<!-- doc/src/sgml/release-9.1.sgml -->
-<!-- This is up-to-date with commits through 2010-09-01 -->
+<!-- This is up-to-date with commits through 2010-10-26 -->
<sect1 id="release-9-1-alpha">
<title>Release 9.1alpha1</title>
<listitem>
<para>
- <emphasis>Recognize functional dependency on primary
- keys</emphasis>
+ <emphasis>Add ALTER TYPE ... ADD/DROP/ALTER/RENAME ATTRIBUTE</emphasis>
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ <emphasis>Support triggers on views</emphasis>
+ </para>
+
+ <para>
+ This adds the SQL-standard concept of an INSTEAD OF trigger,
+ which is fired instead of performing a physical
+ insert/update/delete. The trigger function is passed the
+ entire old and/or new rows of the view, and must figure out
+ what to do to the underlying tables to implement the update.
+ So this feature can be used to implement updatable views
+ using trigger programming style rather than rule hacking.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ <emphasis>Allow WITH clauses to be attached to INSERT, UPDATE, DELETE
+ statements</emphasis>
+ </para>
+
+ <para>
+ This is not the hoped-for facility of using
+ INSERT/UPDATE/DELETE inside a WITH, but rather the other way
+ around.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ <emphasis>Allow new values to be added to an existing enum type</emphasis>
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Recognize functional dependency on primary
+ keys
</para>
<para>
This allows a table's other columns to be referenced without listing
<listitem>
<para>
- <emphasis>Add CREATE TABLE IF NOT EXISTS</emphasis>
+ Add CREATE TABLE IF NOT EXISTS
</para>
</listitem>
<listitem>
<para>
- <emphasis>Reduce lock levels of CREATE TRIGGER and some ALTER
- TABLE, CREATE RULE actions</emphasis>
+ <emphasis>Support MergeAppend plans, to allow sorted output
+ from append relations</emphasis>
+ </para>
+
+ <para>
+ This eliminates the former need to sort the output of an
+ Append scan when an ordered scan of an inheritance tree is
+ wanted. This should be particularly useful for fast-start
+ cases such as queries with LIMIT.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ <emphasis>Reduce the memory requirement for large ispell dictionaries</emphasis>
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ <emphasis>Teach CLUSTER to use seqscan-and-sort when it's faster than
+ indexscan</emphasis>
</para>
</listitem>
<listitem>
<para>
- <emphasis>Add some knowledge about prefix matches to
- tsmatchsel()</emphasis>
+ <emphasis>Improve GIN indexscan cost estimation</emphasis>
</para>
</listitem>
<listitem>
<para>
- <emphasis>Replace the naive HYPOT() macro with a
- standards-conformant hypotenuse function</emphasis>
+ <emphasis>Performance improvements in pg_upgrade for uses with many tables</emphasis>
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Reduce lock levels of CREATE TRIGGER and some ALTER
+ TABLE, CREATE RULE actions
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add some knowledge about prefix matches to
+ tsmatchsel()
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Replace the naive HYPOT() macro with a
+ standards-conformant hypotenuse function
</para>
</listitem>
<listitem>
<para>
- <emphasis>Change the default value of
+ Change the default value of
<literal>standard_conforming_strings</> to
- <literal>on</></emphasis>
+ <literal>on</>
</para>
<warning>
<para>
<listitem>
<para>
- <emphasis>Add <literal>log_file_mode</> parameter</emphasis>
+ Add <literal>log_file_mode</> parameter
</para>
<para>
This allows control of the file permissions set on log files created
<listitem>
<para>
- <emphasis>Add <literal>restart_after_crash</> parameter</emphasis>
+ Add <literal>restart_after_crash</> parameter
</para>
<para>
Normally, we automatically restart after a backend crash, but in
<listitem>
<para>
- <emphasis>Make EXPLAIN show the function call expression of a
- FunctionScan plan node, but only in VERBOSE mode</emphasis>
+ <emphasis>Allow pg_ctl to register the service in either AUTO or DEMAND start
+ type</emphasis>
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ <emphasis>Support host names and host key
+ word <literal>all</literal>
+ in <filename>pg_hba.conf</filename></emphasis>
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Make EXPLAIN show the function call expression of a
+ FunctionScan plan node, but only in VERBOSE mode
</para>
</listitem>
<listitem>
<para>
- <emphasis>Make EXPLAIN print PARAM_EXEC Params as
- the referenced expressions, rather than just $N</emphasis>
+ Make EXPLAIN print PARAM_EXEC Params as
+ the referenced expressions, rather than just $N
</para>
</listitem>
<listitem>
<para>
- <emphasis>Add vacuum and analyze counters to pg_stat_*_tables
- views</emphasis>
+ Add vacuum and analyze counters to pg_stat_*_tables
+ views
</para>
</listitem>
<listitem>
<para>
- <emphasis>Add stats functions and views to provide access to a
- transaction's own statistics counts</emphasis>
+ Add stats functions and views to provide access to a
+ transaction's own statistics counts
</para>
</listitem>
<listitem>
<para>
- <emphasis>Add server authentication over Unix-domain
- sockets</emphasis>
+ <emphasis>Add SECURITY LABEL command</emphasis>
+ </para>
+ <para>
+ This is intended as infrastructure to support integration
+ with label-based mandatory access control systems such as
+ SE-Linux.
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add server authentication over Unix-domain
+ sockets
</para>
<para>
This adds a libpq connection parameter <literal>requirepeer</> that
<listitem>
<para>
- <emphasis>Add string functions: concat(), concat_ws(), left(),
- right(), and reverse()</emphasis>
+ <emphasis>Accept <literal>public</literal> as a pseudo-role
+ name in <literal>has_table_privilege()</literal> and friends
+ to see if a particular privilege has been granted to
+ <literal>PUBLIC</literal></emphasis>
</para>
</listitem>
<listitem>
<para>
- <emphasis>Add three-parameter forms of array_to_string and
- string_to_array</emphasis>
+ Add string functions: concat(), concat_ws(), left(),
+ right(), and reverse()
</para>
</listitem>
<listitem>
<para>
- <emphasis>Add XMLEXISTS function</emphasis>
+ Add three-parameter forms of array_to_string and
+ string_to_array
</para>
</listitem>
<listitem>
<para>
- <emphasis>Add xpath_exists() function</emphasis>
+ Add XMLEXISTS function
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add xpath_exists() function
</para>
<para>
This is equivalent to XMLEXISTS except that it offers support for
<listitem>
<para>
- <emphasis>Add xml_is_well_formed, xml_is_well_formed_document,
+ Add xml_is_well_formed, xml_is_well_formed_document,
xml_is_well_formed_content functions to the core XML
- code</emphasis>
+ code
</para>
<para>
These supersede a version previously offered by contrib/xml2.
<listitem>
<para>
- <emphasis>Allow numeric to use a more compact, 2-byte header in
- many cases</emphasis>
+ Allow numeric to use a more compact, 2-byte header in
+ many cases
</para>
</listitem>
<listitem>
<para>
- <emphasis>Add support for dividing money by money (yielding a
- float8 result) and for casting between money and numeric</emphasis>
+ Add support for dividing money by money (yielding a
+ float8 result) and for casting between money and numeric
</para>
</listitem>
<listitem>
<para>
- <emphasis>Add options to force quoting of all
- identifiers</emphasis>
+ Add options to force quoting of all
+ identifiers
</para>
<para>
This includes a quote_all_identifiers parameter which affects the
<listitem>
<para>
- <emphasis>Add \conninfo command to psql, to show current connection
- info</emphasis>
+ Add \conninfo command to psql, to show current connection
+ info
</para>
</listitem>
<listitem>
<para>
- <emphasis>Extend psql's \e and \ef commands so that a line number
+ Extend psql's \e and \ef commands so that a line number
can be specified, and the editor's cursor will be initially placed
- on that line</emphasis>
+ on that line
</para>
<para>
To avoid assumptions about what switch the user's editor takes for
<listitem>
<para>
- <emphasis>Add a \sf (show function) command to psql, for those
+ Add a \sf (show function) command to psql, for those
times when you need to look at a function but don't wish to fire up
- an editor</emphasis>
+ an editor
</para>
</listitem>
<listitem>
<para>
- <emphasis>Make psql distinguish between unique indices and unique
- constraints in \d printout</emphasis>
+ Make psql distinguish between unique indices and unique
+ constraints in \d printout
</para>
</listitem>
<listitem>
<para>
- <emphasis>Modify the handling of RAISE without parameters so that
+ Modify the handling of RAISE without parameters so that
the error it throws can be caught in the same places that could
- catch an ordinary RAISE ERROR in the same location</emphasis>
+ catch an ordinary RAISE ERROR in the same location
</para>
<para>
The previous coding insisted on throwing the error from the block
<listitem>
<para>
- <emphasis>Remove ancient PL/pgSQL line numbering hack</emphasis>
+ Remove ancient PL/pgSQL line numbering hack
</para>
<para>
PL/pgSQL used to count the second line of the function body as
<listitem>
<para>
- <emphasis>Add the ability to compute per-statement latencies (ie,
- average execution times) to pgbench</emphasis>
+ <emphasis>Updates to contrib/isn ISBN tables</emphasis>
+ </para>
+ </listitem>
+
+ <listitem>
+ <para>
+ Add the ability to compute per-statement latencies (ie,
+ average execution times) to pgbench
</para>
</listitem>
<listitem>
<para>
- <emphasis>Teach levenshtein() about multi-byte
- characters</emphasis>
+ Teach levenshtein() about multi-byte
+ characters
</para>
</listitem>
<listitem>
<para>
- <emphasis>Add btree_gist support for searching on <quote>not
- equals</quote></emphasis>
+ Add btree_gist support for searching on <quote>not
+ equals</quote>
</para>
</listitem>
<listitem>
<para>
- <emphasis>Add ssl_cipher() and ssl_version() functions to
- contrib/sslinfo</emphasis>
+ Add ssl_cipher() and ssl_version() functions to
+ contrib/sslinfo
</para>
</listitem>
<listitem>
<para>
- <emphasis>Remove the arbitrary (and undocumented) limit on the
+ Remove the arbitrary (and undocumented) limit on the
number of parameter=value pairs that can be handled by
- xslt_process()</emphasis>
+ xslt_process()
</para>
</listitem>
<listitem>
<para>
- <emphasis>Include the backend ID in the relpath of temporary
- relations</emphasis>
+ Include the backend ID in the relpath of temporary
+ relations
</para>
<para>
This allows us to reliably remove all leftover temporary relation
<listitem>
<para>
- <emphasis>Rewrite COMMENT ON <replaceable>object</> code for better
- modularity, and add necessary locking</emphasis>
+ Rewrite COMMENT ON <replaceable>object</> code for better
+ modularity, and add necessary locking
</para>
</listitem>
<listitem>
<para>
- <emphasis>Add a hook in ExecCheckRTPerms() for eventual use by
- external security-checking modules</emphasis>
+ Add a hook in ExecCheckRTPerms() for eventual use by
+ external security-checking modules
</para>
</listitem>
<listitem>
<para>
- <emphasis>Standardize names and calling conventions of
- get_whatever_oid functions</emphasis>
+ Standardize names and calling conventions of
+ get_whatever_oid functions
</para>
</listitem>
<listitem>
<para>
- <emphasis>Make NestLoop plan nodes pass outer-relation variables
+ Make NestLoop plan nodes pass outer-relation variables
into their inner relation using the general PARAM_EXEC executor
parameter mechanism, rather than the ad-hoc kluge of passing the
- outer tuple down through ExecReScan</emphasis>
+ outer tuple down through ExecReScan
</para>
</listitem>
<listitem>
<para>
- <emphasis>Make details of the Numeric representation private to
- numeric.c</emphasis>
+ Make details of the Numeric representation private to
+ numeric.c
</para>
</listitem>
<listitem>
<para>
- <emphasis>Suppress some compiler warnings from
- <literal>clang</></emphasis>
+ Suppress some compiler warnings from
+ <literal>clang</>
</para>
</listitem>
projects / postgresql / commitdiff