This is really great! What are the limitations?

I like that response - also more money.

I am working on an Oracle to MS-SQL migration now and really tried to get the vendor to support IRIS SQL but they won't consider. I find it particularly odd given at least a third of their customers already have an IRIS instance. Too bad Intersystems doesn't have a "MS-SQL" emulation mode. I would so love to speed test against MS-SQL directly. I know in generic SQL projects, IRIS easily beats both on the same hardware and at a fraction of the cost.

I would be curious to see this same test using pure Object script (M) and globals.