Github user dongjoon-hyun commented on a diff in the pull request:
https://github.com/apache/spark/pull/19948#discussion_r156540742
--- Diff:
sql/hive/src/test/scala/org/apache/spark/sql/hive/execution/SQLQuerySuite.scala
---
@@ -2172,4 +2172,21 @@ class SQLQuerySuite extends QueryTest with
SQLTestUtils with TestHiveSingleton {
}
}
}
+
+ test("SPARK-19809 NullPointerException on zero-size ORC file") {
+ Seq("native", "hive").foreach { orcImpl =>
+ withSQLConf(SQLConf.ORC_IMPLEMENTATION.key -> orcImpl) {
+ withTempPath { dir =>
+ withTable("spark_19809") {
+ sql(s"CREATE TABLE spark_19809(a int) STORED AS ORC LOCATION
'$dir'")
+ Files.touch(new File(s"${dir.getCanonicalPath}", "zero.orc"))
+
+ withSQLConf(HiveUtils.CONVERT_METASTORE_ORC.key -> "true") {
// default since 2.3.0
+ checkAnswer(sql("SELECT * FROM spark_19809"), Seq.empty)
--- End diff --
It's done.
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