Github user HyukjinKwon commented on a diff in the pull request:
https://github.com/apache/spark/pull/22197#discussion_r212797948
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetFilters.scala
---
@@ -350,25 +352,43 @@ private[parquet] class ParquetFilters(
}
/**
- * Returns a map from name of the column to the data type, if predicate
push down applies.
+ * Returns nameMap and typeMap based on different case sensitive mode,
if predicate push
--- End diff --
+1 for avoiding returning 2maps if possible.
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