Delete unused model versions (built-in operation)
As new versions of models and physical data models are harvested, they begin to collect. Most of these “historical” versions are of no value to keep around. Also, they consume resources, such as disk space, index size, performance of search, etc.
Talend Data Catalog provides a tool to manage and eliminate these older versions. There is a script operation named Delete unused versions. When run, if a version of a model is not in any current configuration version, and it is more than one hour old, it will be deleted.
Information note
As Delete unused versions is an operation, you may define a schedule for it and that way it will clean up the older unused versions of model periodically and automatically.