[GitHub] [carbondata] nihal0107 commented on a change in pull request #3959: [CARBONDATA-4010] Doc changes for long strings.

[GitBox]

nihal0107 commented on a change in pull request #3959:
URL: https://github.com/apache/carbondata/pull/3959#discussion_r501158701



##
File path: docs/ddl-of-carbondata.md
##
@@ -812,7 +813,19 @@ Users can specify which columns to include and exclude for 
local dictionary gene
```
ALTER TABLE tablename UNSET TBLPROPERTIES('SORT_SCOPE')
```
+ - # Long String Columns
+   Example to SET Long String Columns:
+   ```
+   ALTER TABLE tablename SET TBLPROPERTIES('LONG_STRING_COLUMNS'='column1')
+   ```
+   **NOTE:** Only string columns can be set to long string columns. Cannot 
set sort columns to long string columns.
 
+   Example to UNSET Long String Columns:
+   ```
+   ALTER TABLE tablename UNSET TBLPROPERTIES('LONG_STRING_COLUMNS')
+   ```
+   **NOTE:** On unset long string columns are set to their original 
datatypes.

Review comment:
   done





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[GitHub] [carbondata] nihal0107 commented on a change in pull request #3959: [CARBONDATA-4010] Doc changes for long strings.

[GitBox]

nihal0107 commented on a change in pull request #3959:
URL: https://github.com/apache/carbondata/pull/3959#discussion_r500254558



##
File path: docs/ddl-of-carbondata.md
##
@@ -426,7 +426,8 @@ CarbonData DDL statements are documented here,which 
includes:
- # String longer than 32000 characters
 
  In common scenarios, the length of string is less than 32000,
- so carbondata stores the length of content using Short to reduce memory 
and space consumption.
+ so carbondata stores the length of content using Short to reduce memory 
and space consumption, and it handles the strings
+ which length greater than 32000 as bad record. Refer [bad record 
handling](https://github.com/apache/carbondata/blob/master/docs/dml-of-carbondata.md#bad-records-handling)
 section for better understanding.

Review comment:
   done





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