Updating a solr record

[Paul Rosen]

I realize there is no way to update particular fields in a solr record. 
I know the recommendation is to delete the record from the index and 
re-add it, but in my case, it is difficult to completely reindex, so 
that creates problems with my work flow.

That is, the info that I use to create a solr doc comes from two places: 
a local file that contains most of the info, and a URL in that file that 
points to a web page that contains the rest of the info.

To completely reindex, we have to hit every website again, which is 
problematic for a number of reasons. (Plus, those websites don't change 
much, so it is just wasted effort.) (Once in a while we do reindex, and 
it is a huge production to do so.)

But that means that if I want to make a small change to either 
schema.xml or the local files that I'm indexing, I can't. I can't even 
fix minor bugs until our yearly reindexing.

So, the question is:

Is there any way to get the info that is already in the solr index for a 
document, so that I can use that as a starting place? I would just tweak 
that record and add it again.

Thanks,
Paul