cloud-fan commented on PR #39524:
URL: https://github.com/apache/spark/pull/39524#issuecomment-1381848426
@huaxingao I think the v1 filter to v2 translation has a bug
```
case class IsNotNull(attribute: String) extends Filter {
override def references: Array[String] = Array(attribute)
override def toV2: Predicate = new Predicate("IS_NOT_NULL",
Array(FieldReference(attribute)))
}
```
The `attribute` can either be the parsed name (no quoting) if nested filter
is disabled, or a SQL name otherwise. But `FieldReference.apply` only accepts
SQL name.
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