Github user sraghunandan commented on a diff in the pull request:
https://github.com/apache/carbondata/pull/3033#discussion_r247000712
--- Diff: docs/datamap-developer-guide.md ---
@@ -19,16 +19,16 @@
### Introduction
DataMap is a data structure that can be used to accelerate certain query
of the table. Different DataMap can be implemented by developers.
-Currently, there are two 2 types of DataMap supported:
-1. IndexDataMap: DataMap that leverages index to accelerate filter query
-2. MVDataMap: DataMap that leverages Materialized View to accelerate OLAP
style query, like SPJG query (select, predicate, join, groupby)
+Currently, there are two types of DataMap supported:
+1. IndexDataMap: DataMap that leverages index to accelerate filter query,
including Lucene DataMap and BloomFilter DataMap.
--- End diff --
I feel it is better to use "....acclerate filter query. Lucene DataMap and
BloomFiler DataMap belongs to this type of DataMaps"
similar to MV
---
