Github user peter-toth commented on a diff in the pull request: https://github.com/apache/spark/pull/22789#discussion_r228753682 --- Diff: sql/core/src/test/scala/org/apache/spark/sql/execution/WholeStageCodegenSuite.scala --- @@ -319,4 +319,15 @@ class WholeStageCodegenSuite extends QueryTest with SharedSQLContext { assert(df.limit(1).collect() === Array(Row("bat", 8.0))) } } + + test("SPARK-25767: Lazy evaluated stream of expressions handled correctly") { --- End diff -- Strange, I've just rerun it on master and got: ``` 08:34:45.754 ERROR org.apache.spark.sql.catalyst.expressions.codegen.CodeGenerator: failed to compile: org.codehaus.commons.compiler.CompileException: File 'generated.java', Line 81, Column 17: Expression "bhj_isNull_6" is not an rvalue org.codehaus.commons.compiler.CompileException: File 'generated.java', Line 81, Column 17: Expression "bhj_isNull_6" is not an rvalue ```
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