Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/21608#discussion_r208408858
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/DataSourceUtils.scala
---
@@ -49,4 +51,11 @@ object DataSourceUtils {
}
}
}
+
+ // SPARK-15895: Metadata files (e.g. Parquet summary files) and
temporary files should not be
+ // counted as data files, so that they shouldn't participate partition
discovery.
+ private[sql] def isDataPath(path: Path): Boolean = {
+ val name = path.getName
+ !((name.startsWith("_") && !name.contains("=")) ||
name.startsWith("."))
--- End diff --
Not sure what is your earlier impl. I would prefer to keeping unchanged the
original code in `PartitioningAwareFileIndex.scala`. Just add a utility
function `isDataPath ` in CommandUtils.scala. Does this sound good to you?
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