Test update db2

[abhilash-sivan]

This change is a prerequisite for #2167

Corrected the error message properly in one of db2 test

[kirrg001]

Context:

With the refactoring in #2167, the data error property is always the error message or the error code - we no longer use the stack. The stack is always assigned to span.stack as discussed in the community.

But error.message does not contain the error type name anymore.

TypeError: "x" is not a function (stack) vs "x" is not a function (message).

We discussed that we keep the format and use error.name: error.message.

Closing PR. We discussed that we will keep the original error format, because 1) non breaking 2) less work 3) better to read for the customer.