[CARBONDATA-2918] NPE If SDK sort column is not same case as schema

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Assignee: Ajantha Bhat
• Reporter: Ajantha Bhat
• Created: 05/Sep/18 06:45
• Updated: 05/Sep/18 11:32

Description

problem:
Currently in CarbonWriterBuilder,  
sortColumnsList.indexOf(field.getFieldName()) return null due to case issue. so, one of the sortcolumns in array will be null. so one of the column schema becomes null,
hence when column schema is accessed, we get NPE

solution: Make sort columns as case insensitive..

Change pareant column (as sort column is supported only foro parent columns) name to lower case when schema received by the user
and change sort columns also to lower case when received by the user.