Github user manishgupta88 commented on a diff in the pull request:
https://github.com/apache/carbondata/pull/3044#discussion_r244919178
--- Diff: docs/ddl-of-carbondata.md ---
@@ -681,24 +682,28 @@ Users can specify which columns to include and
exclude for local dictionary gene
**NOTE:** Drop Complex child column is not supported.
- - ##### CHANGE DATA TYPE
+ - ##### RENAME COLUMN AND CHANGE DATATYPE
--- End diff --
Change this to `Change Column Name/Type`. Please go through the below link
and try to align the documentation in that way if possible
https://cwiki.apache.org/confluence/display/Hive/LanguageManual+DDL#LanguageManualDDL-ChangeColumnName/Type/Position/Comment
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