xubo245 commented on a change in pull request #3033: [CARBONDATA-3215] Optimize the documentation
URL:
https://github.com/apache/carbondata/pull/3033#discussion_r247430610
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File path: docs/datamap-developer-guide.md
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@@ -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.
Review comment:
Do I need change belongs => belong?
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