dbtsai 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_r385941478
##########
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:
This is a quick implementation. I plan to write a parser to parse nested
column name.
For example, `a.b` is a nested field while
```
`a.b`
```
is a field name containing `dot`. WDYT?
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