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9.3 release notes: move compatibility items into their own section
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‎doc/src/sgml/release-9.3.sgml‎

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@@ -41,8 +41,111 @@
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</para>
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<sect3>
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<title>ADD HERE</title>
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<para>here</para>
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<title>Server Settings</title>
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<itemizedlist>
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<listitem>
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<para>
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Rename <varname>replication_timeout</> to <link
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linkend="guc-wal-sender-timeout"><varname>wal_sender_timeout</></link>
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(Amit Kapila)
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</para>
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<para>
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This setting controls the <link
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linkend="wal"><acronym>WAL</></link> sender timeout.
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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 grouping of sessions waiting for <link
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linkend="guc-commit-delay"><varname>commit_delay</></link>
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(Peter Geoghegan)
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</para>
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<para>
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This improves the usefulness and behavior of
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<varname>commit_delay</>.
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</para>
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</listitem>
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<listitem>
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<para>
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Require superuser privileges to set <link
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linkend="guc-commit-delay"><varname>commit_delay</></link>
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because it can now potentially delay other sessions (Simon Riggs)
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</para>
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</listitem>
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<listitem>
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<para>
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Have <quote>session id</> (<literal>%c</>) in <link
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linkend="guc-log-line-prefix"><varname>log_line_prefix</></link>
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always output four hex digits after the period (Bruce Momjian)
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</para>
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</listitem>
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</itemizedlist>
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</sect3>
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<sect3>
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<title>Other</title>
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<itemizedlist>
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<listitem>
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<para>
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Throw an error if expiring tuple is again updated or deleted (Kevin Grittner)
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DETAILS?
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</para>
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</listitem>
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<listitem>
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<para>
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Change <link linkend="SQL-CREATETABLE"><literal>ON UPDATE
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SET NULL/SET DEFAULT</></link> foreign key actions to affect
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all referenced columns, not just those referenced in the
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<command>UPDATE</> (Tom Lane)
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</para>
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<para>
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Previously only columns referenced in the <command>UPDATE</> were
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set to null or <literal>DEFAULT</>.
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</para>
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</listitem>
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<listitem>
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<para>
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Internally store default foreign key matches (non-<literal>FULL</>,
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non-<literal>PARTIAL</>) as <quote>simple</> (Tom Lane)
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</para>
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<para>
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These were previously stored as "&lt;unspecified&gt;".
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This changes the value stored in system column <link
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linkend="catalog-pg-constraint"><structname>pg_constraint.confmatchtype</></link>.
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</para>
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</listitem>
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<listitem>
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<para>
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Store <link linkend="wal"><acronym>WAL</></link> in a continuous
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stream, rather than skipping the last 16MB segment every 4GB
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(Heikki Linnakangas)
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</para>
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<para>
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Previously, <acronym>WAL</> files ending in <literal>FF</> were
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not used. If you have <acronym>WAL</> backup or restore scripts
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that took that skipping into account, they need to be adjusted.
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</para>
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</listitem>
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</itemizedlist>
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</sect3>
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</sect2>
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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 grouping of sessions waiting for <link
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linkend="guc-commit-delay"><varname>commit_delay</></link>
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(Peter Geoghegan)
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</para>
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<para>
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This improves the usefulness and behavior of
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<varname>commit_delay</>. BACKWARD COMPATIBILITY
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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 in-memory sorts to use their full memory allocation (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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Require superuser privileges to set <link
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linkend="guc-commit-delay"><varname>commit_delay</></link>
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because it can now potentially delay other sessions (Simon Riggs)
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BACKWARD COMPATIBILITY
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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 the <link linkend="guc-external-pid-file">external
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<acronym>PID</> file</link> on postmaster exit (Peter Eisentraut)
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</para>
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</listitem>
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<listitem>
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<para>
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Have <quote>session id</> (<literal>%c</>) in <link
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linkend="guc-log-line-prefix"><varname>log_line_prefix</></link>
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always output four hex digits after the period (Bruce Momjian)
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COMPATIBILITY
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</para>
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</listitem>
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</itemizedlist>
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</sect4>
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</para>
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</listitem>
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<listitem>
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<para>
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Rename <varname>replication_timeout</> to <link
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linkend="guc-wal-sender-timeout"><varname>wal_sender_timeout</></link>
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(Amit Kapila)
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</para>
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<para>
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BACKWARD COMPATIBILITY
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This setting controls the <acronym>WAL</> sender timeout.
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</para>
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</listitem>
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</itemizedlist>
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<sect4>
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<itemizedlist>
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<listitem>
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<para>
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Store <acronym>WAL</> in a continuous stream, rather than skipping
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the last 16MB segment every 4GB (Heikki Linnakangas) BACKWARD
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COMPATIBLE BREAK
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</para>
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<para>
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Previously, <acronym>WAL</> files ending in <literal>FF</> were
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not used. If you have <acronym>WAL</> backup or restore scripts
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that took that skipping into account, they need to be adjusted.
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</para>
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</listitem>
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<listitem>
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<para>
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Change the <acronym>WAL</> record format to allow splitting the record header
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</para>
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</listitem>
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<listitem>
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<para>
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Throw an error if expiring tuple is again updated or deleted (Kevin Grittner)
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DETAILS? BACKWARD INCOMPATIBILITY
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</para>
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</listitem>
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<listitem>
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<para>
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Have <link linkend="SQL-REASSIGN-OWNED"><command>REASSIGN
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<itemizedlist>
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730-
<listitem>
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<para>
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Change <link linkend="SQL-CREATETABLE"><literal>ON UPDATE
733-
SET NULL/SET DEFAULT</></link> foreign key actions to affect
734-
all referenced columns, not just those referenced in the
735-
<command>UPDATE</> (Tom Lane)
736-
</para>
737-
738-
<para>
739-
Previously only columns referenced in the <command>UPDATE</> were
740-
set to null or <literal>DEFAULT</>. BACKWARD COMPATIBILITY CHANGE
741-
</para>
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</listitem>
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<listitem>
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<para>
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Provide clients with <link
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</para>
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</listitem>
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759-
<listitem>
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<para>
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Internally store default foreign key matches (non-<literal>FULL</>,
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non-<literal>PARTIAL</>) as <quote>simple</> (Tom Lane)
763-
</para>
764-
765-
<para>
766-
These were previously stored as "&lt;unspecified&gt;".
767-
This changes the value stored in system column <link
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linkend="catalog-pg-constraint"><structname>pg_constraint.confmatchtype</></link>.
769-
BACKWARD COMPATIBILITY CHANGE
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</para>
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</listitem>
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</itemizedlist>
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</sect4>

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