Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/18469#discussion_r125336815
--- Diff:
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/plans/PlanTest.scala
---
@@ -28,8 +29,9 @@ import org.apache.spark.sql.internal.SQLConf
/**
* Provides helper methods for comparing plans.
*/
-abstract class PlanTest extends SparkFunSuite with PredicateHelper {
+trait PlanTest extends SparkFunSuite with PredicateHelper {
+ // TODO(gatorsmile): remove this from PlanTest and all the
analyzer/optimizer rules
protected val conf = new SQLConf().copy(SQLConf.CASE_SENSITIVE -> true)
--- End diff --
That requires changing the source codes of `analyzer/optimizer`. We have a
bug in multi-session supports. We need to fix that before changing the source
codes of `analyzer/optimizer`
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