
></TABLE
><HR
ALIGN="LEFT"
WIDTH="100%"></DIV
><DIV
CLASS="SECT1"
><H1
CLASS="SECT1"
><A
NAME="RELEASE-8-4-21"
>E.76. Release 8.4.21</A
></H1
><DIV
CLASS="FORMALPARA"
><P
><B
>Release date: </B
>2014-03-20</P
></DIV
><P
> This release contains a variety of fixes from 8.4.20.
For information about new features in the 8.4 major release, see
<A
HREF="release-8-4.html"
>Section E.97</A
>.
</P
><P
> The <SPAN
CLASS="PRODUCTNAME"
>PostgreSQL</SPAN
> community will stop releasing updates
for the 8.4.X release series in July 2014.
Users are encouraged to update to a newer release branch soon.
</P
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN124972"
>E.76.1. Migration to Version 8.4.21</A
></H2
><P
> A dump/restore is not required for those running 8.4.X.
</P
><P
> However, if you are upgrading from a version earlier than 8.4.19,
see <A
HREF="release-8-4-19.html"
>Section E.78</A
>.
</P
></DIV
><DIV
CLASS="SECT2"
><H2
CLASS="SECT2"
><A
NAME="AEN124977"
>E.76.2. Changes</A
></H2
><P
></P
><UL
><LI
><P
> Restore GIN metapages unconditionally to avoid torn-page risk
(Heikki Linnakangas)
</P
><P
> Although this oversight could theoretically result in a corrupted
index, it is unlikely to have caused any problems in practice, since
the active part of a GIN metapage is smaller than a standard 512-byte
disk sector.
</P
></LI
><LI
><P
> Allow regular-expression operators to be terminated early by query
cancel requests (Tom Lane)
</P
><P
> This prevents scenarios wherein a pathological regular expression
could lock up a server process uninterruptibly for a long time.
</P
></LI
><LI
><P
> Remove incorrect code that tried to allow <TT
CLASS="LITERAL"
>OVERLAPS</TT
> with
single-element row arguments (Joshua Yanovski)
</P
><P
> This code never worked correctly, and since the case is neither
specified by the SQL standard nor documented, it seemed better to
remove it than fix it.
</P
></LI
><LI
><P
> Avoid getting more than <TT
CLASS="LITERAL"
>AccessShareLock</TT
> when de-parsing a
rule or view (Dean Rasheed)
</P
><P
> This oversight resulted in <SPAN
CLASS="APPLICATION"
>pg_dump</SPAN
> unexpectedly
acquiring <TT
CLASS="LITERAL"
>RowExclusiveLock</TT
> locks on tables mentioned as
the targets of <TT
CLASS="LITERAL"
>INSERT</TT
>/<TT
CLASS="LITERAL"
>UPDATE</TT
>/<TT
CLASS="LITERAL"
>DELETE</TT
>
commands in rules. While usually harmless, that could interfere with
concurrent transactions that tried to acquire, for example,
<TT
CLASS="LITERAL"
>ShareLock</TT
> on those tables.
</P
></LI
><LI
><P
> Prevent interrupts while reporting non-<TT
CLASS="LITERAL"
>ERROR</TT
> messages
(Tom Lane)
</P
><P
> This guards against rare server-process freezeups due to recursive
entry to <CODE
CLASS="FUNCTION"
>syslog()</CODE
>, and perhaps other related problems.
</P
></LI
><LI
><P
> Update time zone data files to <SPAN
CLASS="APPLICATION"
>tzdata</SPAN
> release 2014a
for DST law changes in Fiji and Turkey, plus historical changes in
Israel and Ukraine.
</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-8-4-22.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-8-4-20.html"
ACCESSKEY="N"
>Next</A
></TD
></TR
><TR
><TD
WIDTH="33%"
ALIGN="left"
VALIGN="top"
>Release 8.4.22</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 8.4.20</TD
></TR
></TABLE
></DIV
></BODY
></HTML
>