Github user hvanhovell commented on a diff in the pull request: https://github.com/apache/spark/pull/11557#discussion_r55368124 --- Diff: sql/core/src/test/scala/org/apache/spark/sql/JoinSuite.scala --- @@ -331,8 +331,8 @@ class JoinSuite extends QueryTest with SharedSQLContext { } test("full outer join") { - upperCaseData.where('N <= 4).registerTempTable("left") - upperCaseData.where('N >= 3).registerTempTable("right") + upperCaseData.where('N <= 4).registerTempTable("`left`") --- End diff -- That is what we currently do. You can use any keyword as long as you wrap it with backticks.
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