Enhancement
Detail
#27735
PostgreSQL: Workaround for Method org.postgresql.jdbc.PgResultSet.updateClob(int, Reader) is not yet implemented.
The PostgreSQL driver is unfortunately incomplete. getClob() and updateClob() are not supported. One API returns inexplicable errors, the other at least says that it is not supported.
Solution
Since the API is only used in the migration anyway, it can simply be replaced by getString() and updateString().
Test
No test.