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path: root/schema/changelog-3.7.xml
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<?xml version="1.0" encoding="UTF-8"?>
<databaseChangeLog
  xmlns="http://www.liquibase.org/xml/ns/dbchangelog"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog
                      http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-3.4.xsd"
  logicalFilePath="changelog-3.7">

  <changeSet author="author" id="changelog-3.7">

    <update tableName="devices">
        <column name="groupid"/>
        <where>groupid NOT IN (SELECT id FROM groups)</where>
    </update>

    <addForeignKeyConstraint baseColumnNames="groupid" baseTableName="devices" constraintName="fk_device_group_groupid" onDelete="SET NULL" onUpdate="RESTRICT" referencedColumnNames="id" referencedTableName="groups"/>

    <update tableName="groups">
        <column name="groupid"/>
        <where>groupid NOT IN (SELECT id FROM (SELECT id FROM groups) AS groups_1)</where>
    </update>

  </changeSet>
</databaseChangeLog>