dawidwys commented on a change in pull request #8057: [FLINK-12028][table] Add
`addColumns`,`renameColumns`, `dropColumns` …
URL: https://github.com/apache/flink/pull/8057#discussion_r270322044
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File path: docs/dev/table/tableApi.md
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@@ -188,7 +188,50 @@ Table result = orders.select("*");
{% endhighlight %}
</td>
</tr>
-
+ <tr>
+ <td>
+ <strong>AddColumns</strong><br>
Review comment:
Could you explain a bit more what happens in corner cases?
What happens:
- when adding column with a name that already exists
- when adding columns with same name
- when you add aggregation as a new column
Can you think of some other special cases?
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