Something that could help my company out would be a sql parser that can create the liquibase needed xml change files. This would be a great feature if you wanted to make a pay-product for liquibase. We would buy this.
You are thinking of something that could take a standard SQL script and parse it to create , , etc. tags from the sql statements?
You are able to use the and tags to pull in existing SQL scripts, but they all run as a single changeSet.
What gets very difficult about it is supporting the very weird syntax of many different database engines.