Github user liuyu000 commented on a diff in the pull request:

    https://github.com/apache/trafodion/pull/1644#discussion_r202880294
  
    --- Diff: docs/sql_reference/src/asciidoc/_chapters/sql_statements.adoc ---
    @@ -3712,6 +3716,60 @@ ATTRIBUTES ALIGNED FORMAT
     --- SQL operation complete.
     ```
     
    +* This example demonstrates the character set of NCHAR column (_c1_) *cannot be specified*.
    --- End diff --
    
    Thanks Dave, your comments have been incorporated 😁 


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