Github user akashrn5 commented on a diff in the pull request:
https://github.com/apache/carbondata/pull/2215#discussion_r189507649
--- Diff: docs/datamap/lucene-datamap-guide.md ---
@@ -0,0 +1,133 @@
+# CarbonData Lucene DataMap (Alpha feature in 1.4.0)
+
+* [DataMap Management](#datamap-management)
+* [Lucene Datamap](#lucene-datamap-introduction)
+* [Loading Data](#loading-data)
+* [Querying Data](#querying-data)
+* [Data Management](#data-management-with-pre-aggregate-tables)
--- End diff --
yes, i think the same, and about refresh im also not sure about how it
works, so this PR will be specific to lucene,
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