Github user yhuai commented on a diff in the pull request:
https://github.com/apache/spark/pull/13371#discussion_r65301654
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetFileFormat.scala
---
@@ -344,6 +344,11 @@ private[sql] class ParquetFileFormat
val hadoopAttemptContext =
new TaskAttemptContextImpl(broadcastedHadoopConf.value.value,
attemptId)
+ // Try to push down filters when filter push-down is enabled.
+ // Notice: This push-down is RowGroups level, not individual records.
--- End diff --
Can you provide link to the doc saying it is row group level?
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