def upsertToDelta(microBatchOutputDF, batchId): 
  
  microBatchOutputDF.createOrReplaceTempView("updates")
 
  microBatchOutputDF._jdf.sparkSession().sql("""
    MERGE INTO old o
    USING updates u
    ON u.id = o.id
    WHEN MATCHED THEN UPDATE SET *
    WHEN NOT MATCHED THEN INSERT *
  """)
 
stream_new_df = spark.readStream.format("delta").load(new_data_frame_path)
stream_old_df = spark.readStream.format("delta").load(old_data_frame_path)
 
stream_old_df.createOrReplaceTempView("old")
 
stream_new_df.writeStream.format("delta") \
            .option("checkpointLocation", "") \
            .option("mergeSchema", "true") \
            .option("path", "") \
            .foreachBatch(upsertToDelta) \
            .trigger(once=True) \
            .outputMode("update") \
            .table("")

I'm trying to execute this code but I get the following error:

Data source com.databricks.sql.transaction.tahoe.sources.DeltaDataSource does not support Update output mode