Github user gatorsmile commented on a diff in the pull request: https://github.com/apache/spark/pull/20610#discussion_r168267722 --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala --- @@ -399,11 +399,11 @@ object SQLConf { val ORC_IMPLEMENTATION = buildConf("spark.sql.orc.impl") .doc("When native, use the native version of ORC support instead of the ORC library in Hive " + - "1.2.1. It is 'hive' by default prior to Spark 2.3.") + "1.2.1. It is 'hive' by default.") .internal() .stringConf .checkValues(Set("hive", "native")) - .createWithDefault("native") + .createWithDefault("hive") --- End diff -- We also need to disable the ORC pushdown, because the ORC reader of Hive 1.2.1 has a few bugs.
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