Find out which nodes use a specific filter How could I find out which nodes actually use a specific filter?

My nodes use an input format that has the Bbcode filter enabled. Now I need to know which (of the several thousand) nodes use BB code, to decide if I still need this filter (in which case I’d switch to Extensible BBCode, and for that I’d like to have a list of nodes to test if everything works correctly).
Create a view for nodes &amp; add Content: Body (body:format) in Filter Criteria, then set the text format value as bbcode.