How to add custom table for Indexing in elastic search

I am using fulltextsearch_elasticsearch (nextcloud 14).

Here i want to to search from my custom table which i have added.

is there any possibility to do this and how??

my table structure


I want to search by name Title and Description.

You should be able to create your own extension to the files_fulltextsearch using the files_fulltextsearch_tesseract as example.

thank u @Cult
can u plz explain how “files_fulltextsearch_tesseract” works.