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The module liquibase.xml file is the newer alternative to the sqldiff.xml file.

• For liquibase conventions, see the Datatypes and use of Liquibase section on the Conventions page
• Put the liquibase.xml file in the metadata folder (next to your config.xml)
• The liquibase file is run after any found sqldiff.xml file. This is so module's aren't forced to rewrite their sqldiff files into liquibase files for openmrs 1.7.
• See http://www.liquibase.org/manual/home#available_database_refactorings for xml element options
• It is recommended to prepend the moduleId to the id of the changeset so that it is guaranteed to differ from those in core or other modules e.g calculation-20140716-1415 where calculation is the moduleId

Example metadata/liquibase.xml file:

<?xml version="1.0" encoding="UTF-8"?>

<databaseChangeLog xmlns="http://www.liquibase.org/xml/ns/dbchangelog/1.9"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.liquibase.org/xml/ns/dbchangelog/1.9
                  http://www.liquibase.org/xml/ns/dbchangelog/dbchangelog-1.9.xsd">

	<!--
		See http://www.liquibase.org/manual/home#available_database_refactorings
		for a list of supported elements and attributes
	-->

	<changeSet id="mymoduleid-2010-05-25-15:50" author="bwolfe">
		<delete tableName="global_property">
			<where>property = 'myproperty'</where>
		</delete>
	</changeSet>

</databaseChangeLog>