[GitHub] [carbondata] Indhumathi27 commented on a change in pull request #4113: [CARBONDATA-4161] Describe complex columns

Posted by GitBox on Apr 08, 2021; 7:04am
URL: http://apache-carbondata-dev-mailing-list-archive.168.s1.nabble.com/GitHub-carbondata-ShreelekhyaG-opened-a-new-pull-request-4113-WIP-Describe-complex-columns-tp107265p107455.html


Indhumathi27 commented on a change in pull request #4113:
URL: https://github.com/apache/carbondata/pull/4113#discussion_r609374954



##########
File path: docs/ddl-of-carbondata.md
##########
@@ -646,6 +647,28 @@ CarbonData DDL statements are documented here,which includes:
 
 ## TABLE MANAGEMENT  
 
+### DESCRIBE COMMAND
+
+Describe column of table and visualize its structure with child fields.
+  ```
+  DESCRIBE COLUMN fieldname[.nestedFieldNames] ON [db_name.]table_name;
+
+  Example: DESCRIBE COLUMN channelsId ON carbonTable;

Review comment:
       Can add some examples to query Array child, since have to provide arr_name.item




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