Skip to content

P
Postgres FD Implementation
Commit 1037ab75 authored by Bruce Momjian's avatar Bruce Momjian
Browse files
Options

More release notes wording cleanups.

parent 52769508
Hide whitespace changes
Inline Side-by-side
Showing with 85 additions and 95 deletions
doc/src/sgml/release.sgml
View file @ 1037ab75
<!-- $PostgreSQL: pgsql/doc/src/sgml/release.sgml,v 1.545 2007/11/19 03:47:14 tgl Exp $ -->
<!-- $PostgreSQL: pgsql/doc/src/sgml/release.sgml,v 1.546 2007/11/20 01:13:00 momjian Exp $ -->
<!--
Typical markup:
......@@ -165,7 +165,7 @@ do it for earlier branch release files.
<listitem>
<para>
Distributed checkpoints prevent checkpoint I/O spikes
Distributed checkpoints prevent checkpoint I/O spikes
</para>
</listitem>
......@@ -185,14 +185,14 @@ do it for earlier branch release files.
<listitem>
<para>
Using non-persistent transaction IDs for
read-only transactions reduces overhead
Using non-persistent transaction IDs for read-only transactions
reduces overhead
</para>
</listitem>
<listitem>
<para>
Per-field and per-row storage overhead have been reduced
Per-field and per-row storage overhead has been reduced
</para>
</listitem>
......@@ -626,8 +626,8 @@ current_date &lt; 2017-11-17
<listitem>
<para>
Reduce overhead by using non-persistent transaction IDs for
read-only transactions (Florian Pflug)
Using non-persistent transaction IDs for read-only transactions
reduces overhead (Florian Pflug)
</para>
<para>
......@@ -664,14 +664,14 @@ current_date &lt; 2017-11-17
<listitem>
<para>
Prevent large sequential scans from forcing out more frequently
used cached pages (Simon, Heikki, Tom)
Large sequential scans no longer force out frequently used
cached pages (Simon, Heikki, Tom)
</para>
</listitem>
<listitem>
<para>
Allow large sequential scans to use cached pages from other
Large sequential scans can share disk reads with other
concurrent sequential scans (Jeff Davis)
</para>
......@@ -686,7 +686,7 @@ current_date &lt; 2017-11-17
<listitem>
<para>
Allow <literal>ORDER BY ... LIMIT</> to be done without sorting
<literal>ORDER BY ... LIMIT</> can be done without sorting
(Greg Stark)
</para>
......@@ -706,7 +706,7 @@ current_date &lt; 2017-11-17
</para>
<para>
This reduces overhead for short transactions, but may sometimes
This reduces overhead for short transactions, but might sometimes
increase the delay before statistics are tallied.
</para>
</listitem>
......@@ -1135,7 +1135,7 @@ current_date &lt; 2017-11-17
<listitem>
<para>
Support updatable cursors (Arul Shaji, Tom)
Updatable cursors (Arul Shaji, Tom)
</para>
<para>
......@@ -1156,7 +1156,7 @@ current_date &lt; 2017-11-17
Create a general mechanism that supports casts to and from the
standard string types (<type>TEXT</type>, <type>VARCHAR</type>,
<type>CHAR</type>) for <emphasis>every</emphasis> datatype, by
invoking the datatype's I/O functions (Tom)
invoking the datatype's I/O functions (Tom) XXX examples?
</para>
<para>
......@@ -1179,7 +1179,8 @@ current_date &lt; 2017-11-17
comparisons, if the data types have compatible hash functions.
Currently, cross-data-type hashing support exists for
<type>smallint</type>/<type>integer</type>/<type>bigint</type>,
and for <type>float4</type>/<type>float8</type>.
and for <type>float4</type>/<type>float8</type>. XXX how do you do
hash aggregate two different data types
</para>
</listitem>
......@@ -1197,8 +1198,8 @@ current_date &lt; 2017-11-17
<listitem>
<para>
Improve performance when planning large inheritance trees in which
most tables are excluded by constraints (Tom)
Improve performance when planning large inheritance trees in
cases where most tables are excluded by constraints (Tom)
</para>
</listitem>
......@@ -1253,14 +1254,15 @@ current_date &lt; 2017-11-17
<listitem>
<para>
Add <literal>COST</literal> and <literal>ROWS</literal> options to
<command>CREATE/ALTER FUNCTION</command> (Tom)
<command>CREATE/ALTER FUNCTION</command> now supports
<literal>COST</literal> and <literal>ROWS</literal> options (Tom)
</para>
<para>
This allows simple control over the estimated cost of a function
call and over the estimated number of rows returned by a
set-returning function.
<literal>COST</literal> allows specification of the cost of a
function call. <literal>ROWS</literal> allows specification of
the average number or rows returned by a set-returning function.
These values are used by the optimizer in choosing the best plan.
</para>
</listitem>
......@@ -1284,7 +1286,7 @@ current_date &lt; 2017-11-17
</para>
<para>
This allows a user-defined type to take a modifier, as in
This allows a user-defined type to take a modifier, like
<type>ssnum(7)</>. Previously only
predefined system data types could have modifiers.
</para>
......@@ -1312,12 +1314,12 @@ current_date &lt; 2017-11-17
<listitem>
<para>
Non-superuser database owners now have privileges to add trusted
procedural languages in their databases by default (Jeremy Drake)
Non-superuser database owners now are able to add trusted procedural
languages to their databases by default (Jeremy Drake)
</para>
<para>
While this is reasonably safe, some administrators may wish to
While this is reasonably safe, some administrators might wish to
revoke the privilege. It is controlled by
<structname>pg_pltemplate</>.<structfield>tmpldbacreate</>.
</para>
......@@ -1377,7 +1379,7 @@ current_date &lt; 2017-11-17
<para>
Formerly, <command>CLUSTER</command> would discard all tuples
that were committed dead, even if there were still transactions
that should be able to see them under the MVCC visibility rules.
that should be able to see them under MVCC visibility rules.
</para>
</listitem>
......@@ -1396,14 +1398,14 @@ current_date &lt; 2017-11-17
<listitem>
<para>
Fix <command>EXPLAIN</command> so it can show more complex plans
accurately (Tom)
Fix <command>EXPLAIN</command> so it can show complex plans
more accurately (Tom)
</para>
<para>
References to subplan outputs are now always shown correctly,
instead of using <literal>?column<replaceable>N</>?</literal>
when things got too complicated.
for complicated cases.
</para>
</listitem>
......@@ -1425,7 +1427,7 @@ current_date &lt; 2017-11-17
</para>
<para>
Formerly, these commands accepted <quote>schema.relation</> but
Formerly, these commands accepted <literal>schema.relation</> but
ignored the schema part, which was confusing.
</para>
</listitem>
......@@ -1460,7 +1462,7 @@ current_date &lt; 2017-11-17
<listitem>
<para>
Add Universally Unique Identifier (<type>UUID</>) data type (Gevik
Universally Unique Identifier (<type>UUID</>) data type (Gevik
Babakhani, Neil)
</para>
......@@ -1482,22 +1484,23 @@ current_date &lt; 2017-11-17
<listitem>
<para>
Add new regexp functions <function>regexp_matches()</function>,
Add new regular expression functions
<function>regexp_matches()</function>,
<function>regexp_split_to_array()</function>, and
<function>regexp_split_to_table()</function> (Jeremy Drake, Neil)
</para>
<para>
These functions provide extraction of regexp subexpressions
and allow splitting a string using a POSIX
regular expression.
These functions provide extraction of regular expression
subexpressions and allow splitting a string using a POSIX regular
expression.
</para>
</listitem>
<listitem>
<para>
Add <function>lo_truncate()</function> function for large object
truncation (Kris Jurka)
Add <function>lo_truncate()</function> for large object truncation
(Kris Jurka)
</para>
</listitem>
......@@ -1516,12 +1519,11 @@ current_date &lt; 2017-11-17
</para>
<para>
The first request for statistics in a transaction takes a
statistics snapshot that doesn't change during the transaction.
This function allows the snapshot to be discarded and a new
snapshot loaded during the next statistics query. This is
particularly useful for PL/PgSQL functions which are confined to
a single transaction.
The first request for statistics in a transaction takes a statistics
snapshot that does not change during the transaction. This function
allows the snapshot to be discarded and a new snapshot loaded during
the next statistics query. This is particularly useful for PL/PgSQL
functions which are confined to a single transaction.
</para>
</listitem>
......@@ -1541,7 +1543,7 @@ current_date &lt; 2017-11-17
<para>
Add <literal>ID</> (ISO day of week) and <literal>IDDD</> (ISO
day of year) format codes for <function>to_char()</>,
<function>to_date()</> and <function>to_timestamp()</> (Brendan
<function>to_date()</>, and <function>to_timestamp()</> (Brendan
Jurd)
</para>
</listitem>
......@@ -1560,17 +1562,16 @@ current_date &lt; 2017-11-17
<listitem>
<para>
Fix off-by-one conversion in
Fix off-by-one conversion error in
<function>to_date()</function>/<function>to_timestamp()</function>
<literal>D</> fields
(Bruce)
<literal>D</> (non-ISO day of week) fields (Bruce)
</para>
</listitem>
<listitem>
<para>
Fix <type>float4</type>/<type>float8</type> to handle
<literal>Infinity</> and <literal>NAN</> (not a number)
<literal>Infinity</> and <literal>NAN</> (Not A Number)
consistently (Bruce)
</para>
......@@ -1712,34 +1713,28 @@ current_date &lt; 2017-11-17
</sect3>
<sect3>
<title>PL/Perl Server-Side Language Changes</title>
<title>Changes to Other Server-Side Languages</title>
<itemizedlist>
<listitem>
<para>
Allow type-name arguments to <function>spi_prepare()</function> to
be data type aliases in addition to names in
<literal>pg_type</literal> (Andrew)
Allow type-name arguments to PL/Perl
<function>spi_prepare()</function> to be data type aliases in
addition to names in <literal>pg_type</literal> (Andrew)
</para>
</listitem>
</itemizedlist>
</sect3>
<sect3>
<title>PL/Python Server-Side Language Changes</title>
<itemizedlist>
<listitem>
<para>
Enable PL/PythonU to compile on Python 2.5 (Marko Kreen)
Allow type-name arguments to PL/Python
<function>plpy.prepare()</function> to be data type aliases in
addition to names in <literal>pg_type</literal> (Andrew)
</para>
</listitem>
<listitem>
<para>
Allow type-name arguments to <function>plpy.prepare()</function> to
Allow type-name arguments to PL/Tcl <function>spi_prepare</> to
be data type aliases in addition to names in
<literal>pg_type</literal> (Andrew)
</para>
......@@ -1747,30 +1742,20 @@ current_date &lt; 2017-11-17
<listitem>
<para>
Support a true boolean type in compatible Python versions
(Python 2.3 and later) (Marko Kreen)
Enable PL/PythonU to compile on Python 2.5 (Marko Kreen)
</para>
</listitem>
</itemizedlist>
</sect3>
<sect3>
<title>PL/Tcl Server-Side Language Changes</title>
<itemizedlist>
<listitem>
<para>
Allow type-name arguments to <function>spi_prepare</> to
be data type aliases in addition to names in
<literal>pg_type</literal> (Andrew)
Support a true PL/Python boolean type in compatible Python versions
(Python 2.3 and later) (Marko Kreen)
</para>
</listitem>
<listitem>
<para>
Fix problems with thread-enabled <filename>libtcl</> spawning
Fix PL/Tcl problems with thread-enabled <filename>libtcl</> spawning
multiple threads within the backend (Steve Marshall, Paul Bayer,
Doug Knight)
</para>
......@@ -1797,22 +1782,22 @@ current_date &lt; 2017-11-17
<listitem>
<para>
Show aggregate return types in <literal>\da</literal> output
(Greg Sabino Mullane)
In <literal>\d</literal> patterns, always match <literal>$</literal>
literally (Tom)
</para>
</listitem>
<listitem>
<para>
Add the function's volatility to the output of
<literal>\df+</literal> (Neil)
Show aggregate return types in <literal>\da</literal> output
(Greg Sabino Mullane)
</para>
</listitem>
<listitem>
<para>
In <literal>\d</literal> patterns, always match <literal>$</literal>
literally (Tom)
Add the function's volatility to the output of
<literal>\df+</literal> (Neil)
</para>
</listitem>
......@@ -1899,7 +1884,7 @@ current_date &lt; 2017-11-17
<listitem>
<para>
Improve performance when a database has many thousands of objects (Tom)
Improve performance when a database has thousands of objects (Tom)
</para>
</listitem>
......@@ -1921,10 +1906,15 @@ current_date &lt; 2017-11-17
<listitem>
<para>
Enable server core dump generation in <application>pg_regress</> and
provide an option to do so in <application>pg_ctl</>, where
supported by the operating system
(Andrew)
Enable server core dump generation in <application>pg_regress</>
on supported operating systems (Andrew)
</para>
</listitem>
<listitem>
<para>
Add <application>pg_ctl</> <literal> option to control generation
of core dumps (Andrew)
</para>
</listitem>
......@@ -2010,11 +2000,11 @@ current_date &lt; 2017-11-17
</para>
<para>
If this returns true after a connection attempt fails, a client
If this returns true after a failed connection attempt, a client
application should prompt the user for a password. In the past
applications have had to check for a specific error message
string to decide whether a password is needed; that approach
is now deprecated.
applications have had to check for a specific error messages to
decide whether a password is needed; that approach is now
deprecated.
</para>
</listitem>
......@@ -2050,7 +2040,7 @@ current_date &lt; 2017-11-17
<listitem>
<para>
Make ecpg libraries export only intended API symbols (Michael)
Make ecpg libraries export only necessary API symbols (Michael)
</para>
</listitem>
......@@ -2086,7 +2076,7 @@ current_date &lt; 2017-11-17
<listitem>
<para>
Add native shared memory implementation for Windows (Magnus)
Add native shared memory implementation (Magnus)
</para>
</listitem>
......@@ -2211,7 +2201,7 @@ current_date &lt; 2017-11-17
<listitem>
<para>
Create hooks to let a loadable plugin monitor (or even replace) the
Create hooks to let an external plugin monitor (or even replace) the
planner and create plans for hypothetical situations (Gurjeet
Singh, Tom)
</para>
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment