I’m not even talking forks. I’m talking largish projects hosted on GitHub (100k+ loc). The actual results will contain less than half the results you’d see with grep, and even then the indexed content may even be out of date. This is exacerbated even more when database migrations are kept in source control, with older migrations archived, and the only search results you get for eg a stored proc search will be a version of the sp from 6 months ago.