When connection to a PostgreSQL DB fails in PostgreSQLWriter due to a non-existing DB table, two kinds of errors are logged. The most important (The one shown in "Error details" section) seems to be "The pipe has been ended" kind of error which unfortunately did not help me at all in finding the original cause. Then, somewhere in the middle of the log, where it's easy to overlook it, is a message saying that the desired table does not exist.
I would like to see both these errors in the "Error details" section. Both can be sometimes useful and both are important enough to be displayed there. The current state with only one error shown there could be misleading sometimes.