-<!-- $PostgreSQL: pgsql/doc/src/sgml/release-9.0.sgml,v 2.56 2010/09/15 17:45:57 tgl Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/release-9.0.sgml,v 2.57 2010/09/16 18:15:21 tgl Exp $ -->
+<!-- See header comment in release.sgml about typical markup -->
<sect1 id="release-9-0">
<title>Release 9.0</title>
<note>
<title>Release date</title>
- <simpara>2010-??-??</simpara>
+ <simpara>2010-09-20</simpara>
</note>
- <para>CURRENT AS OF 2010-08-24</para>
-
<sect2>
<title>Overview</title>
SCHEMA</></link> supports mass permissions changes on existing objects,
while <link linkend="SQL-ALTERDEFAULTPRIVILEGES"><command>ALTER DEFAULT
PRIVILEGES</></link> allows control of privileges for objects created in
- the future. Large objects (BLOBs) now support privilege management as
+ the future. Large objects (BLOBs) now support permissions management as
well.
</para>
</listitem>
<para>
Version 9.0 contains a number of changes that selectively break backwards
compatibility in order to support new features and code quality
- improvements. Also, users who make extensive use of PL/pgSQL,
- Point-In-Time Recovery (PITR), and Warm Standby should test their
- solutions because of slight user-visible changes in these areas.
+ improvements. In particular, users who make extensive use of PL/pgSQL,
+ Point-In-Time Recovery (PITR), or Warm Standby should test their
+ applications because of slight user-visible changes in those areas.
Observe the following incompatibilities:
</para>
<listitem>
<para>
- Allow setting of distinct statistics using <link
+ Allow setting of number-of-distinct-values statistics using <link
linkend="SQL-ALTERTABLE"><command>ALTER TABLE</></link>
(Robert Haas)
</para>
linkend="monitoring-stats-funcs-table"><function>pg_stat_reset_single_table_counters()</></link>
and <function>pg_stat_reset_single_function_counters()</>
to allow resetting the statistics counters for individual
- tables and indexes (Magnus Hagander)
+ tables and functions (Magnus Hagander)
</para>
</listitem>
<para>
Previously only per-database and per-role settings were possible,
not combinations. All role and database settings are now stored
- in the new <structname>pg_db_role_setting</> system table. A new
+ in the new <structname>pg_db_role_setting</> system catalog. A new
<application>psql</> command <literal>\drds</> shows these settings.
The legacy system views <structname>pg_roles</>,
<structname>pg_shadow</>, and <structname>pg_user</>
known to the server. This allows the server to correctly check that
superuser-only parameters are only set by superusers. Previously,
the <literal>SET</> would be allowed and then ignored at session start,
- making superuser-only custom parameters practically useless.
+ making superuser-only custom parameters much less useful than they
+ should be.
</para>
</listitem>
<listitem>
<para>
- Add Unicode surrogate pair (dual 16-bit) support to
+ Support Unicode surrogate pairs (dual 16-bit representation) in
<link
linkend="sql-syntax-strings-uescape"><literal>U&</></link>
strings and identifiers (Peter Eisentraut)
<listitem>
<para>
- Add support for copying all attributes in <command>CREATE
+ Add a shortcut for copying all properties in <command>CREATE
TABLE ... LIKE</> commands (Itagaki Takahiro)
</para>
</listitem>
<listitem>
<para>
- Support locale-specific <link
- linkend="functions-posix-regexp">regular expression</link>
- processing with <acronym>UTF-8</> server encoding (Tom Lane)
+ Allow function calls to supply parameter names and match them to named
+ parameters in the function definition (Pavel Stehule)
</para>
<para>
- Locale-specific regular expression functionality includes
- case-insensitive matching and locale-specific character classes.
- Previously, these features only worked correctly for
- non-<acronym>ASCII</> characters when using a single-byte server
- encoding (such as LATIN1). They will still misbehave in multi-byte
- encodings other than <acronym>UTF-8</>.
+ For example, if a function is defined to take parameters <literal>a</>
+ and <literal>b</>, it can be called with <literal>func(a := 7, b
+ := 12)</> or <literal>func(b := 12, a := 7)</>.
</para>
</listitem>
<listitem>
<para>
- Allow function calls to supply parameter names and match them to named
- parameters in the function definition (Pavel Stehule)
+ Support locale-specific <link
+ linkend="functions-posix-regexp">regular expression</link>
+ processing with <acronym>UTF-8</> server encoding (Tom Lane)
</para>
<para>
- For example, if a function is defined to take parameters <literal>a</>
- and <literal>b</>, it can be called with <literal>func(a := 7, b
- := 12)</> or <literal>func(b := 12, a := 7)</>.
+ Locale-specific regular expression functionality includes
+ case-insensitive matching and locale-specific character classes.
+ Previously, these features worked correctly for non-<acronym>ASCII</>
+ characters only if the database used a single-byte server encoding (such
+ as LATIN1). They will still misbehave in multi-byte encodings other
+ than <acronym>UTF-8</>.
</para>
</listitem>
rather than whenever the enclosing expression is reached. For
example, many people have tried to do this in triggers:
<programlisting>
-if TG_OP = 'INSERT' AND NEW.col1 = ... then
+if TG_OP = 'INSERT' and NEW.col1 = ... then
</programlisting>
This will now actually work as expected.
</para>
<listitem>
<para>
- Add <link linkend="APP-VACUUMDB"><command>vacuumdb</></link>
- <option>--analyze-only</> option to analyze without vacuuming
- (Bruce Momjian)
+ Add an <option>--analyze-only</> option to <link
+ linkend="APP-VACUUMDB"><command>vacuumdb</></link>, to analyze without
+ vacuuming (Bruce Momjian)
</para>
</listitem>
<listitem>
<para>
- Load SSL certificate chains (Tom Lane)
+ Load all SSL certificates given in the client certificate file
+ (Tom Lane)
</para>
<para>
<listitem>
<para>
Add the <link linkend="ecpg-descriptors"><command>DESCRIBE</>
- [
<literal>OUTPUT</>]</link> statement to <application>ecpg</>
+ [
<literal>OUTPUT</> ]</link> statement to <application>ecpg</>
(Boszormenyi Zoltan)
</para>
</listitem>
<listitem>
<para>
- Add an <application>ecpg</> function <link
- linkend="ecpg-library">ECPGtransactionStatus</link> to return the
- current transaction status (Bernd Helmle)
+ Add an <link linkend="ecpg-library">ECPGtransactionStatus</link>
+ function to return the current transaction status (Bernd Helmle)
</para>
</listitem>
</para>
<para>
- Thread-safe builds can be disabled with <link
+ The thread-safety option can be disabled with <link
linkend="configure"><literal>configure</></link>
<option>--disable-thread-safety</>.
</para>
<para>
These are similar to the existing <literal>all</>, <literal>install</>,
- and <literal>installcheck</> targets, but they also build
+ and <literal>installcheck</> targets, but they also build the
<acronym>HTML</> documentation, build and test <filename>contrib</>,
and test server-side languages and <application>ecpg</>.
</para>
<listitem>
<para>
- Add Makefile rules to build documentation as a single <acronym>HTML</>
- file or as a single plain-text file
+ Add Makefile rules to build the <productname>PostgreSQL</> documentation
+ as a single <acronym>HTML</> file or as a single plain-text file
(Peter Eisentraut, Bruce Momjian)
</para>
</listitem>
<para>
Existing calls will still work for the moment, but can be expected to
- break in 9.1 or later if not converted.
+ break in 9.1 or later if not converted to the new style.
</para>
</listitem>
</para>
</listitem>
- <listitem>
- <para>
- Allow the calling of parser hooks from <acronym>SPI</> and cached
- plans (Tom Lane)
- </para>
- </listitem>
-
<listitem>
<para>
Add a ProcessUtility hook so loadable modules can control utility
projects / postgresql / commitdiff