RTC Component deletion

@Geoffrey Clemm : I am not clear with your answer. can you please elaborate?

A stream object in RTC is primarily a reference to a set of "change history" objects (which you can think of as being the list of change sets and baselines you see when you ask for the history of a component in a stream).  It also has some metadata, such as a name and description.  When you delete a stream, you delete that metadata, but you don't delete the change set history ... so the change sets that define the configuration of that stream (and the components that contain those change sets) are not affected by the deletion of a stream that references them.

In contrast, a component "contains" all of the change sets and versions for the versionable items in that component, so deleting that component would imply deleting all the the change sets and versions that it contains.  Today you can delete the content of individual versions, but you cannot delete change sets or change  histories.

If there is a particular part of the answer that is still unclear, please identify it and I can try to explain further.

@gmclemm, thank you. It was my question for a long time. Finally I got a clear answer.