ajithme opened a new pull request #25448: [SPARK-28697] Invalidate names starting with _ to avoid unexpected behaviour URL: https://github.com/apache/spark/pull/25448 ## What changes were proposed in this pull request? I think we should disallow if a identifier starts with _ for create database and create table Partially we can see its effect in SPARK-28697 where as the table name starts with _ (like _sampleTable) , the FileFormat assumes it to be a hidden folder and do not list it which causes unusual behavior ## How was this patch tested? Avoiding creating tables and databases with names starting from underscore. Added test case for same
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