Doubts about Push Streaming dataset

Hi , I have some doubts about push streaming dataset. Push streaming dataset is the one which is created when historic analysis is enabled while creating streaming dataset. So the limitiations of push dataset applies to pushstreaming dataset? . And there is a 5M rows limitation for Push dataset but that is for one table . But while we are creating pushstreaming dataset only one table is created ?. what if i want to delete all rows in a push streaming dataset?