http://git-wip-us.apache.org/repos/asf/incubator-hawq-site/blob/cce3ea48/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_filespace.html
----------------------------------------------------------------------
diff --git 
a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_filespace.html 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_filespace.html
index ba0a733..a87e42e 100644
--- a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_filespace.html
+++ b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_filespace.html
@@ -129,11 +129,13 @@
           <li>
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/setuphawqopenv.html">Introducing 
the HAWQ Operating Environment</a>
           </li>
-          <li>
+          <li class="has_submenu">
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-admin.html">Managing HAWQ 
Using Ambari</a>
-          </li>
-          <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-rest-api.html">Using the 
Ambari REST API</a>
+           <ul>
+            <li>
+              <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-rest-api.html">Using the 
Ambari REST API</a>
+            </li>
+           </ul>
           </li>
           <li>
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/startstop.html">Starting and 
Stopping HAWQ</a>
@@ -413,6 +415,7 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HivePXF.html">Accessing Hive 
Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HBasePXF.html">Accessing HBase 
Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/JsonPXF.html">Accessing JSON 
Data</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HDFSWritablePXF.html">Writing Data 
to HDFS</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/ReadWritePXF.html">Using Profiles 
to Read and Write Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/PXFExternalTableandAPIReference.html">PXF
 External Tables and API</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/TroubleshootingPXF.html">Troubleshooting
 PXF</a></li>
@@ -740,6 +743,7 @@
             <ul>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ABORT.html">ABORT</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-AGGREGATE.html">ALTER
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-CONVERSION.html">ALTER
 CONVERSION</a></li>  
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-DATABASE.html">ALTER
 DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-FUNCTION.html">ALTER
 FUNCTION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-OPERATOR.html">ALTER
 OPERATOR</a></li>
@@ -757,6 +761,8 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/COMMIT.html">COMMIT</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/COPY.html">COPY</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-AGGREGATE.html">CREATE
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-CAST.html">CREATE 
CAST</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-CONVERSION.html">CREATE
 CONVERSION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-DATABASE.html">CREATE
 DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-EXTERNAL-TABLE.html">CREATE
 EXTERNAL TABLE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-FUNCTION.html">CREATE
 FUNCTION</a></li>
@@ -777,6 +783,8 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DEALLOCATE.html">DEALLOCATE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DECLARE.html">DECLARE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-AGGREGATE.html">DROP
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-CAST.html">DROP 
CAST</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-CONVERSION.html">DROP
 CONVERSION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-DATABASE.html">DROP 
DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-EXTERNAL-TABLE.html">DROP
 EXTERNAL TABLE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-FILESPACE.html">DROP
 FILESPACE</a></li>

http://git-wip-us.apache.org/repos/asf/incubator-hawq-site/blob/cce3ea48/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_filespace_entry.html
----------------------------------------------------------------------
diff --git 
a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_filespace_entry.html 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_filespace_entry.html
index 5e58c55..4955a4f 100644
--- 
a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_filespace_entry.html
+++ 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_filespace_entry.html
@@ -129,11 +129,13 @@
           <li>
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/setuphawqopenv.html">Introducing 
the HAWQ Operating Environment</a>
           </li>
-          <li>
+          <li class="has_submenu">
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-admin.html">Managing HAWQ 
Using Ambari</a>
-          </li>
-          <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-rest-api.html">Using the 
Ambari REST API</a>
+           <ul>
+            <li>
+              <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-rest-api.html">Using the 
Ambari REST API</a>
+            </li>
+           </ul>
           </li>
           <li>
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/startstop.html">Starting and 
Stopping HAWQ</a>
@@ -413,6 +415,7 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HivePXF.html">Accessing Hive 
Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HBasePXF.html">Accessing HBase 
Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/JsonPXF.html">Accessing JSON 
Data</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HDFSWritablePXF.html">Writing Data 
to HDFS</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/ReadWritePXF.html">Using Profiles 
to Read and Write Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/PXFExternalTableandAPIReference.html">PXF
 External Tables and API</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/TroubleshootingPXF.html">Troubleshooting
 PXF</a></li>
@@ -740,6 +743,7 @@
             <ul>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ABORT.html">ABORT</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-AGGREGATE.html">ALTER
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-CONVERSION.html">ALTER
 CONVERSION</a></li>  
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-DATABASE.html">ALTER
 DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-FUNCTION.html">ALTER
 FUNCTION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-OPERATOR.html">ALTER
 OPERATOR</a></li>
@@ -757,6 +761,8 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/COMMIT.html">COMMIT</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/COPY.html">COPY</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-AGGREGATE.html">CREATE
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-CAST.html">CREATE 
CAST</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-CONVERSION.html">CREATE
 CONVERSION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-DATABASE.html">CREATE
 DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-EXTERNAL-TABLE.html">CREATE
 EXTERNAL TABLE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-FUNCTION.html">CREATE
 FUNCTION</a></li>
@@ -777,6 +783,8 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DEALLOCATE.html">DEALLOCATE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DECLARE.html">DECLARE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-AGGREGATE.html">DROP
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-CAST.html">DROP 
CAST</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-CONVERSION.html">DROP
 CONVERSION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-DATABASE.html">DROP 
DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-EXTERNAL-TABLE.html">DROP
 EXTERNAL TABLE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-FILESPACE.html">DROP
 FILESPACE</a></li>

http://git-wip-us.apache.org/repos/asf/incubator-hawq-site/blob/cce3ea48/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_index.html
----------------------------------------------------------------------
diff --git a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_index.html 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_index.html
index a457181..8a7f66d 100644
--- a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_index.html
+++ b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_index.html
@@ -129,11 +129,13 @@
           <li>
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/setuphawqopenv.html">Introducing 
the HAWQ Operating Environment</a>
           </li>
-          <li>
+          <li class="has_submenu">
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-admin.html">Managing HAWQ 
Using Ambari</a>
-          </li>
-          <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-rest-api.html">Using the 
Ambari REST API</a>
+           <ul>
+            <li>
+              <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-rest-api.html">Using the 
Ambari REST API</a>
+            </li>
+           </ul>
           </li>
           <li>
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/startstop.html">Starting and 
Stopping HAWQ</a>
@@ -413,6 +415,7 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HivePXF.html">Accessing Hive 
Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HBasePXF.html">Accessing HBase 
Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/JsonPXF.html">Accessing JSON 
Data</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HDFSWritablePXF.html">Writing Data 
to HDFS</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/ReadWritePXF.html">Using Profiles 
to Read and Write Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/PXFExternalTableandAPIReference.html">PXF
 External Tables and API</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/TroubleshootingPXF.html">Troubleshooting
 PXF</a></li>
@@ -740,6 +743,7 @@
             <ul>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ABORT.html">ABORT</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-AGGREGATE.html">ALTER
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-CONVERSION.html">ALTER
 CONVERSION</a></li>  
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-DATABASE.html">ALTER
 DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-FUNCTION.html">ALTER
 FUNCTION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-OPERATOR.html">ALTER
 OPERATOR</a></li>
@@ -757,6 +761,8 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/COMMIT.html">COMMIT</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/COPY.html">COPY</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-AGGREGATE.html">CREATE
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-CAST.html">CREATE 
CAST</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-CONVERSION.html">CREATE
 CONVERSION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-DATABASE.html">CREATE
 DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-EXTERNAL-TABLE.html">CREATE
 EXTERNAL TABLE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-FUNCTION.html">CREATE
 FUNCTION</a></li>
@@ -777,6 +783,8 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DEALLOCATE.html">DEALLOCATE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DECLARE.html">DECLARE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-AGGREGATE.html">DROP
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-CAST.html">DROP 
CAST</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-CONVERSION.html">DROP
 CONVERSION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-DATABASE.html">DROP 
DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-EXTERNAL-TABLE.html">DROP
 EXTERNAL TABLE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-FILESPACE.html">DROP
 FILESPACE</a></li>

http://git-wip-us.apache.org/repos/asf/incubator-hawq-site/blob/cce3ea48/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_inherits.html
----------------------------------------------------------------------
diff --git 
a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_inherits.html 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_inherits.html
index d92c077..4da121c 100644
--- a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_inherits.html
+++ b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_inherits.html
@@ -129,11 +129,13 @@
           <li>
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/setuphawqopenv.html">Introducing 
the HAWQ Operating Environment</a>
           </li>
-          <li>
+          <li class="has_submenu">
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-admin.html">Managing HAWQ 
Using Ambari</a>
-          </li>
-          <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-rest-api.html">Using the 
Ambari REST API</a>
+           <ul>
+            <li>
+              <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-rest-api.html">Using the 
Ambari REST API</a>
+            </li>
+           </ul>
           </li>
           <li>
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/startstop.html">Starting and 
Stopping HAWQ</a>
@@ -413,6 +415,7 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HivePXF.html">Accessing Hive 
Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HBasePXF.html">Accessing HBase 
Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/JsonPXF.html">Accessing JSON 
Data</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HDFSWritablePXF.html">Writing Data 
to HDFS</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/ReadWritePXF.html">Using Profiles 
to Read and Write Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/PXFExternalTableandAPIReference.html">PXF
 External Tables and API</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/TroubleshootingPXF.html">Troubleshooting
 PXF</a></li>
@@ -740,6 +743,7 @@
             <ul>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ABORT.html">ABORT</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-AGGREGATE.html">ALTER
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-CONVERSION.html">ALTER
 CONVERSION</a></li>  
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-DATABASE.html">ALTER
 DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-FUNCTION.html">ALTER
 FUNCTION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-OPERATOR.html">ALTER
 OPERATOR</a></li>
@@ -757,6 +761,8 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/COMMIT.html">COMMIT</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/COPY.html">COPY</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-AGGREGATE.html">CREATE
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-CAST.html">CREATE 
CAST</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-CONVERSION.html">CREATE
 CONVERSION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-DATABASE.html">CREATE
 DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-EXTERNAL-TABLE.html">CREATE
 EXTERNAL TABLE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-FUNCTION.html">CREATE
 FUNCTION</a></li>
@@ -777,6 +783,8 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DEALLOCATE.html">DEALLOCATE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DECLARE.html">DECLARE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-AGGREGATE.html">DROP
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-CAST.html">DROP 
CAST</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-CONVERSION.html">DROP
 CONVERSION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-DATABASE.html">DROP 
DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-EXTERNAL-TABLE.html">DROP
 EXTERNAL TABLE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-FILESPACE.html">DROP
 FILESPACE</a></li>

http://git-wip-us.apache.org/repos/asf/incubator-hawq-site/blob/cce3ea48/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_language.html
----------------------------------------------------------------------
diff --git 
a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_language.html 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_language.html
index ad0d407..cb9eef0 100644
--- a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_language.html
+++ b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_language.html
@@ -129,11 +129,13 @@
           <li>
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/setuphawqopenv.html">Introducing 
the HAWQ Operating Environment</a>
           </li>
-          <li>
+          <li class="has_submenu">
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-admin.html">Managing HAWQ 
Using Ambari</a>
-          </li>
-          <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-rest-api.html">Using the 
Ambari REST API</a>
+           <ul>
+            <li>
+              <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-rest-api.html">Using the 
Ambari REST API</a>
+            </li>
+           </ul>
           </li>
           <li>
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/startstop.html">Starting and 
Stopping HAWQ</a>
@@ -413,6 +415,7 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HivePXF.html">Accessing Hive 
Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HBasePXF.html">Accessing HBase 
Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/JsonPXF.html">Accessing JSON 
Data</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HDFSWritablePXF.html">Writing Data 
to HDFS</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/ReadWritePXF.html">Using Profiles 
to Read and Write Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/PXFExternalTableandAPIReference.html">PXF
 External Tables and API</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/TroubleshootingPXF.html">Troubleshooting
 PXF</a></li>
@@ -740,6 +743,7 @@
             <ul>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ABORT.html">ABORT</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-AGGREGATE.html">ALTER
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-CONVERSION.html">ALTER
 CONVERSION</a></li>  
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-DATABASE.html">ALTER
 DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-FUNCTION.html">ALTER
 FUNCTION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-OPERATOR.html">ALTER
 OPERATOR</a></li>
@@ -757,6 +761,8 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/COMMIT.html">COMMIT</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/COPY.html">COPY</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-AGGREGATE.html">CREATE
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-CAST.html">CREATE 
CAST</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-CONVERSION.html">CREATE
 CONVERSION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-DATABASE.html">CREATE
 DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-EXTERNAL-TABLE.html">CREATE
 EXTERNAL TABLE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-FUNCTION.html">CREATE
 FUNCTION</a></li>
@@ -777,6 +783,8 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DEALLOCATE.html">DEALLOCATE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DECLARE.html">DECLARE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-AGGREGATE.html">DROP
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-CAST.html">DROP 
CAST</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-CONVERSION.html">DROP
 CONVERSION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-DATABASE.html">DROP 
DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-EXTERNAL-TABLE.html">DROP
 EXTERNAL TABLE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-FILESPACE.html">DROP
 FILESPACE</a></li>

http://git-wip-us.apache.org/repos/asf/incubator-hawq-site/blob/cce3ea48/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_largeobject.html
----------------------------------------------------------------------
diff --git 
a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_largeobject.html 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_largeobject.html
index e081738..ad97238 100644
--- a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_largeobject.html
+++ b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_largeobject.html
@@ -129,11 +129,13 @@
           <li>
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/setuphawqopenv.html">Introducing 
the HAWQ Operating Environment</a>
           </li>
-          <li>
+          <li class="has_submenu">
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-admin.html">Managing HAWQ 
Using Ambari</a>
-          </li>
-          <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-rest-api.html">Using the 
Ambari REST API</a>
+           <ul>
+            <li>
+              <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-rest-api.html">Using the 
Ambari REST API</a>
+            </li>
+           </ul>
           </li>
           <li>
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/startstop.html">Starting and 
Stopping HAWQ</a>
@@ -413,6 +415,7 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HivePXF.html">Accessing Hive 
Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HBasePXF.html">Accessing HBase 
Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/JsonPXF.html">Accessing JSON 
Data</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HDFSWritablePXF.html">Writing Data 
to HDFS</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/ReadWritePXF.html">Using Profiles 
to Read and Write Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/PXFExternalTableandAPIReference.html">PXF
 External Tables and API</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/TroubleshootingPXF.html">Troubleshooting
 PXF</a></li>
@@ -740,6 +743,7 @@
             <ul>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ABORT.html">ABORT</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-AGGREGATE.html">ALTER
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-CONVERSION.html">ALTER
 CONVERSION</a></li>  
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-DATABASE.html">ALTER
 DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-FUNCTION.html">ALTER
 FUNCTION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-OPERATOR.html">ALTER
 OPERATOR</a></li>
@@ -757,6 +761,8 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/COMMIT.html">COMMIT</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/COPY.html">COPY</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-AGGREGATE.html">CREATE
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-CAST.html">CREATE 
CAST</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-CONVERSION.html">CREATE
 CONVERSION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-DATABASE.html">CREATE
 DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-EXTERNAL-TABLE.html">CREATE
 EXTERNAL TABLE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-FUNCTION.html">CREATE
 FUNCTION</a></li>
@@ -777,6 +783,8 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DEALLOCATE.html">DEALLOCATE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DECLARE.html">DECLARE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-AGGREGATE.html">DROP
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-CAST.html">DROP 
CAST</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-CONVERSION.html">DROP
 CONVERSION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-DATABASE.html">DROP 
DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-EXTERNAL-TABLE.html">DROP
 EXTERNAL TABLE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-FILESPACE.html">DROP
 FILESPACE</a></li>

http://git-wip-us.apache.org/repos/asf/incubator-hawq-site/blob/cce3ea48/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_listener.html
----------------------------------------------------------------------
diff --git 
a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_listener.html 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_listener.html
index e3611d2..bacd22e 100644
--- a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_listener.html
+++ b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_listener.html
@@ -129,11 +129,13 @@
           <li>
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/setuphawqopenv.html">Introducing 
the HAWQ Operating Environment</a>
           </li>
-          <li>
+          <li class="has_submenu">
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-admin.html">Managing HAWQ 
Using Ambari</a>
-          </li>
-          <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-rest-api.html">Using the 
Ambari REST API</a>
+           <ul>
+            <li>
+              <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-rest-api.html">Using the 
Ambari REST API</a>
+            </li>
+           </ul>
           </li>
           <li>
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/startstop.html">Starting and 
Stopping HAWQ</a>
@@ -413,6 +415,7 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HivePXF.html">Accessing Hive 
Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HBasePXF.html">Accessing HBase 
Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/JsonPXF.html">Accessing JSON 
Data</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HDFSWritablePXF.html">Writing Data 
to HDFS</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/ReadWritePXF.html">Using Profiles 
to Read and Write Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/PXFExternalTableandAPIReference.html">PXF
 External Tables and API</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/TroubleshootingPXF.html">Troubleshooting
 PXF</a></li>
@@ -740,6 +743,7 @@
             <ul>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ABORT.html">ABORT</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-AGGREGATE.html">ALTER
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-CONVERSION.html">ALTER
 CONVERSION</a></li>  
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-DATABASE.html">ALTER
 DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-FUNCTION.html">ALTER
 FUNCTION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-OPERATOR.html">ALTER
 OPERATOR</a></li>
@@ -757,6 +761,8 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/COMMIT.html">COMMIT</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/COPY.html">COPY</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-AGGREGATE.html">CREATE
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-CAST.html">CREATE 
CAST</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-CONVERSION.html">CREATE
 CONVERSION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-DATABASE.html">CREATE
 DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-EXTERNAL-TABLE.html">CREATE
 EXTERNAL TABLE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-FUNCTION.html">CREATE
 FUNCTION</a></li>
@@ -777,6 +783,8 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DEALLOCATE.html">DEALLOCATE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DECLARE.html">DECLARE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-AGGREGATE.html">DROP
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-CAST.html">DROP 
CAST</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-CONVERSION.html">DROP
 CONVERSION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-DATABASE.html">DROP 
DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-EXTERNAL-TABLE.html">DROP
 EXTERNAL TABLE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-FILESPACE.html">DROP
 FILESPACE</a></li>

http://git-wip-us.apache.org/repos/asf/incubator-hawq-site/blob/cce3ea48/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_locks.html
----------------------------------------------------------------------
diff --git a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_locks.html 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_locks.html
index 366c960..6bff5f3 100644
--- a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_locks.html
+++ b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_locks.html
@@ -129,11 +129,13 @@
           <li>
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/setuphawqopenv.html">Introducing 
the HAWQ Operating Environment</a>
           </li>
-          <li>
+          <li class="has_submenu">
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-admin.html">Managing HAWQ 
Using Ambari</a>
-          </li>
-          <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-rest-api.html">Using the 
Ambari REST API</a>
+           <ul>
+            <li>
+              <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-rest-api.html">Using the 
Ambari REST API</a>
+            </li>
+           </ul>
           </li>
           <li>
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/startstop.html">Starting and 
Stopping HAWQ</a>
@@ -413,6 +415,7 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HivePXF.html">Accessing Hive 
Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HBasePXF.html">Accessing HBase 
Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/JsonPXF.html">Accessing JSON 
Data</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HDFSWritablePXF.html">Writing Data 
to HDFS</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/ReadWritePXF.html">Using Profiles 
to Read and Write Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/PXFExternalTableandAPIReference.html">PXF
 External Tables and API</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/TroubleshootingPXF.html">Troubleshooting
 PXF</a></li>
@@ -740,6 +743,7 @@
             <ul>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ABORT.html">ABORT</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-AGGREGATE.html">ALTER
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-CONVERSION.html">ALTER
 CONVERSION</a></li>  
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-DATABASE.html">ALTER
 DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-FUNCTION.html">ALTER
 FUNCTION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-OPERATOR.html">ALTER
 OPERATOR</a></li>
@@ -757,6 +761,8 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/COMMIT.html">COMMIT</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/COPY.html">COPY</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-AGGREGATE.html">CREATE
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-CAST.html">CREATE 
CAST</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-CONVERSION.html">CREATE
 CONVERSION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-DATABASE.html">CREATE
 DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-EXTERNAL-TABLE.html">CREATE
 EXTERNAL TABLE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-FUNCTION.html">CREATE
 FUNCTION</a></li>
@@ -777,6 +783,8 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DEALLOCATE.html">DEALLOCATE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DECLARE.html">DECLARE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-AGGREGATE.html">DROP
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-CAST.html">DROP 
CAST</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-CONVERSION.html">DROP
 CONVERSION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-DATABASE.html">DROP 
DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-EXTERNAL-TABLE.html">DROP
 EXTERNAL TABLE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-FILESPACE.html">DROP
 FILESPACE</a></li>

http://git-wip-us.apache.org/repos/asf/incubator-hawq-site/blob/cce3ea48/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_namespace.html
----------------------------------------------------------------------
diff --git 
a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_namespace.html 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_namespace.html
index e798d76..6f50831 100644
--- a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_namespace.html
+++ b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_namespace.html
@@ -129,11 +129,13 @@
           <li>
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/setuphawqopenv.html">Introducing 
the HAWQ Operating Environment</a>
           </li>
-          <li>
+          <li class="has_submenu">
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-admin.html">Managing HAWQ 
Using Ambari</a>
-          </li>
-          <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-rest-api.html">Using the 
Ambari REST API</a>
+           <ul>
+            <li>
+              <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-rest-api.html">Using the 
Ambari REST API</a>
+            </li>
+           </ul>
           </li>
           <li>
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/startstop.html">Starting and 
Stopping HAWQ</a>
@@ -413,6 +415,7 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HivePXF.html">Accessing Hive 
Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HBasePXF.html">Accessing HBase 
Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/JsonPXF.html">Accessing JSON 
Data</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HDFSWritablePXF.html">Writing Data 
to HDFS</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/ReadWritePXF.html">Using Profiles 
to Read and Write Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/PXFExternalTableandAPIReference.html">PXF
 External Tables and API</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/TroubleshootingPXF.html">Troubleshooting
 PXF</a></li>
@@ -740,6 +743,7 @@
             <ul>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ABORT.html">ABORT</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-AGGREGATE.html">ALTER
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-CONVERSION.html">ALTER
 CONVERSION</a></li>  
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-DATABASE.html">ALTER
 DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-FUNCTION.html">ALTER
 FUNCTION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-OPERATOR.html">ALTER
 OPERATOR</a></li>
@@ -757,6 +761,8 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/COMMIT.html">COMMIT</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/COPY.html">COPY</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-AGGREGATE.html">CREATE
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-CAST.html">CREATE 
CAST</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-CONVERSION.html">CREATE
 CONVERSION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-DATABASE.html">CREATE
 DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-EXTERNAL-TABLE.html">CREATE
 EXTERNAL TABLE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-FUNCTION.html">CREATE
 FUNCTION</a></li>
@@ -777,6 +783,8 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DEALLOCATE.html">DEALLOCATE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DECLARE.html">DECLARE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-AGGREGATE.html">DROP
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-CAST.html">DROP 
CAST</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-CONVERSION.html">DROP
 CONVERSION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-DATABASE.html">DROP 
DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-EXTERNAL-TABLE.html">DROP
 EXTERNAL TABLE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-FILESPACE.html">DROP
 FILESPACE</a></li>

http://git-wip-us.apache.org/repos/asf/incubator-hawq-site/blob/cce3ea48/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_opclass.html
----------------------------------------------------------------------
diff --git 
a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_opclass.html 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_opclass.html
index f5a7c80..3d8480d 100644
--- a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_opclass.html
+++ b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_opclass.html
@@ -129,11 +129,13 @@
           <li>
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/setuphawqopenv.html">Introducing 
the HAWQ Operating Environment</a>
           </li>
-          <li>
+          <li class="has_submenu">
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-admin.html">Managing HAWQ 
Using Ambari</a>
-          </li>
-          <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-rest-api.html">Using the 
Ambari REST API</a>
+           <ul>
+            <li>
+              <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-rest-api.html">Using the 
Ambari REST API</a>
+            </li>
+           </ul>
           </li>
           <li>
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/startstop.html">Starting and 
Stopping HAWQ</a>
@@ -413,6 +415,7 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HivePXF.html">Accessing Hive 
Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HBasePXF.html">Accessing HBase 
Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/JsonPXF.html">Accessing JSON 
Data</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HDFSWritablePXF.html">Writing Data 
to HDFS</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/ReadWritePXF.html">Using Profiles 
to Read and Write Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/PXFExternalTableandAPIReference.html">PXF
 External Tables and API</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/TroubleshootingPXF.html">Troubleshooting
 PXF</a></li>
@@ -740,6 +743,7 @@
             <ul>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ABORT.html">ABORT</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-AGGREGATE.html">ALTER
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-CONVERSION.html">ALTER
 CONVERSION</a></li>  
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-DATABASE.html">ALTER
 DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-FUNCTION.html">ALTER
 FUNCTION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-OPERATOR.html">ALTER
 OPERATOR</a></li>
@@ -757,6 +761,8 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/COMMIT.html">COMMIT</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/COPY.html">COPY</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-AGGREGATE.html">CREATE
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-CAST.html">CREATE 
CAST</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-CONVERSION.html">CREATE
 CONVERSION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-DATABASE.html">CREATE
 DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-EXTERNAL-TABLE.html">CREATE
 EXTERNAL TABLE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-FUNCTION.html">CREATE
 FUNCTION</a></li>
@@ -777,6 +783,8 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DEALLOCATE.html">DEALLOCATE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DECLARE.html">DECLARE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-AGGREGATE.html">DROP
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-CAST.html">DROP 
CAST</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-CONVERSION.html">DROP
 CONVERSION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-DATABASE.html">DROP 
DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-EXTERNAL-TABLE.html">DROP
 EXTERNAL TABLE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-FILESPACE.html">DROP
 FILESPACE</a></li>

http://git-wip-us.apache.org/repos/asf/incubator-hawq-site/blob/cce3ea48/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_operator.html
----------------------------------------------------------------------
diff --git 
a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_operator.html 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_operator.html
index 948868a..fba6499 100644
--- a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_operator.html
+++ b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_operator.html
@@ -129,11 +129,13 @@
           <li>
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/setuphawqopenv.html">Introducing 
the HAWQ Operating Environment</a>
           </li>
-          <li>
+          <li class="has_submenu">
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-admin.html">Managing HAWQ 
Using Ambari</a>
-          </li>
-          <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-rest-api.html">Using the 
Ambari REST API</a>
+           <ul>
+            <li>
+              <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-rest-api.html">Using the 
Ambari REST API</a>
+            </li>
+           </ul>
           </li>
           <li>
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/startstop.html">Starting and 
Stopping HAWQ</a>
@@ -413,6 +415,7 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HivePXF.html">Accessing Hive 
Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HBasePXF.html">Accessing HBase 
Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/JsonPXF.html">Accessing JSON 
Data</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HDFSWritablePXF.html">Writing Data 
to HDFS</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/ReadWritePXF.html">Using Profiles 
to Read and Write Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/PXFExternalTableandAPIReference.html">PXF
 External Tables and API</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/TroubleshootingPXF.html">Troubleshooting
 PXF</a></li>
@@ -740,6 +743,7 @@
             <ul>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ABORT.html">ABORT</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-AGGREGATE.html">ALTER
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-CONVERSION.html">ALTER
 CONVERSION</a></li>  
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-DATABASE.html">ALTER
 DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-FUNCTION.html">ALTER
 FUNCTION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-OPERATOR.html">ALTER
 OPERATOR</a></li>
@@ -757,6 +761,8 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/COMMIT.html">COMMIT</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/COPY.html">COPY</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-AGGREGATE.html">CREATE
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-CAST.html">CREATE 
CAST</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-CONVERSION.html">CREATE
 CONVERSION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-DATABASE.html">CREATE
 DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-EXTERNAL-TABLE.html">CREATE
 EXTERNAL TABLE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-FUNCTION.html">CREATE
 FUNCTION</a></li>
@@ -777,6 +783,8 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DEALLOCATE.html">DEALLOCATE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DECLARE.html">DECLARE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-AGGREGATE.html">DROP
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-CAST.html">DROP 
CAST</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-CONVERSION.html">DROP
 CONVERSION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-DATABASE.html">DROP 
DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-EXTERNAL-TABLE.html">DROP
 EXTERNAL TABLE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-FILESPACE.html">DROP
 FILESPACE</a></li>

http://git-wip-us.apache.org/repos/asf/incubator-hawq-site/blob/cce3ea48/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_partition.html
----------------------------------------------------------------------
diff --git 
a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_partition.html 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_partition.html
index 3298fb7..083ece0 100644
--- a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_partition.html
+++ b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_partition.html
@@ -129,11 +129,13 @@
           <li>
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/setuphawqopenv.html">Introducing 
the HAWQ Operating Environment</a>
           </li>
-          <li>
+          <li class="has_submenu">
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-admin.html">Managing HAWQ 
Using Ambari</a>
-          </li>
-          <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-rest-api.html">Using the 
Ambari REST API</a>
+           <ul>
+            <li>
+              <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-rest-api.html">Using the 
Ambari REST API</a>
+            </li>
+           </ul>
           </li>
           <li>
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/startstop.html">Starting and 
Stopping HAWQ</a>
@@ -413,6 +415,7 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HivePXF.html">Accessing Hive 
Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HBasePXF.html">Accessing HBase 
Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/JsonPXF.html">Accessing JSON 
Data</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HDFSWritablePXF.html">Writing Data 
to HDFS</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/ReadWritePXF.html">Using Profiles 
to Read and Write Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/PXFExternalTableandAPIReference.html">PXF
 External Tables and API</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/TroubleshootingPXF.html">Troubleshooting
 PXF</a></li>
@@ -740,6 +743,7 @@
             <ul>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ABORT.html">ABORT</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-AGGREGATE.html">ALTER
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-CONVERSION.html">ALTER
 CONVERSION</a></li>  
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-DATABASE.html">ALTER
 DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-FUNCTION.html">ALTER
 FUNCTION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-OPERATOR.html">ALTER
 OPERATOR</a></li>
@@ -757,6 +761,8 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/COMMIT.html">COMMIT</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/COPY.html">COPY</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-AGGREGATE.html">CREATE
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-CAST.html">CREATE 
CAST</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-CONVERSION.html">CREATE
 CONVERSION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-DATABASE.html">CREATE
 DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-EXTERNAL-TABLE.html">CREATE
 EXTERNAL TABLE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-FUNCTION.html">CREATE
 FUNCTION</a></li>
@@ -777,6 +783,8 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DEALLOCATE.html">DEALLOCATE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DECLARE.html">DECLARE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-AGGREGATE.html">DROP
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-CAST.html">DROP 
CAST</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-CONVERSION.html">DROP
 CONVERSION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-DATABASE.html">DROP 
DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-EXTERNAL-TABLE.html">DROP
 EXTERNAL TABLE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-FILESPACE.html">DROP
 FILESPACE</a></li>

http://git-wip-us.apache.org/repos/asf/incubator-hawq-site/blob/cce3ea48/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_partition_columns.html
----------------------------------------------------------------------
diff --git 
a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_partition_columns.html 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_partition_columns.html
index 197dc78..ac2bc2b 100644
--- 
a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_partition_columns.html
+++ 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_partition_columns.html
@@ -129,11 +129,13 @@
           <li>
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/setuphawqopenv.html">Introducing 
the HAWQ Operating Environment</a>
           </li>
-          <li>
+          <li class="has_submenu">
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-admin.html">Managing HAWQ 
Using Ambari</a>
-          </li>
-          <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-rest-api.html">Using the 
Ambari REST API</a>
+           <ul>
+            <li>
+              <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-rest-api.html">Using the 
Ambari REST API</a>
+            </li>
+           </ul>
           </li>
           <li>
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/startstop.html">Starting and 
Stopping HAWQ</a>
@@ -413,6 +415,7 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HivePXF.html">Accessing Hive 
Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HBasePXF.html">Accessing HBase 
Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/JsonPXF.html">Accessing JSON 
Data</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HDFSWritablePXF.html">Writing Data 
to HDFS</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/ReadWritePXF.html">Using Profiles 
to Read and Write Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/PXFExternalTableandAPIReference.html">PXF
 External Tables and API</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/TroubleshootingPXF.html">Troubleshooting
 PXF</a></li>
@@ -740,6 +743,7 @@
             <ul>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ABORT.html">ABORT</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-AGGREGATE.html">ALTER
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-CONVERSION.html">ALTER
 CONVERSION</a></li>  
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-DATABASE.html">ALTER
 DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-FUNCTION.html">ALTER
 FUNCTION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-OPERATOR.html">ALTER
 OPERATOR</a></li>
@@ -757,6 +761,8 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/COMMIT.html">COMMIT</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/COPY.html">COPY</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-AGGREGATE.html">CREATE
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-CAST.html">CREATE 
CAST</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-CONVERSION.html">CREATE
 CONVERSION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-DATABASE.html">CREATE
 DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-EXTERNAL-TABLE.html">CREATE
 EXTERNAL TABLE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-FUNCTION.html">CREATE
 FUNCTION</a></li>
@@ -777,6 +783,8 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DEALLOCATE.html">DEALLOCATE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DECLARE.html">DECLARE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-AGGREGATE.html">DROP
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-CAST.html">DROP 
CAST</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-CONVERSION.html">DROP
 CONVERSION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-DATABASE.html">DROP 
DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-EXTERNAL-TABLE.html">DROP
 EXTERNAL TABLE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-FILESPACE.html">DROP
 FILESPACE</a></li>

http://git-wip-us.apache.org/repos/asf/incubator-hawq-site/blob/cce3ea48/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_partition_encoding.html
----------------------------------------------------------------------
diff --git 
a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_partition_encoding.html
 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_partition_encoding.html
index 45457a4..82883ce 100644
--- 
a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_partition_encoding.html
+++ 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_partition_encoding.html
@@ -129,11 +129,13 @@
           <li>
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/setuphawqopenv.html">Introducing 
the HAWQ Operating Environment</a>
           </li>
-          <li>
+          <li class="has_submenu">
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-admin.html">Managing HAWQ 
Using Ambari</a>
-          </li>
-          <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-rest-api.html">Using the 
Ambari REST API</a>
+           <ul>
+            <li>
+              <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-rest-api.html">Using the 
Ambari REST API</a>
+            </li>
+           </ul>
           </li>
           <li>
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/startstop.html">Starting and 
Stopping HAWQ</a>
@@ -413,6 +415,7 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HivePXF.html">Accessing Hive 
Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HBasePXF.html">Accessing HBase 
Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/JsonPXF.html">Accessing JSON 
Data</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HDFSWritablePXF.html">Writing Data 
to HDFS</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/ReadWritePXF.html">Using Profiles 
to Read and Write Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/PXFExternalTableandAPIReference.html">PXF
 External Tables and API</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/TroubleshootingPXF.html">Troubleshooting
 PXF</a></li>
@@ -740,6 +743,7 @@
             <ul>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ABORT.html">ABORT</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-AGGREGATE.html">ALTER
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-CONVERSION.html">ALTER
 CONVERSION</a></li>  
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-DATABASE.html">ALTER
 DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-FUNCTION.html">ALTER
 FUNCTION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-OPERATOR.html">ALTER
 OPERATOR</a></li>
@@ -757,6 +761,8 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/COMMIT.html">COMMIT</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/COPY.html">COPY</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-AGGREGATE.html">CREATE
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-CAST.html">CREATE 
CAST</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-CONVERSION.html">CREATE
 CONVERSION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-DATABASE.html">CREATE
 DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-EXTERNAL-TABLE.html">CREATE
 EXTERNAL TABLE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-FUNCTION.html">CREATE
 FUNCTION</a></li>
@@ -777,6 +783,8 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DEALLOCATE.html">DEALLOCATE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DECLARE.html">DECLARE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-AGGREGATE.html">DROP
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-CAST.html">DROP 
CAST</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-CONVERSION.html">DROP
 CONVERSION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-DATABASE.html">DROP 
DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-EXTERNAL-TABLE.html">DROP
 EXTERNAL TABLE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-FILESPACE.html">DROP
 FILESPACE</a></li>

http://git-wip-us.apache.org/repos/asf/incubator-hawq-site/blob/cce3ea48/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_partition_rule.html
----------------------------------------------------------------------
diff --git 
a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_partition_rule.html 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_partition_rule.html
index 86b7c0b..29dbfe0 100644
--- a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_partition_rule.html
+++ b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_partition_rule.html
@@ -129,11 +129,13 @@
           <li>
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/setuphawqopenv.html">Introducing 
the HAWQ Operating Environment</a>
           </li>
-          <li>
+          <li class="has_submenu">
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-admin.html">Managing HAWQ 
Using Ambari</a>
-          </li>
-          <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-rest-api.html">Using the 
Ambari REST API</a>
+           <ul>
+            <li>
+              <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-rest-api.html">Using the 
Ambari REST API</a>
+            </li>
+           </ul>
           </li>
           <li>
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/startstop.html">Starting and 
Stopping HAWQ</a>
@@ -413,6 +415,7 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HivePXF.html">Accessing Hive 
Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HBasePXF.html">Accessing HBase 
Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/JsonPXF.html">Accessing JSON 
Data</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HDFSWritablePXF.html">Writing Data 
to HDFS</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/ReadWritePXF.html">Using Profiles 
to Read and Write Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/PXFExternalTableandAPIReference.html">PXF
 External Tables and API</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/TroubleshootingPXF.html">Troubleshooting
 PXF</a></li>
@@ -740,6 +743,7 @@
             <ul>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ABORT.html">ABORT</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-AGGREGATE.html">ALTER
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-CONVERSION.html">ALTER
 CONVERSION</a></li>  
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-DATABASE.html">ALTER
 DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-FUNCTION.html">ALTER
 FUNCTION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-OPERATOR.html">ALTER
 OPERATOR</a></li>
@@ -757,6 +761,8 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/COMMIT.html">COMMIT</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/COPY.html">COPY</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-AGGREGATE.html">CREATE
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-CAST.html">CREATE 
CAST</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-CONVERSION.html">CREATE
 CONVERSION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-DATABASE.html">CREATE
 DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-EXTERNAL-TABLE.html">CREATE
 EXTERNAL TABLE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-FUNCTION.html">CREATE
 FUNCTION</a></li>
@@ -777,6 +783,8 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DEALLOCATE.html">DEALLOCATE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DECLARE.html">DECLARE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-AGGREGATE.html">DROP
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-CAST.html">DROP 
CAST</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-CONVERSION.html">DROP
 CONVERSION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-DATABASE.html">DROP 
DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-EXTERNAL-TABLE.html">DROP
 EXTERNAL TABLE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-FILESPACE.html">DROP
 FILESPACE</a></li>

http://git-wip-us.apache.org/repos/asf/incubator-hawq-site/blob/cce3ea48/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_partition_templates.html
----------------------------------------------------------------------
diff --git 
a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_partition_templates.html
 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_partition_templates.html
index 533d5d3..dd0f6ae 100644
--- 
a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_partition_templates.html
+++ 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_partition_templates.html
@@ -129,11 +129,13 @@
           <li>
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/setuphawqopenv.html">Introducing 
the HAWQ Operating Environment</a>
           </li>
-          <li>
+          <li class="has_submenu">
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-admin.html">Managing HAWQ 
Using Ambari</a>
-          </li>
-          <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-rest-api.html">Using the 
Ambari REST API</a>
+           <ul>
+            <li>
+              <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-rest-api.html">Using the 
Ambari REST API</a>
+            </li>
+           </ul>
           </li>
           <li>
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/startstop.html">Starting and 
Stopping HAWQ</a>
@@ -413,6 +415,7 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HivePXF.html">Accessing Hive 
Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HBasePXF.html">Accessing HBase 
Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/JsonPXF.html">Accessing JSON 
Data</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HDFSWritablePXF.html">Writing Data 
to HDFS</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/ReadWritePXF.html">Using Profiles 
to Read and Write Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/PXFExternalTableandAPIReference.html">PXF
 External Tables and API</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/TroubleshootingPXF.html">Troubleshooting
 PXF</a></li>
@@ -740,6 +743,7 @@
             <ul>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ABORT.html">ABORT</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-AGGREGATE.html">ALTER
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-CONVERSION.html">ALTER
 CONVERSION</a></li>  
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-DATABASE.html">ALTER
 DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-FUNCTION.html">ALTER
 FUNCTION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-OPERATOR.html">ALTER
 OPERATOR</a></li>
@@ -757,6 +761,8 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/COMMIT.html">COMMIT</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/COPY.html">COPY</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-AGGREGATE.html">CREATE
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-CAST.html">CREATE 
CAST</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-CONVERSION.html">CREATE
 CONVERSION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-DATABASE.html">CREATE
 DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-EXTERNAL-TABLE.html">CREATE
 EXTERNAL TABLE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-FUNCTION.html">CREATE
 FUNCTION</a></li>
@@ -777,6 +783,8 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DEALLOCATE.html">DEALLOCATE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DECLARE.html">DECLARE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-AGGREGATE.html">DROP
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-CAST.html">DROP 
CAST</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-CONVERSION.html">DROP
 CONVERSION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-DATABASE.html">DROP 
DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-EXTERNAL-TABLE.html">DROP
 EXTERNAL TABLE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-FILESPACE.html">DROP
 FILESPACE</a></li>

http://git-wip-us.apache.org/repos/asf/incubator-hawq-site/blob/cce3ea48/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_partitions.html
----------------------------------------------------------------------
diff --git 
a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_partitions.html 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_partitions.html
index 583cc7a..3fadfab 100644
--- a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_partitions.html
+++ b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_partitions.html
@@ -129,11 +129,13 @@
           <li>
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/setuphawqopenv.html">Introducing 
the HAWQ Operating Environment</a>
           </li>
-          <li>
+          <li class="has_submenu">
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-admin.html">Managing HAWQ 
Using Ambari</a>
-          </li>
-          <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-rest-api.html">Using the 
Ambari REST API</a>
+           <ul>
+            <li>
+              <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-rest-api.html">Using the 
Ambari REST API</a>
+            </li>
+           </ul>
           </li>
           <li>
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/startstop.html">Starting and 
Stopping HAWQ</a>
@@ -413,6 +415,7 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HivePXF.html">Accessing Hive 
Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HBasePXF.html">Accessing HBase 
Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/JsonPXF.html">Accessing JSON 
Data</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HDFSWritablePXF.html">Writing Data 
to HDFS</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/ReadWritePXF.html">Using Profiles 
to Read and Write Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/PXFExternalTableandAPIReference.html">PXF
 External Tables and API</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/TroubleshootingPXF.html">Troubleshooting
 PXF</a></li>
@@ -740,6 +743,7 @@
             <ul>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ABORT.html">ABORT</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-AGGREGATE.html">ALTER
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-CONVERSION.html">ALTER
 CONVERSION</a></li>  
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-DATABASE.html">ALTER
 DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-FUNCTION.html">ALTER
 FUNCTION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-OPERATOR.html">ALTER
 OPERATOR</a></li>
@@ -757,6 +761,8 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/COMMIT.html">COMMIT</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/COPY.html">COPY</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-AGGREGATE.html">CREATE
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-CAST.html">CREATE 
CAST</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-CONVERSION.html">CREATE
 CONVERSION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-DATABASE.html">CREATE
 DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-EXTERNAL-TABLE.html">CREATE
 EXTERNAL TABLE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-FUNCTION.html">CREATE
 FUNCTION</a></li>
@@ -777,6 +783,8 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DEALLOCATE.html">DEALLOCATE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DECLARE.html">DECLARE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-AGGREGATE.html">DROP
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-CAST.html">DROP 
CAST</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-CONVERSION.html">DROP
 CONVERSION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-DATABASE.html">DROP 
DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-EXTERNAL-TABLE.html">DROP
 EXTERNAL TABLE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-FILESPACE.html">DROP
 FILESPACE</a></li>

http://git-wip-us.apache.org/repos/asf/incubator-hawq-site/blob/cce3ea48/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_pltemplate.html
----------------------------------------------------------------------
diff --git 
a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_pltemplate.html 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_pltemplate.html
index f875b37..8d99e52 100644
--- a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_pltemplate.html
+++ b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_pltemplate.html
@@ -129,11 +129,13 @@
           <li>
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/setuphawqopenv.html">Introducing 
the HAWQ Operating Environment</a>
           </li>
-          <li>
+          <li class="has_submenu">
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-admin.html">Managing HAWQ 
Using Ambari</a>
-          </li>
-          <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-rest-api.html">Using the 
Ambari REST API</a>
+           <ul>
+            <li>
+              <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-rest-api.html">Using the 
Ambari REST API</a>
+            </li>
+           </ul>
           </li>
           <li>
             <a 
href="/docs/userguide/2.1.0.0-incubating/admin/startstop.html">Starting and 
Stopping HAWQ</a>
@@ -413,6 +415,7 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HivePXF.html">Accessing Hive 
Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HBasePXF.html">Accessing HBase 
Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/JsonPXF.html">Accessing JSON 
Data</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HDFSWritablePXF.html">Writing Data 
to HDFS</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/ReadWritePXF.html">Using Profiles 
to Read and Write Data</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/PXFExternalTableandAPIReference.html">PXF
 External Tables and API</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/TroubleshootingPXF.html">Troubleshooting
 PXF</a></li>
@@ -740,6 +743,7 @@
             <ul>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ABORT.html">ABORT</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-AGGREGATE.html">ALTER
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-CONVERSION.html">ALTER
 CONVERSION</a></li>  
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-DATABASE.html">ALTER
 DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-FUNCTION.html">ALTER
 FUNCTION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-OPERATOR.html">ALTER
 OPERATOR</a></li>
@@ -757,6 +761,8 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/COMMIT.html">COMMIT</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/COPY.html">COPY</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-AGGREGATE.html">CREATE
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-CAST.html">CREATE 
CAST</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-CONVERSION.html">CREATE
 CONVERSION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-DATABASE.html">CREATE
 DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-EXTERNAL-TABLE.html">CREATE
 EXTERNAL TABLE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-FUNCTION.html">CREATE
 FUNCTION</a></li>
@@ -777,6 +783,8 @@
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DEALLOCATE.html">DEALLOCATE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DECLARE.html">DECLARE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-AGGREGATE.html">DROP
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-CAST.html">DROP 
CAST</a></li>
+              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-CONVERSION.html">DROP
 CONVERSION</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-DATABASE.html">DROP 
DATABASE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-EXTERNAL-TABLE.html">DROP
 EXTERNAL TABLE</a></li>
               <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-FILESPACE.html">DROP
 FILESPACE</a></li>


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