How would I go about this?

I have a ton of grouped pdf files that I need to store in such a way that I can read and search them in the fastest way possible. Write/Annotate/Delete times are not important.

* The pdfs are already grouped by various themes and alphanumerically. This should facilitate searching.

* Average file size is about 2MB.

* There are about 2.5M files

How would I go about this?

Well, interfacing with the Python tool is interesting. I played with it one day or two at work, then i became bored.
>>19
I like programming, but is much better when you do something that is needed instead of a toy. In this particular case, just a few tools do the work, and you can even "hide" it building on top of the Python tool, if you really want to.

But writing something that GDS does very well is kinda pointless, IMO.

Still want to play with this?
http://www.sqlite.org/fts3.html
Is a good starting point