maropu commented on issue #23731: [SPARK-26572][SQL] fix aggregate codegen result evaluation URL: https://github.com/apache/spark/pull/23731#issuecomment-460194935 But, the current fix changes the change behaivour of the other stateful exprs? e.g., ``` scala> val baseTable = Seq((1), (1)).toDF("idx") scala> val distinctWithRandId = baseTable.distinct.withColumn("id", functions.rand()) scala> baseTable.join(distinctWithRandId, "idx").show // w/ this pr +---+-------------------+ |idx| id| +---+-------------------+ | 1|0.09884607470357032| | 1|0.09884607470357032| +---+-------------------+ // the current master scala> baseTable.join(distinctWithRandId, "idx").show +---+-------------------+ |idx| id| +---+-------------------+ | 1|0.08661806632196123| | 1| 0.0903755555098934| +---+-------------------+ ```
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