Github user ajantha-bhat commented on a diff in the pull request:
https://github.com/apache/carbondata/pull/2502#discussion_r202694366
--- Diff: docs/data-management-on-carbondata.md ---
@@ -290,6 +292,7 @@ This tutorial is going to introduce all commands and
data operations on CarbonDa
```
ALTER TABLE carbon ADD COLUMNS (a1 INT, b1 STRING)
TBLPROPERTIES('DEFAULT.VALUE.a1'='10')
```
+ NOTE: Add Complex datatype columns is not supported.
- **DROP COLUMNS**
--- End diff --
complex child columns drop is not supported. Update this point.
---
