Deep search from the value of database field

Hello,
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:
//hp-tech-02/documentation/RTO_RPO/3-2-1_Backup.docx

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 ?

Thanks,
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.