<?xml version="1.0" encoding="UTF-8" ?>
<XMLDB PATH="auth/lti/db" VERSION="20211005" COMMENT="XMLDB file for Moodle auth/lti"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:noNamespaceSchemaLocation="../../../lib/xmldb/xmldb.xsd"
>
  <TABLES>
    <TABLE NAME="auth_lti_linked_login" COMMENT="Accounts linked to a users Moodle account.">
      <FIELDS>
        <FIELD NAME="id" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="true"/>
        <FIELD NAME="userid" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false" COMMENT="The user account the LTI user is linked to."/>
        <FIELD NAME="issuer" TYPE="text" NOTNULL="true" SEQUENCE="false"/>
        <FIELD NAME="issuer256" TYPE="char" LENGTH="64" NOTNULL="true" SEQUENCE="false" COMMENT="SHA256 hash of the issuer from which the platform user originates."/>
        <FIELD NAME="sub" TYPE="char" LENGTH="255" NOTNULL="true" SEQUENCE="false"/>
        <FIELD NAME="sub256" TYPE="char" LENGTH="64" NOTNULL="true" SEQUENCE="false" COMMENT="SHA256 hash of the subject identifying the user for the issuer."/>
        <FIELD NAME="timecreated" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
        <FIELD NAME="timemodified" TYPE="int" LENGTH="10" NOTNULL="true" SEQUENCE="false"/>
      </FIELDS>
      <KEYS>
        <KEY NAME="primary" TYPE="primary" FIELDS="id"/>
        <KEY NAME="userid_key" TYPE="foreign" FIELDS="userid" REFTABLE="user" REFFIELDS="id"/>
        <KEY NAME="unique_key" TYPE="unique" FIELDS="userid, issuer256, sub256"/>
      </KEYS>
    </TABLE>
  </TABLES>
</XMLDB>