[GitHub] xccui commented on a change in pull request #6700: [FLINK-10340][table] Add Cosh math function supported in Table API and SQL

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xccui commented on a change in pull request #6700: [FLINK-10340][table] Add Cosh math function supported in Table API and SQL
URL: https://github.com/apache/flink/pull/6700#discussion_r222125558
 
 

 ##########
 File path: docs/dev/table/functions.md
 ##########
 @@ -1274,6 +1274,17 @@ ATAN2(numeric1, numeric2)
       </td>
     </tr>
 
+    <tr>
+      <td>
+        {% highlight text %}
+COSH(numeric)
+{% endhighlight %}
+      </td>
+      <td>
+        <p>Returns the hyperbolic cosine of <i>numeric</i>. Return value type is DOUBLE.</p>
 
 Review comment:
   Hi @pnowojski, yes, it's necessary to mark the data types of the functions' inputs/output, but maybe not inline with the description. I think it's better to assign separate columns for that. Anyway, incrementally adding the return types is not bad to me and we need to go over the whole function list at a time in the future.

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