Github user gatorsmile commented on the pull request: https://github.com/apache/spark/pull/9385#issuecomment-156612181 Hi, @marmbrus Originally, I thought quantifiers are part of identifiers, like schema name in traditional RDBMS. Based on your explanation, this is not true. I did a code change. Please check if the latest changes make sense. `semanticEquals` is used. Now, all the test cases passed. https://github.com/gatorsmile/spark/commit/8e72b17561e4cc1a6cce86fc70f6ed968ebf5b38 Just did a merge to the latest master. Thank you for your time.
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