无法在flowable engine中创建数据库架构“ACT_RU_IDENTITYLINK

<bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
    <property name="driverClassName" value="com.mysql.jdbc.Driver" />
    <property name="url" value="jdbc:mysql://localhost:3306/flowable" />
    <property name="username" value="root" />
    <property name="password" value="password" />
</bean>

<bean id="processEngineConfiguration" class="org.flowable.engine.impl.cfg.StandaloneProcessEngineConfiguration">
    <property name="databaseSchemaUpdate" value="true" />
    <property name="jdbcUrl" value="jdbc:mysql://localhost:3306/flowable?characterEncoding=UTF-8" />
    <property name="jdbcDriver" value="com.mysql.jdbc.Driver" />
    <property name="jdbcUsername" value="root" />
    <property name="jdbcPassword" value="password" />
    <property name="databaseSchema" value="ACT" />
</bean>