AngersZhuuuu commented on issue #25878: [SPARK-29162][SQL]Simplify NOT(IsNull(x)) and NOT(IsNotNull(x)) URL: https://github.com/apache/spark/pull/25878#issuecomment-533766516 gentle ping @juliuszsompolski I agree a lot that we should simplify these expression. It's really useful for judge query canonicalization equal. Meet this problem when I am doing some cache framework .
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