ShreelekhyaG commented on a change in pull request #4113:
URL: https://github.com/apache/carbondata/pull/4113#discussion_r613171410
##########
File path: docs/ddl-of-carbondata.md
##########
@@ -646,6 +647,69 @@ CarbonData DDL statements are documented here,which
includes:
## TABLE MANAGEMENT
+### DESCRIBE COMMAND
+
+Describe column of table and visualize its structure with child fields.
+ ```
+ [DESCRIBE | DESC] COLUMN fieldname[.nestedFieldNames] ON
[db_name.]table_name;
+
+ Examples:
+
+ DESCRIBE COLUMN locationinfo on complexcarbontable;
+
+
+------------------------------+--------------------------------------------------------------------------------------------------------------------+-------+
+ |col_name |data_type
|comment|
+
+------------------------------+--------------------------------------------------------------------------------------------------------------------+-------+
+ |locationinfo |array
|null
|
+ |## Children of locationinfo: |
|
|
+ |item
|struct<activeprovince:string,activecity:map<string,string>,activedistrict:string,activestreet:array<string>>
|null |
+
+------------------------------+--------------------------------------------------------------------------------------------------------------------+-------+
+
+ DESCRIBE COLUMN locationinfo.item on complexcarbontable
+
+ +-----------------------------------+------------------+-------+
+ |col_name |data_type |comment|
+ +-----------------------------------+------------------+-------+
+ |locationinfo.item |struct |null |
Review comment:
updated the example where the comment is not null.
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