Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/12153#discussion_r59576310
--- Diff:
sql/hive/src/test/scala/org/apache/spark/sql/sources/hadoopFsRelationSuites.scala
---
@@ -668,6 +671,42 @@ abstract class HadoopFsRelationTest extends QueryTest
with SQLTestUtils with Tes
df.write.format(dataSourceName).partitionBy("c", "d",
"e").saveAsTable("t")
}
}
+
+ test("Locality support for FileScanRDD") {
+ withHadoopConf(
+ "fs.file.impl" -> classOf[LocalityTestFileSystem].getName,
+ "fs.file.impl.disable.cache" -> "true"
+ ) {
+ withTempPath { dir =>
+ val path = "file://" + dir.getCanonicalPath
+ val df1 = sqlContext.range(4)
+
df1.coalesce(1).write.mode("overwrite").format(dataSourceName).save(path)
+
df1.coalesce(1).write.mode("append").format(dataSourceName).save(path)
+
+ val df2 = sqlContext.read
+ .format(dataSourceName)
+ .option("dataSchema", df1.schema.json)
+ .load(path)
+
+ val Some(fileScanRDD) = {
--- End diff --
how about:
```
val fileScanRDD = df2.queryExecution.executedPlan.collectFirst {
case scan: DataSourceScan if scan.rdd.isInstanceOf[FileScanRDD] =>
scan.rdd.asInstanceOf[FileScanRDD]
}
```
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