javalite/activejdbc — pull request #201 by evanleonard (2013-12-10 20:29:27+00:00)
Title: Added support for SELECT EXISTS queries for fast checking for row existence

Had a case where I just need to quickly check if something exists before paying the cost of querying for it, which will happen relatively infrequently. Model.findFirst works pretty well, but this should be even faster.