gengliangwang commented on a change in pull request #27728: [SPARK-17636][SQL]
Nested Field Predicate Pushdown for Parquet
URL: https://github.com/apache/spark/pull/27728#discussion_r385929469
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/sources/filters.scala
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@@ -40,6 +40,14 @@ sealed abstract class Filter {
case f: Filter => f.references
case _ => Array.empty
}
+
+ /**
+ * If any of the references of this filter contains nested field
+ * @since 3.2.0
+ */
+ def containNestedField: Boolean = {
+ this.references.exists(_.contains("."))
Review comment:
How about pass the schema or top-level output attributes as a parameter, and
judge if the filter is of a nested column.
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