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Create "replication and recovery" section in alpha release notes.
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doc/src/sgml/release-9.1.sgml

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</sect2>
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<sect2>
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<title>Changes</title>
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<sect3>
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<title>Replication and Recovery</title>
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<itemizedlist>
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<listitem>
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<para>
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<emphasis>Support named restore points</emphasis>
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</para>
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<para>
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Named restore points can be created using a new server function,
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pg_create_restore_point. A new recovery.conf parameter,
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recovery_target_name, allows recovery to stop at a named restore
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point.
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</para>
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</listitem>
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<listitem>
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<para>
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<emphasis>Add new recovery.conf parameter, pause_at_recovery_target,
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which defaults to on</emphasis>
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</para>
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<para>
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This is a behavior change from previous releases, which entered normal
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running upon reaching the recovery target.
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</para>
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</listitem>
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<listitem>
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<para>
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<emphasis>Add pg_is_xlog_replay_paused, pg_xlog_replay_pause, and
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pg_xlog_replay_resume functions</emphasis>
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</para>
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</listitem>
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<listitem>
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<para>
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<emphasis>Allow standby servers to send information on running
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transactions back to the master</emphasis>
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</para>
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<para>
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When enabled, this prevents most recovery conflicts on the slave,
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but may cause MVCC bloat on the master.
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</para>
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</listitem>
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<listitem>
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<para>
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<emphasis>Support streaming base backups</emphasis>
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</para>
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<para>
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A new client, pg_basebackup, can be used to perform a streaming base
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backup.
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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>SQL Features</title>
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<itemizedlist>
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</para>
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</listitem>
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<listitem>
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<para>
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<emphasis>Add new recovery.conf parameter, pause_at_recovery_target,
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which defaults to on.</emphasis>
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</para>
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<para>
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This is a behavior change from previous releases, which entered normal
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running upon reaching the recovery target.
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</para>
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</listitem>
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<listitem>
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<para>
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<emphasis>Add new recovery.conf parameter, recovery_target_name,
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allowing recovery to proceed to a named restore point</emphasis>
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</para>
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<para>
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Named restore points can be created using a new server function,
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pg_create_restore_point.
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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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</para>
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</listitem>
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<listitem>
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<para>
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<emphasis>Allow standby servers to send information on running
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transactions back to the master</emphasis>
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</para>
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<para>
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When enabled, this prevents most recovery conflicts on the slave,
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but may cause MVCC bloat on the master.
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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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</para>
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</listitem>
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<listitem>
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<para>
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<emphasis>Add pg_is_xlog_replay_paused, pg_xlog_replay_pause, and
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pg_xlog_replay_resume functions.</emphasis>
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</para>
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</listitem>
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<listitem>
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<para>
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<emphasis>Change pg_last_xlog_receive_location not to move
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</para>
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</listitem>
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<listitem>
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<para>
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<emphasis>Support streaming base backups.</emphasis>
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</para>
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<para>
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A new client, pg_basebackup, can be used to perform a streaming base
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backup.
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</para>
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</listitem>
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<listitem>
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<para>
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<emphasis>Add a directory output format to pg_dump</emphasis>

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