Github user jihoonson commented on a diff in the pull request:
https://github.com/apache/tajo/pull/887#discussion_r46380644
--- Diff: tajo-docs/src/main/sphinx/index/how_to_use.rst ---
@@ -1,18 +1,19 @@
-*************************************
+*****************
How to use index?
-*************************************
+*****************
--------------------------------------
+---------------
1. Create index
--------------------------------------
+---------------
-The first step for utilizing index is index creation. You can create index
using SQL (:doc:`/sql_language/ddl`) or Tajo API (:doc:`/tajo_client_api`). For
example, you can create a BST index on the lineitem table by submitting the
following SQL to Tajo.
+The first step for utilizing index is to create an index. You can create
an index using SQL (:doc:`/sql_language/ddl`) or Tajo API
(:doc:`/tajo_client_api`).
+For example, the following SQL statement can be used to create a BST index
on the lineitem table.
--- End diff --
Done.
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