maropu commented on a change in pull request #29045:
URL: https://github.com/apache/spark/pull/29045#discussion_r452620989
##########
File path:
sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/orc/OrcColumnarBatchReaderSuite.scala
##########
@@ -77,4 +77,43 @@ class OrcColumnarBatchReaderSuite extends QueryTest with
SharedSparkSession {
assert(p1.getUTF8String(0) === partitionValues.getUTF8String(0))
}
}
+
+ test("orc data created by the hive tables having _col fields name") {
+ var error: Throwable = null
+ val table = """CREATE TABLE `test_date_hive_orc`
+ | (`_col1` INT,`_col2` STRING,`_col3` INT)
+ | USING orc""".stripMargin
+ spark.sql(table).collect
+ spark.sql("insert into test_date_hive_orc values(9, '12', 2020)").collect
+ val df = spark.sql("select _col2 from test_date_hive_orc")
+ try {
+ val data = df.collect()
+ assert(data.length == 1)
+ } catch {
+ case e: Throwable =>
+ error = e
+ }
+ assert(error == null)
+ spark.sql(s"DROP TABLE IF EXISTS test_date_hive_orc")
+ }
+
+ test("orc data created by the spark having proper fields name") {
+ var error: Throwable = null
+ val table = """CREATE TABLE `test_date_spark_orc`
+ | (`d_date_sk` INT,`d_date_id` STRING,`d_year` INT)
+ | USING orc""".stripMargin
+ spark.sql(table).collect
+ spark.sql("insert into test_date_spark_orc values(9, '12', 2020)").collect
+ val df = spark.sql("select d_date_id from test_date_spark_orc")
+ try {
+ val data = df.collect()
+ assert(data.length == 1)
+ } catch {
+ case e: Throwable =>
+ error = e
+ }
+ assert(error == null)
+ spark.sql(s"DROP TABLE IF EXISTS test_date_spark_orc")
+ }
+
Review comment:
nit: remove this blank.
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