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@ -1,4 +1,4 @@ |
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<!-- $PostgreSQL: pgsql/doc/src/sgml/release-8.4.sgml,v 1.14 2009/08/27 20:05:28 alvherre Exp $ --> |
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<!-- $PostgreSQL: pgsql/doc/src/sgml/release-8.4.sgml,v 1.15 2009/09/03 22:13:47 tgl Exp $ --> |
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<!-- See header comment in release.sgml about typical markup --> |
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<sect1 id="release-8-4-1"> |
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@ -6,7 +6,7 @@ |
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<note> |
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<title>Release date</title> |
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<simpara>2009-09-09, AS OF 2009-08-26</simpara> |
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<simpara>2009-09-09</simpara> |
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</note> |
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<para> |
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@ -31,139 +31,196 @@ |
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<listitem> |
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<para> |
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Fix pg_dump <literal>--binary-upgrade</> to handle dropped inherited columns |
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and their check constraints properly (Tom) |
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Fix WAL page header initialization at the end of archive recovery |
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(Heikki) |
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</para> |
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<para> |
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<literal>pg_dump --binary-upgrade</> is used by pg_migrator. |
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This could lead to failure to process the WAL in a subsequent |
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archive recovery. |
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</para> |
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</listitem> |
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<listitem> |
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<para> |
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Fix pg_dump <literal>--binary-upgrade</> to handle pg_largeobject frozen xid value |
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(Bruce) |
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Fix <quote>cannot make new WAL entries during recovery</> error (Tom) |
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</para> |
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</listitem> |
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<listitem> |
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<para> |
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Allow parentheses around the <literal>WITH</> query expression |
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body (Tom) |
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Fix problem that could make expired rows visible after a crash (Tom) |
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</para> |
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<para> |
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This bug involved a page status bit potentially not being set |
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correctly after a server crash. |
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</para> |
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</listitem> |
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<listitem> |
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<para> |
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Treat <function>to_char(..., 'TH')</> as an uppercase ordinal |
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suffix with <literal>'HH'</>/<literal>'HH12'</> (Heikki) |
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Disallow <command>RESET ROLE</> and <command>RESET SESSION |
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AUTHORIZATION</> inside security-definer functions (Tom, Heikki) |
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</para> |
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<para> |
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It was previously handled as <literal>'th'</> (lowercase). |
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This covers a case that was missed in the previous patch that |
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disallowed <command>SET ROLE</> and <command>SET SESSION |
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AUTHORIZATION</> inside security-definer functions. |
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(See CVE-2007-6600) |
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</para> |
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</listitem> |
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<listitem> |
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<para> |
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Fix locale handling with plperl (Heikki) |
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Make <command>LOAD</> of an already-loaded loadable module |
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into a no-op (Tom) |
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</para> |
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<para> |
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This bug could cause the servers locale to change, leading to |
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data corruption. |
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Formerly, <command>LOAD</> would attempt to unload and re-load the |
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module, but this is unsafe and not all that useful. |
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</para> |
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</listitem> |
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<listitem> |
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<para> |
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Fix <filename>/contrib/xml2</> <function>xslt_process()</> to |
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properly handle the maximum number of parameters (twenty) (Tom) |
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Make window function <literal>PARTITION BY</> and <literal>ORDER BY</> |
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items always be interpreted as simple expressions (Tom) |
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</para> |
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<para> |
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In 8.4.0 these lists were parsed following the rules used for |
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top-level <literal>GROUP BY</> and <literal>ORDER BY</> lists. |
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But this was not correct per the SQL standard, and it led to possible |
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circularity. |
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</para> |
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</listitem> |
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<listitem> |
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<para> |
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Remove translated FAQs (Peter) |
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Fix several errors in planning of semi-joins (Tom) |
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</para> |
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<para> |
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They are now on the <ulink |
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url="http://wiki.postgresql.org/wiki/FAQ">wiki</ulink>. The |
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main FAQ was moved to the wiki some time ago. |
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These led to wrong query results in some cases where <literal>IN</> |
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or <literal>EXISTS</> was used together with another join. |
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</para> |
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</listitem> |
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<listitem> |
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<para> |
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Fix handling of whole-row references to subqueries that are within |
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an outer join (Tom) |
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</para> |
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<para> |
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An example is |
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<literal>SELECT COUNT(ss.*) FROM ... LEFT JOIN (SELECT ...) ss ON ...</>. |
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Here, <literal>ss.*</> would be treated as <literal>ROW(NULL,NULL,...)</> |
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for null-extended join rows, which is not the same as a simple NULL. |
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Now it is treated as a simple NULL. |
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</para> |
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</listitem> |
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<listitem> |
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<para> |
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Reduce memory consumption of aggregates on arrays (Tom) |
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Fix Windows shared-memory allocation code (Tsutomu Yamada, Magnus) |
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</para> |
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<para> |
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This bug led to the often-reported <quote>could not reattach |
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to shared memory</> error message. |
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</para> |
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</listitem> |
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<listitem> |
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<para> |
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Properly show fractional seconds and milliseconds for |
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<function>EXTRACT()</> (Tom) |
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Fix locale handling with plperl (Heikki) |
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</para> |
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<para> |
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This bug could cause the server's locale setting to change when a |
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plperl function is called, leading to data corruption. |
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</para> |
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</listitem> |
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<listitem> |
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<para> |
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Fix case where <application>pg_ctl</> fast shutdown was not |
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working if <application>pg_ctl</> smart shutdown was already in |
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progress (Fujii Masao) |
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Fix handling of reloptions to ensure setting one option doesn't |
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force default values for others (Itagaki Takahiro) |
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</para> |
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</listitem> |
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<listitem> |
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<para> |
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Fix rare recovery error related to the creation of WAL entries (Tom) |
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Ensure that a <quote>fast shutdown</> request will forcibly terminate |
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open sessions, even if a <quote>smart shutdown</> was already in progress |
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(Fujii Masao) |
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</para> |
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</listitem> |
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<listitem> |
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<para> |
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Re-add documentation for configure flag <literal>--no-readline</> (Andrew) |
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Avoid memory leak for <function>array_agg()</> in <literal>GROUP BY</> |
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queries (Tom) |
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</para> |
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</listitem> |
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<listitem> |
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<para> |
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Fix problem where Win32 shared memory allocation sometimes failed on |
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startup (Tsutomu Yamada, Magnus) |
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Treat <function>to_char(..., 'TH')</> as an uppercase ordinal |
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suffix with <literal>'HH'</>/<literal>'HH12'</> (Heikki) |
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</para> |
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<para> |
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This bug caused some Win32 backends to randomly not start. |
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It was previously handled as <literal>'th'</> (lowercase). |
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</para> |
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</listitem> |
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<listitem> |
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<para> |
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Improve performance when processing TOAST rows (Tom) |
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Include the fractional part in the result of |
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<function>EXTRACT(second)</> and |
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<function>EXTRACT(milliseconds)</> for |
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<type>time</> and <type>time with time zone</> inputs (Tom) |
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</para> |
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<para> |
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This is particularly useful for <ulink |
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url="http://postgis.refractions.net/">PostGIS</ulink>. |
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This has always worked for floating-point datetime configurations, |
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but was broken in the integer datetime code. |
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</para> |
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</listitem> |
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<listitem> |
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<para> |
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Fix overflow for <literal>INTERVAL '<replaceable>x</> ms'</literal> |
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when <replaceable>x</> is more than 2 million and integer |
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datetimes are in use (Alex Hunsaker) |
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</para> |
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</listitem> |
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<listitem> |
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<para> |
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Fix problem where expired rows could appear visible after a crash (Tom) |
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Improve performance when processing toasted values in index scans (Tom) |
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</para> |
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<para> |
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This bug involved a page status bit potentially not being set |
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correctly after a server crash. |
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This is particularly useful for <ulink |
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url="http://postgis.refractions.net/">PostGIS</ulink>. |
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</para> |
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</listitem> |
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<listitem> |
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<para> |
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Fix a typo that disabled <varname>commit_delay</> (Jeff Janes) |
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</para> |
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</listitem> |
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<listitem> |
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<para> |
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Output configuration file errors to <filename>postmaster.log</> if the |
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Output early-startup messages to <filename>postmaster.log</> if the |
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server is started in silent mode (Tom) |
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</para> |
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@ -173,6 +230,71 @@ |
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</para> |
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</listitem> |
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<listitem> |
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<para> |
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Remove translated FAQs (Peter) |
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</para> |
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<para> |
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They are now on the <ulink |
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url="http://wiki.postgresql.org/wiki/FAQ">wiki</ulink>. The |
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main FAQ was moved to the wiki some time ago. |
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</para> |
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</listitem> |
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<listitem> |
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<para> |
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Fix <application>pg_ctl</> to not go into an infinite loop if |
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<filename>postgresql.conf</> is empty (Jeff Davis) |
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</para> |
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</listitem> |
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<listitem> |
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<para> |
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Fix several errors in <application>pg_dump</>'s |
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<literal>--binary-upgrade</> mode (Bruce, Tom) |
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</para> |
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<para> |
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<literal>pg_dump --binary-upgrade</> is used by pg_migrator. |
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</para> |
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</listitem> |
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<listitem> |
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<para> |
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Fix <filename>contrib/xml2</>'s <function>xslt_process()</> to |
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properly handle the maximum number of parameters (twenty) (Tom) |
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</para> |
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</listitem> |
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<listitem> |
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<para> |
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Improve robustness of <application>libpq</>'s code to recover |
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from errors during <command>COPY FROM STDIN</> (Tom) |
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</para> |
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</listitem> |
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<listitem> |
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<para> |
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Avoid including conflicting readline and editline header files |
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when both libraries are installed (Zdenek Kotala) |
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</para> |
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</listitem> |
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<listitem> |
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<para> |
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Work around gcc bug that causes <quote>floating-point exception</> |
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instead of <quote>division by zero</> on some platforms (Tom) |
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</para> |
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</listitem> |
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<listitem> |
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<para> |
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Update time zone data files to <application>tzdata</> release 2009l |
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for DST law changes in Bangladesh, Egypt, Mauritius. |
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</para> |
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</listitem> |
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</itemizedlist> |
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</sect2> |
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Tom Lane
17 years ago