Github user cloud-fan commented on a diff in the pull request: https://github.com/apache/spark/pull/21696#discussion_r199678338 --- Diff: sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/parquet/ParquetFileFormat.scala --- @@ -379,14 +366,29 @@ class ParquetFileFormat null) val sharedConf = broadcastedHadoopConf.value.value + + val fileMetaData = + ParquetFileReader.readFooter(sharedConf, fileSplit.getPath, SKIP_ROW_GROUPS).getFileMetaData --- End diff -- will we read footer again in the parquet reader?
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