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<?xml version="1.0" encoding="ISO-8859-1"?>
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-->
<refentry id="fn_rdf_64bit_upgrade">
<refmeta>
<refentrytitle>DB.DBA.RDF_64BIT_UPGRADE</refentrytitle>
<refmiscinfo>rdf</refmiscinfo>
</refmeta>
<refnamediv>
<refname>DB.DBA.RDF_64BIT_UPGRADE</refname>
<refpurpose>Alters IRI_ID columns to get IRI_ID_8.</refpurpose>
</refnamediv>
<refsynopsisdiv>
<funcsynopsis id="fsyn_rdf_64bit_upgrade">
<funcprototype id="fproto_rdf_64bit_upgrade">
<funcdef><function>DB.DBA.RDF_64BIT_UPGRADE</function></funcdef>
</funcprototype>
</funcsynopsis>
</refsynopsisdiv>
<refsect1 id="desc_rdf_64bit_upgrade"><title>Description</title>
<para>There are two data types. IRI_ID is 4-byte and IRI_ID_8 is 8-byte. Initially, IRI_ID columns are created. DB.DBA.RDF_64BIT_UPGRADE() alters them to get IRI_ID_8.</para>
<para>Note that this is to hold more that 4G of distinct IRIs, number of distinct quads is not limited by 4G even without the upgrade.</para>
<para>The function should be called once.</para>
<para>It shutdowns the server at completion upgrade so it should not be called from web-application.</para>
<para>Then the server should be restarted manually.</para>
<para>The server log should be checked for diagnostics before restart.</para>
</refsect1>
<!--
<refsect1 id="params_rdf_64bit_upgrade">
<title>Parameters</title>
</refsect1>
<refsect1 id="examples_rdf_64bit_upgrade">
<title>Examples</title>
<example id="ex_rdf_64bit_upgrade">
<title>Simple example</title>
</example>
</refsect1>
<refsect1 id="seealso_rdf_64bit_upgrade">
<title>See Also</title>
<para><link linkend="fn_rdf_backup_metadata"><function>DB.DBA.RDF_BACKUP_METADATA</function></link></para>
</refsect1-->
</refentry>
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