HyukjinKwon commented on a change in pull request #27728:
[SPARK-25556][SPARK-17636][SPARK-31026][SPARK-31060][SQL][test-hive1.2] Nested
Column Predicate Pushdown for Parquet
URL: https://github.com/apache/spark/pull/27728#discussion_r396839799
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/orc/OrcFiltersBase.scala
##########
@@ -45,4 +47,11 @@ trait OrcFiltersBase {
case _: AtomicType => true
case _ => false
}
+
+ /**
+ * The key of the dataTypeMap will be quoted if it contains `dots`.
+ */
+ protected[orc] def quotedDataTypeMap(schema: StructType): Map[String,
DataType] = {
Review comment:
qq: why is it protected?
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