The plan is to just use interpretation of expressions for short-running queries. I've spent a lot of work in this release cycle making that faster, and allowin

The plan is to just use interpretation of expressions for short-running queries. I've spent a lot of work in this release cycle making that faster, and allowing for an easier integration w/ less duplication between JIT and interpreted evaluation. There's two approaches for deciding when to JIT: a) based on query cost estimation. b) just do it after a threshold number of executions. I've not yet decided / experimented enough to make a call. Additionally, at a later stage, caching of compiled programs will play a role, to reduce the frequency of llvm invocation.