Github user ravipesala commented on a diff in the pull request:
https://github.com/apache/carbondata/pull/2801#discussion_r223623791
--- Diff: docs/ddl-of-carbondata.md ---
@@ -173,14 +174,24 @@ CarbonData DDL statements are documented here,which
includes:
- ##### Table Block Size Configuration
- This command is for setting block size of this table, the default
value is 1024 MB and supports a range of 1 MB to 2048 MB.
+ This property is for setting block size of this table, the default
value is 1024 MB and supports a range of 1 MB to 2048 MB.
```
TBLPROPERTIES ('TABLE_BLOCKSIZE'='512')
```
-
+
**NOTE:** 512 or 512M both are accepted.
+ - ##### Table Blocklet Size Configuration
+
+ This property is for setting blocklet size in the carbondata file,
the default value is 64 MB.
+ Blocklet is the minimum IO read unit, so the smaller the value, the
better it is for filtering queries.
--- End diff --
I feel this statement may mislead users because if we reduce IO unit size,
number of IO operations become more and it hits the performance. It would be
better in case of point queries not all filter queries, so better mention point
queries not all filter queries
---
