Update ingest-data-streaming.md

Author: orspod

articles/data-explorer/ingest-data-streaming.md

@@ -36,8 +36,9 @@ Use the classic (bulk) ingestion instead of streaming ingestion when the amount
 
 1. In the [Web UI](https://dataexplorer.azure.com/), define [streaming ingestion policy](/azure/kusto/concepts/streamingingestionpolicy) on table(s) or database(s) that will receive streaming data. 
 
-    > [!TIP]
+    > [!NOTE]
     > If the policy is defined at the database level, all tables in the database are enabled for streaming ingestion.
+    > The applied policy can reference only newly ingested data and not other tables in the database.
 
 ## Use streaming ingestion to ingest data to your cluster