Deep search from the value of database field

I have a database crawler that finds fine all field in table.

I have many important fields in the database, one of them contain the full path of my files, for example:

It’s possibile to search the content of the files and join with my database fields?
And which is the best way to obtain the results ?
There is a follow option ?

Best Regards

CsvListDataStore can crawl files from a file list in a CSV file, but DatabaseDataStore does not support it. If you need the feature, you need to extend DatabaseDataStore.