MaxGekk commented on a change in pull request #28750:
URL: https://github.com/apache/spark/pull/28750#discussion_r436542652



##########
File path: 
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/StringUtils.scala
##########
@@ -122,8 +122,8 @@ object StringUtils extends Logging {
           val available = maxLength - length
           val stringToAppend = if (available >= sLen) s else s.substring(0, 
available)
           strings.append(stringToAppend)
+          length += sLen
         }
-        length += sLen

Review comment:
       > The error message you are referring to, is this captured in some test ?
   
   Looks like not. Could you add a test for that?




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