Merge pull request #17915 from kevinvngo/patch-58

Azure Synapse does not support RC File

Author: PRMerger13

docs/t-sql/statements/create-external-file-format-transact-sql.md

@@ -31,7 +31,7 @@ The following file formats are supported:
 
 - Delimited Text  
 
-- Hive RCFile  
+- Hive RCFile  - Does not apply to Azure Synapse Analytics.
 
 - Hive ORC