Exactly which IPTC / EXIF tags are read into the database?

[rrlives]

(I have been unable to discover by searching and reading the docs. I apologzie if the information is available and I missed it.)

I have learned that yes, if the configuration is set correctly, "some" IPTC and EXIF tags will be read into the database and then be searchable, which is exactly what I need. (Versus having to tag the photos in Coppermine itself to be read into the database.)

But now I need to know exactly which tags those are, so I can use them.  It would be ideal if it is the keyword and description tags, but if not, I can just force other tags to operate the same way.  I just want the keyword information to travel with the image, whether it's in the "right" slot or not.

Thank you in advance for your help.