dilipbiswal commented on pull request #27803:
URL: https://github.com/apache/spark/pull/27803#issuecomment-623211354
Hi @maropu , currently we will be able use flatten and explode to achieve
the same result ? Perhaps supporting nested generators will support more use
cases. But a simple use case can work with flatten - FYI.
```
scala> spark.sql("SELECT explode(flatten(array(array(4), array(5)))) v").show
+---+
| v|
+---+
| 4|
| 5|
+---+
```
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