[GitHub] hequn8128 commented on a change in pull request #6521: [FLINK-5315][table] Adding support for distinct operation for table API on DataStream

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hequn8128 commented on a change in pull request #6521: [FLINK-5315][table] Adding support for distinct operation for table API on DataStream
URL: https://github.com/apache/flink/pull/6521#discussion_r214677464
 
 

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 File path: docs/dev/table/tableApi.md
 ##########
 @@ -381,6 +381,36 @@ Table result = orders
 {% highlight java %}
 Table orders = tableEnv.scan("Orders");
 Table result = orders.distinct();
+{% endhighlight %}
+        <p><b>Note:</b> For streaming queries the required state to compute the query result might grow infinitely depending on the number of distinct fields. Please provide a query configuration with valid retention interval to prevent excessive state size. See <a href="streaming.html">Streaming Concepts</a> for details.</p>
+      </td>
+    </tr>
+    <tr>
+      <td>
+        <strong>Distinct Aggregation</strong><br>
+        <span class="label label-primary">Streaming</span>
 
 Review comment:
   Cool, thx

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