A junior data engineer is using the following code to de-duplicate raw streaming data and insert them into a target Delta table. ```python spark.readStream.table("orders_raw") \ .dropDuplicates(["order_id", "order_timestamp"]) \ .writeStream .option("checkpointLocation", "dbfs: /checkpoints") \ .table("orders_unique") ``` However, a senior data engineer points out that this approach may not suffice for ensuring distinct records in the target table, especially with late-arriving duplicates. What could explain the senior engineer's concern? | Databricks Certified Data Engineer - Professional Quiz - LeetQuiz