Liquibase:执行SQL SET的错误定义。

I'm using liquibase to execute oracle scripts. This oracle scripts, are executing merge into statements for oracle, this work fine, but the problem is that the data that I need to insert have strange characters, so in order to work we are using SET DEFINE OFF (at the beginning of the file) and SET DEFINE ON (at the end of the file) in order to avoid the errors.I'm using liquibase to execute oracle scripts.