Github user snuyanzin commented on a diff in the pull request:
https://github.com/apache/flink/pull/6223#discussion_r199543936
--- Diff: docs/dev/table/sql.md ---
@@ -1510,6 +1510,17 @@ ATAN(numeric)
</td>
</tr>
+ <tr>
+ <td>
+ {% highlight text %}
+ATAN2(numeric, numeric)
+{% endhighlight %}
+ </td>
+ <td>
+ <p>Calculates the arc tangent of a given coordinate.</p>
--- End diff --
Hello @hequn8128! The idea about coordinates comes from Math.atan2 +
Calcite's definition here [1] ATAN2(numeric, numeric) | Returns the arc tangent
of the numeric coordinates.
Does it make sense to take the same wording as Calcite has?
[1] https://calcite.apache.org/docs/reference.html
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