Github user sraghunandan commented on a diff in the pull request:
https://github.com/apache/carbondata/pull/2788#discussion_r222638610
--- Diff: docs/ddl-of-carbondata.md ---
@@ -610,25 +611,29 @@ Users can specify which columns to include and
exclude for local dictionary gene
- ##### DROP COLUMNS
This command is used to delete the existing column(s) in a table.
- ```
+
+ ```
ALTER TABLE [db_name.]table_name DROP COLUMNS (col_name, ...)
```
Examples:
- ```
+
+ ```
ALTER TABLE carbon DROP COLUMNS (b1)
OR
ALTER TABLE test_db.carbon DROP COLUMNS (b1)
ALTER TABLE carbon DROP COLUMNS (c1,d1)
```
- NOTE: Drop Complex child column is not supported.
+
+ **NOTE:** Drop Complex child column is not supported.
- ##### CHANGE DATA TYPE
This command is used to change the data type from INT to BIGINT or
decimal precision from lower to higher.
Change of decimal data type from lower precision to higher precision
will only be supported for cases where there is no data loss.
- ```
+
+ ```
--- End diff --
correct in other places as well
---
