adding or renaming a table used in a SQL Server connection forces to wait about 10 minutes for the new table name to appear in the list of the flow editor. Even entering the new name as "custom table name" doesn't work:
Error executing the api '/v2/$metadata.json/datasets/..database.windows.net,Growth/tables/myNewTable'
During a process of refactoring and optimizing views and tables, this is a real problem while when working with flows at the same time. After about 10 minutes of waiting and reloading the flow editor, the new table names appears.
A way to update a dataconnection manually (e.g. refresh button) would help a lot.
PS: an "currently not supported" answer was given in this Forum Thread