yigress opened a new pull request, #40799:
URL: https://github.com/apache/spark/pull/40799

   ### What changes were proposed in this pull request?
   where hive table.getStorageHandler call is used, check hive table parameter 
"storage_handler" first.  purpose is that hive table.getStorageHandler 
initializes the storagehandler class, if not necessary can just check on hive 
table parameter first. the table parameter is required for storagehandler table 
in hive.
   
   
   ### Why are the changes needed?
   for desc table, or use case where user just want to load HiveTableRelation, 
user do not need to provide the storagehandler jar.
   
   
   ### Does this PR introduce _any_ user-facing change?
   No
   
   
   ### How was this patch tested?
   past unit tests and also local test.
   


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