Existing case on MySQL characters didn't solve my question.
I'm taking data from a text file which is in utf8. So is the target table. The output however contains Polish national characters displaying improperly.
By importing the same source file to MySQL by MySQL's load function, the output is correct.
When previewing data in csv or text file input step, it displays correctly.
Seems like the problem is with the writing step.
What am I missing?