<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE data SYSTEM "../../../lib/pkp/dtd/xmlData.dtd">

<!--
  * public_issue_ids.xml
  *
  * Copyright (c) 2013-2016 Simon Fraser University Library
  * Copyright (c) 2003-2016 John Willinsky
  * Distributed under the GNU GPL v2. For full terms see the file docs/COPYING.
  *
  * 2.2.0/2.2.1: Make blank but non-null public issue IDs blank for the sake of
  * preventing index duplicates.
  *
  -->

<data>
	<!-- Bug #3219: Public issue ID indexing fix -->
	<sql>
		<query>
			UPDATE issues SET public_issue_id = NULL WHERE public_issue_id = ''
		</query>
	</sql>
</data>
