Hi Leo,

The default URL limit is 2000 characters. I made a change a couple of releases ago to have our Query API's use the POST body. The size of the POST body is regulated by the server.

http://stackoverflow.com/questions/417142/what-is-the-maximum-length-of-a-url-in-different-browsers

As for the R API, that migration might still need to occur.

Thanks,
Nick