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Convert documentation to DocBook XML
Since some preparation work had already been done, the only source changes left were changing empty-element tags like <xref linkend="foo"> to <xref linkend="foo"/>, and changing the DOCTYPE. The source files are still named *.sgml, but they are actually XML files now. Renaming could be considered later. In the build system, the intermediate step to convert from SGML to XML is removed. Everything is build straight from the source files again. The OpenSP (or the old SP) package is no longer needed. The documentation toolchain instructions are updated and are much simpler now. Peter Eisentraut, Alexander Lakhin, Jürgen Purtz
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@@ -29,7 +29,7 @@ CHECKPOINT
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A checkpoint is a point in the write-ahead log sequence at which
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all data files have been updated to reflect the information in the
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log. All data files will be flushed to disk. Refer to
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<xref linkend="wal-configuration"> for more details about what happens
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<xref linkend="wal-configuration"/> for more details about what happens
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during a checkpoint.
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</para>
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@@ -37,14 +37,14 @@ CHECKPOINT
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The <command>CHECKPOINT</command> command forces an immediate
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checkpoint when the command is issued, without waiting for a
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regular checkpoint scheduled by the system (controlled by the settings in
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<xref linkend="runtime-config-wal-checkpoints">).
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<xref linkend="runtime-config-wal-checkpoints"/>).
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<command>CHECKPOINT</command> is not intended for use during normal
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operation.
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</para>
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<para>
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If executed during recovery, the <command>CHECKPOINT</command> command
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will force a restartpoint (see <xref linkend="wal-configuration">)
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will force a restartpoint (see <xref linkend="wal-configuration"/>)
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rather than writing a new checkpoint.
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</para>
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