AngersZhuuuu commented on issue #24840: [SPARK-27998][SQL] Column alias should support quote string URL: https://github.com/apache/spark/pull/24840#issuecomment-603706991 @lipzhu Your change will make name alias support both `''` and `""` not only `""`. In presto and posgresSQL, `''` as STRING can't as identifier, `""` can be a identifier
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