public void delete(String columnFamilyName, String key) {
        try {
            getRocksDB().delete(managedHandlesMap.get(columnFamilyName), key.getBytes());
        } catch (RocksDBException e) {
            throw new RuntimeException(e);
        }
    }
Perform a single Delete operation.

@param columnFamilyName Column Family name
@param key Key to be deleted
inlong-sort/sort-flink/sort-flink-v1.13/sort-connectors/iceberg/src/main/java/org/apache/inlong/sort/iceberg/sink/collections/RocksDBDAO.java