Sync release notes with CVS HEAD; various editorial improvements.
This commit is contained in:
Tom Lane
parent
265f904d8f
commit
7cac32534f
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@ -1,4 +1,4 @@
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<!-- $PostgreSQL: pgsql/doc/src/sgml/release.sgml,v 1.557 2007/11/30 03:27:48 momjian Exp $ -->
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<!-- $PostgreSQL: pgsql/doc/src/sgml/release.sgml,v 1.558 2007/12/02 03:47:11 tgl Exp $ -->
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<!--
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Typical markup:
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@ -41,7 +41,7 @@ do it for earlier branch release files.
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<note>
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<title>Release date</title>
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<simpara>2007-12-??</simpara>
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<para>CURRENT AS OF 2007-11-29</>
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<para>CURRENT AS OF 2007-12-01</>
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</note>
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<sect2>
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@ -380,8 +380,8 @@ current_date < 2017-11-17
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<listitem>
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<para>
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<command>ALTER SEQUENCE</> no longer affects <function>currval()</>
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(Tom)
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<command>ALTER SEQUENCE</> no longer affects the sequence's
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<function>currval()</> state (Tom)
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</para>
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</listitem>
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@ -545,6 +545,23 @@ current_date < 2017-11-17
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</para>
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</listitem>
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<listitem>
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<para>
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Disallow database encodings that are inconsistent with the server's
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locale setting (Tom)
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</para>
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<para>
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On most platforms, <literal>C</> locale is the only locale that
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will work with any database encoding. Other locale settings imply
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a specific encoding and will misbehave if the database encoding
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is something different. (Typical symptoms include bogus textual
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sort order and wrong results from <function>upper()</> or
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<function>lower()</>.) The server now rejects attempts to create
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databases that have an incompatible encoding.
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</para>
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</listitem>
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<listitem>
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<para>
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Ensure that <function>chr()</function> cannot create
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@ -738,6 +755,19 @@ current_date < 2017-11-17
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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 incrementing the command counter after a read-only command (Tom)
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</para>
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<para>
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There was formerly a hard limit of 2<superscript>32</>
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(4 billion) commands per transaction. Now only commands that
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actually changed the database count, so while this limit still
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exists, it should be significantly less annoying.
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</para>
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</listitem>
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<listitem>
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<para>
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Create a dedicated <acronym>WAL</> writer process to off-load
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@ -814,6 +844,12 @@ current_date < 2017-11-17
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</para>
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</listitem>
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<listitem>
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<para>
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Speed up operator lookup for cases with non-exact datatype matches (Tom)
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</para>
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</listitem>
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</itemizedlist>
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</sect3>
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@ -900,6 +936,40 @@ current_date < 2017-11-17
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</para>
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</listitem>
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<listitem>
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<para>
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Guard against a very-low-probability data loss scenario by preventing
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re-use of a deleted table's relfilenode until after the next
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checkpoint (Heikki)
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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 <command>CREATE CONSTRAINT TRIGGER</>
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to convert old-style foreign key trigger definitions into regular
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foreign key constraints (Tom)
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</para>
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<para>
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This will ease porting of foreign key constraints carried forward from
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pre-7.3 databases, if they were never converted using
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<filename>contrib/adddepend</>.
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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 <literal>DEFAULT NULL</> to override inherited defaults (Tom)
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</para>
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<para>
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<literal>DEFAULT NULL</> was formerly considered a noise phrase, but it
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should (and now does) override non-null defaults that would otherwise
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be inherited from a parent table or domain.
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</para>
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</listitem>
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<listitem>
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<para>
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Add new encodings EUC_JIS_2004 and SHIFT_JIS_2004 (Tatsuo)
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@ -914,7 +984,12 @@ current_date < 2017-11-17
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<para>
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Change server startup log message from <quote>database system is
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ready</quote> to <quote>database system is ready to accept
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connections</quote>
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connections</quote>, and adjust its timing
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</para>
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<para>
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The message now appears only when the postmaster is really ready
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to accept connections.
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</para>
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</listitem>
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@ -995,8 +1070,8 @@ current_date < 2017-11-17
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</para>
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<para>
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CSV-format log files can be loaded into a database table for subsequent
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analysis.
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CSV-format log files can easily be loaded into a database table for
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subsequent analysis.
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</para>
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</listitem>
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@ -1066,7 +1141,7 @@ current_date < 2017-11-17
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<listitem>
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<para>
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Fix pgstats counting of live and dead tuples to recognize that
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Fix statistical counting of live and dead tuples to recognize that
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committed and aborted transactions have different effects (Tom)
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</para>
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</listitem>
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@ -1240,15 +1315,27 @@ current_date < 2017-11-17
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Create a general mechanism that supports casts to and from the
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standard string types (<type>TEXT</type>, <type>VARCHAR</type>,
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<type>CHAR</type>) for <emphasis>every</emphasis> datatype, by
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invoking the datatype's I/O functions (Tom) XXX examples?
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invoking the datatype's I/O functions (Tom)
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</para>
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<para>
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Previously, such casts were available only for types that had
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specialized function(s) for the purpose.
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These new casts are assignment-only in the to-string direction,
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explicit-only in the other direction, and therefore should create no
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surprising behavior. Various
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datatype-specific casting functions that were equivalent to this
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behavior were removed.
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surprising behavior.
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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 <literal>UNION</> and related constructs to return a domain
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type, when all inputs are of that domain type (Tom)
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</para>
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<para>
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Formerly, the output would be considered to be of the domain's base
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type.
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</para>
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</listitem>
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@ -1263,8 +1350,7 @@ current_date < 2017-11-17
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comparisons, if the data types have compatible hash functions.
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Currently, cross-data-type hashing support exists for
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<type>smallint</type>/<type>integer</type>/<type>bigint</type>,
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and for <type>float4</type>/<type>float8</type>. XXX how do you do
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hash aggregate two different data types
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and for <type>float4</type>/<type>float8</type>.
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</para>
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</listitem>
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@ -1360,8 +1446,8 @@ current_date < 2017-11-17
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<para>
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This allows a user-defined type to take a modifier, like
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<type>ssnum(7)</>. Previously only
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predefined system data types could have modifiers.
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<type>ssnum(7)</>. Previously only built-in
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data types could have modifiers.
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</para>
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</listitem>
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@ -1428,7 +1514,7 @@ current_date < 2017-11-17
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<listitem>
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<para>
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Implement <command>CREATE TABLE LIKE ... INCLUDING
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INDEXES</command> (Trevor Hardcastle, Nikhil S, Neil)
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INDEXES</command> (Trevor Hardcastle, Nikhil Sontakke, Neil)
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</para>
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</listitem>
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@ -1623,7 +1709,7 @@ current_date < 2017-11-17
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snapshot that does not change during the transaction. This function
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allows the snapshot to be discarded and a new snapshot loaded during
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the next statistics query. This is particularly useful for PL/PgSQL
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functions which are confined to a single transaction.
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functions, which are confined to a single transaction.
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</para>
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</listitem>
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@ -1769,6 +1855,17 @@ current_date < 2017-11-17
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</para>
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</listitem>
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<listitem>
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<para>
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Make qualification of variables with block labels work properly (Tom)
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</para>
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<para>
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Formerly, outer-level block labels could unexpectedly interfere with
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recognition of inner-level record or row references.
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</para>
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</listitem>
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<listitem>
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<para>
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Tighten requirements for <literal>FOR</literal> loop
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@ -1779,7 +1876,6 @@ current_date < 2017-11-17
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Prevent non-positive <literal>STEP</> values, and handle
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loop overflows.
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</para>
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</listitem>
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<listitem>
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@ -1800,7 +1896,7 @@ current_date < 2017-11-17
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<para>
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Allow type-name arguments to PL/Perl
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<function>spi_prepare()</function> to be data type aliases in
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addition to names in <literal>pg_type</literal> (Andrew)
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addition to names found in <literal>pg_type</literal> (Andrew)
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</para>
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</listitem>
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@ -1808,14 +1904,14 @@ current_date < 2017-11-17
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<para>
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Allow type-name arguments to PL/Python
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<function>plpy.prepare()</function> to be data type aliases in
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addition to names in <literal>pg_type</literal> (Andrew)
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addition to names found in <literal>pg_type</literal> (Andrew)
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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 type-name arguments to PL/Tcl <function>spi_prepare</> to
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be data type aliases in addition to names in
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be data type aliases in addition to names found in
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<literal>pg_type</literal> (Andrew)
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</para>
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</listitem>
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@ -1920,6 +2016,13 @@ current_date < 2017-11-17
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</para>
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</listitem>
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<listitem>
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<para>
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Correctly detect and report errors while reading a <literal>-f</>
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input file (Peter)
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</para>
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</listitem>
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</itemizedlist>
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</sect3>
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@ -1993,19 +2096,21 @@ current_date < 2017-11-17
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<listitem>
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<para>
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Add <application>pg_ctl</> timeout parameter (Bruce)
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Add a <literal>-t</> (timeout) parameter to <application>pg_ctl</>
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(Bruce)
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</para>
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<para>
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This controls how long <application>pg_ctl</> will wait when waiting
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for server startup or shutdown.
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for server startup or shutdown. Formerly the timeout was hard-wired
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as 60 seconds.
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</para>
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</listitem>
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<listitem>
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<para>
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Add <application>pg_ctl</> option to control generation
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of core dumps (Andrew)
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Add a <application>pg_ctl</> option to control generation
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of server core dumps (Andrew)
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</para>
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</listitem>
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@ -2082,7 +2187,7 @@ current_date < 2017-11-17
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<para>
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If this returns true after a failed connection attempt, a client
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application should prompt the user for a password. In the past
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applications have had to check for a specific error messages to
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applications have had to check for a specific error message string to
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decide whether a password is needed; that approach is now
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deprecated.
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</para>
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@ -2120,7 +2225,7 @@ current_date < 2017-11-17
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<listitem>
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<para>
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Make ecpg libraries export only necessary API symbols (Michael)
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Make the ecpg libraries export only necessary API symbols (Michael)
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</para>
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</listitem>
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@ -2147,6 +2252,13 @@ current_date < 2017-11-17
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</para>
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</listitem>
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<listitem>
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<para>
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Drastically reduce postmaster's memory usage when it has many child
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processes (Magnus)
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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 regression tests to be started by an administrative
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@ -2168,6 +2280,17 @@ current_date < 2017-11-17
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<title>Server Programming Interface (<acronym>SPI</>)</title>
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<itemizedlist>
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<listitem>
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<para>
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Add cursor-related functionality in SPI (Pavel Stehule)
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</para>
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<para>
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Allow access to the cursor-related planning options, and add
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<command>FETCH</>/<command>MOVE</> routines.
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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 execution of cursor commands through
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@ -2182,7 +2305,7 @@ current_date < 2017-11-17
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<listitem>
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<para>
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SPI plan pointers are now <literal>SPIPlanPtr</> instead of
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SPI plan pointers are now declared as <literal>SPIPlanPtr</> instead of
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<literal>void *</> (Tom)
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</para>
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@ -2192,17 +2315,6 @@ current_date < 2017-11-17
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</para>
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</listitem>
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<listitem>
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<para>
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Add cursor-related functionality in SPI (Pavel Stehule)
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</para>
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<para>
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Allow access to the cursor-related planning options, and add
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<command>FETCH</>/<command>MOVE</> routines.
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</para>
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</listitem>
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</itemizedlist>
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</sect3>
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@ -2213,16 +2325,16 @@ current_date < 2017-11-17
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<listitem>
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<para>
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Add <application>configure</> <literal>--enable-profiling</>
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Add <application>configure</> option <literal>--enable-profiling</>
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to enable code profiling (works only with <application>gcc</>)
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(Korry Douglas and Nikhil S)
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(Korry Douglas and Nikhil Sontakke)
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</para>
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</listitem>
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<listitem>
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<para>
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Add <application>configure</> <literal>--with-system-tzdata</>
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to use the operating system time zone database (Peter)
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Add <application>configure</> option <literal>--with-system-tzdata</>
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to use the operating system's time zone database (Peter)
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</para>
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</listitem>
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@ -2241,8 +2353,8 @@ current_date < 2017-11-17
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</para>
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<para>
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Documentions builds will now build indexes by default, unless
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<literal>draft</> is used.
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Unless <literal>draft</> is used, the documentation build will
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now be repeated if necessary to ensure the index is up-to-date.
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</para>
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</listitem>
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@ -2311,7 +2423,8 @@ current_date < 2017-11-17
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<listitem>
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<para>
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Add tas() support for Renesas' M32R processor (Kazuhiro Inaoka)
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Add <function>tas()</> support for Renesas' M32R processor
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(Kazuhiro Inaoka)
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</para>
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</listitem>
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@ -2396,6 +2509,16 @@ current_date < 2017-11-17
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</para>
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</listitem>
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<listitem>
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<para>
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Add <filename>contrib/dict_int</filename>,
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<filename>contrib/dict_xsyn</filename>, and
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<filename>contrib/test_parser</filename> modules to provide
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sample add-on text search dictionary templates and parsers
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(Sergey Karpov)
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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 <application>contrib/pgbench</> to set the fillfactor (Pavan
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