Github user ravipesala commented on a diff in the pull request:
https://github.com/apache/carbondata/pull/1751#discussion_r159829085
--- Diff: format/src/main/thrift/carbondata.thrift ---
@@ -45,6 +45,7 @@ struct BlockletBTreeIndex{
struct BlockletMinMaxIndex{
1: required list<binary> min_values; //Min value of all columns of one
blocklet Bit-Packed
2: required list<binary> max_values; //Max value of all columns of one
blocklet Bit-Packed
+ 3: optional list<byte> null_value; // Null Bool turn on if null
value present.
--- End diff --
Better use binary and try to use BitSet for null values
---
