Github user jihoonson commented on a diff in the pull request:
https://github.com/apache/tajo/pull/352#discussion_r23140577
--- Diff: tajo-docs/src/main/sphinx/hbase_integration.rst ---
@@ -0,0 +1,181 @@
+*************************************
+HBase Integration
+*************************************
+
+Apache Tajo⢠storage supports integration with Apache HBaseâ¢.
+This integration allows Tajo to access all tables used in Apache HBase.
+
+In order to use this feature, you need to build add some configs into
``conf/tajo-env.sh`` and then add some properties into a table create statement.
+
+This section describes how to setup HBase integration.
+
+First, you need to set your HBase home directory to the environment
variable ``HBASE_HOME`` in conf/tajo-env.sh as follows: ::
+
+ export HBASE_HOME=/path/to/your/hive/directory
+
+If you set the directory, Tajo will add HBase library file to classpath.
+
+
+
+========================
+CREATE TABLE
+========================
+
+*Synopsis*
+
+.. code-block:: sql
+
+ CREATE [EXTERNAL] TABLE [IF NOT EXISTS] <table_name> [(<column_name>
<data_type>, ... )]
+ USING hbase
+ WITH ('table'='<hbase_table_name>'
+ , 'columns'=':key,<column_family_name>:<qualifier_name>, ...'
+ , 'hbase.zookeeper.quorum'='<zookeeper_address>')
+
+Options
+
+* ``table`` : Set hbase origin table name. If you want to create an
external table, the table must exists on HBase. The other way, if you want to
create a managed table, the table must doesn't exist on HBase.
+* ``columns`` : :key means HBase row key. The number of columns entry need
to equals to the number of Tajo table column
+* ``hbase.zookeeper.quorum`` : Set zookeeper quorum address. You can use
different zookeeper cluster on the same Tajo database. If you don't set the
zookeeper address, Tajo will refer the property of hbase-site.xml file.
+
+
+``IF NOT EXISTS`` allows ``CREATE [EXTERNAL] TABLE`` statement to avoid an
error which occurs when the table does not exist.
+
+
+
+========================
+ DROP TABLE
+========================
+
+*Synopsis*
+
+.. code-block:: sql
+
+ DROP TABLE [IF EXISTS] <table_name> [PURGE]
+
+``IF EXISTS`` allows ``DROP TABLE`` statement to avoid an error which
occurs when the database does not exist. ``DROP TABLE`` statement removes a
table from Tajo catalog, but it does not remove the contents on HBase cluster.
If ``PURGE`` option is given, ``DROP TABLE`` statement will eliminate the entry
in the catalog as well as the contents on HBase cluster.
--- End diff --
In the first statement, you may mean the ```table``` instead of the
```database```.
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