Github user akashrn5 commented on a diff in the pull request:
https://github.com/apache/carbondata/pull/2829#discussion_r228124241
--- Diff: format/src/main/thrift/carbondata.thrift ---
@@ -206,6 +206,7 @@ struct FileFooter3{
4: optional list<BlockletInfo3> blocklet_info_list3; // Information
about blocklets of all columns in this file for V3 format
5: optional dictionary.ColumnDictionaryChunk dictionary; // Blocklet
local dictionary
6: optional bool is_sort; // True if the data is sorted in this file,
it is used for compaction to decide whether to use merge sort or not
+ 7: optional map<string, string> extra_info; // written by is used to
write who wrote the file, it can be Aplication name, or SDK etc and version in
which this carbondata file is written etc
--- End diff --
modified
---
