Github user sraghunandan commented on a diff in the pull request:
https://github.com/apache/carbondata/pull/2632#discussion_r210797873
--- Diff: docs/datamap/lucene-datamap-guide.md ---
@@ -70,42 +66,38 @@ It will show all DataMaps created on main table.
USING 'lucene'
DMPROPERTIES ('INDEX_COLUMNS' = 'name, country',)
```
-
-**DMProperties**
-1. INDEX_COLUMNS: The list of string columns on which lucene creates
indexes.
-2. FLUSH_CACHE: size of the cache to maintain in Lucene writer, if
specified then it tries to
- aggregate the unique data till the cache limit and flush to Lucene. It
is best suitable for low
- cardinality dimensions.
-3. SPLIT_BLOCKLET: when made as true then store the data in blocklet wise
in lucene , it means new
- folder will be created for each blocklet, thus, it eliminates storing
blockletid in lucene and
- also it makes lucene small chunks of data.
+**Properties for Lucene DataMap**
--- End diff --
we need to mention what type of data types are supported as a separate
section
---
