AngersZhuuuu edited a comment on issue #27861: [SPARK-30707][SQL]Window function set partitionSpec as order spec when orderSpec is empty URL: https://github.com/apache/spark/pull/27861#issuecomment-597472224 @cloud-fan As I have tested in postgres SQL, when use window frame with `RANGE` won't add default order spec, when use window frame with `ROW`, it will add default order spec We can add code to control this different behavior, but just a little strange
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