IvanVergiliev commented on a change in pull request #23766: [SPARK-26859][SQL]
Fix field writer index bug in non-vectorized ORC deserializer
URL: https://github.com/apache/spark/pull/23766#discussion_r256316993
##########
File path:
sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/orc/OrcSourceSuite.scala
##########
@@ -332,6 +334,24 @@ abstract class OrcSuite extends OrcTest with
BeforeAndAfterAll {
assert(version === SPARK_VERSION_SHORT)
}
}
+
+ test("[SPARK-26859] Reading ORC files with explicit schema can result in
wrong data") {
+ withSQLConf(SQLConf.ORC_VECTORIZED_READER_ENABLED.key -> "false") {
Review comment:
@viirya the `OrcDeserializer` class (which is the one that contains the bug)
is only used for the non-vectorized reader AFAICT, so the vectorized doesn't go
through the buggy codepath.
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