viirya commented on a change in pull request #27728:
[SPARK-25556][SPARK-17636][SPARK-31026][SQL][test-hive1.2] Nested Column
Predicate Pushdown for Parquet
URL: https://github.com/apache/spark/pull/27728#discussion_r387266696
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetFilters.scala
##########
@@ -75,13 +94,13 @@ class ParquetFilters(
}
/**
- * Holds a single field information stored in the underlying parquet file.
+ * Holds a single primitive field information stored in the underlying
parquet file.
*
- * @param fieldName field name in parquet file
+ * @param fieldNames field names in parquet file
Review comment:
I think It still indicates a single field name? Though it could contain
multiple identifiers.
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