How to get JDBC teststep assertion status using groovy ?

Found solution with this:

def data = testRunner.testCase.getTestStepByName("teststepname").getPropertyValue("ResponseAsXml")

But we have to add in a groovy step separately from the JDBC step.

The script assertion with this code inside JDBC won't work in open source version as i understand.

So i need another groovy setp to achieve the goal.

Thanks