Github user liancheng commented on a diff in the pull request:
https://github.com/apache/spark/pull/12153#discussion_r59595284
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/FileSourceStrategy.scala
---
@@ -197,4 +204,26 @@ private[sql] object FileSourceStrategy extends
Strategy with Logging {
case _ => Nil
}
+
+ private def getBlockLocations(file: FileStatus): Array[BlockLocation] =
file match {
+ case f: LocatedFileStatus => f.getBlockLocations
+ case f => Array.empty[BlockLocation]
+ }
+
+ // Given locations of all blocks of a single file, `blockLocations`, and
an `offset` position of
+ // the same file, find out the index of the block that contains this
`offset`. If no such block
+ // can be found, returns -1.
+ private def getBlockIndex(blockLocations: Array[BlockLocation], offset:
Long): Int = {
--- End diff --
This one is a little bit tricky, would like to keep it here for readability.
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