<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-3.1.xsd">
    <changeSet id="add-player-mixer_001" author="biconou">
        <validCheckSum>8:f3bc74192812dcd68bcf8e5945f5a2ac</validCheckSum>
        <preConditions onFail="MARK_RAN">
            <not>
                <columnExists tableName="player" columnName="mixer" />
            </not>
        </preConditions>
        <addColumn tableName="player">
            <column name="mixer" type="${varchar_type}">
                <constraints nullable="true" />
            </column>
        </addColumn>
    </changeSet>
</databaseChangeLog>
