How would we match static content of error to interesting fields of splunk search by editing lookup table with regex?

[Naga1]

If we have some error messages with some static and dynamic content. We want to match static content of error to interesting fields of splunk search by editing lookup table with regex please suggest a possible solution here.

error:

Connection timed out 65143

static content : Connection timed out 

dynamic content : 65143

[ITWhisperer]

You could try defining WILDCARD lookups in the lookup definition for the field e.g.

Connection timed out *