http://git-wip-us.apache.org/repos/asf/incubator-hawq-site/blob/cce3ea48/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_proc.html
----------------------------------------------------------------------
diff --git a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_proc.html 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_proc.html
index a4d76db..50de7c1 100644
--- a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_proc.html
+++ b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_proc.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_resqueue.html
----------------------------------------------------------------------
diff --git 
a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_resqueue.html 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_resqueue.html
index 410bbb7..24c24ea 100644
--- a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_resqueue.html
+++ b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_resqueue.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_resqueue_status.html
----------------------------------------------------------------------
diff --git 
a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_resqueue_status.html 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_resqueue_status.html
index 29fd7ee..0789f55 100644
--- 
a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_resqueue_status.html
+++ 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_resqueue_status.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_rewrite.html
----------------------------------------------------------------------
diff --git 
a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_rewrite.html 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_rewrite.html
index 67739ae..1a59229 100644
--- a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_rewrite.html
+++ b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_rewrite.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_roles.html
----------------------------------------------------------------------
diff --git a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_roles.html 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_roles.html
index e31f617..7b23f9e 100644
--- a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_roles.html
+++ b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_roles.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_shdepend.html
----------------------------------------------------------------------
diff --git 
a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_shdepend.html 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_shdepend.html
index 5911eba..1e14b2b 100644
--- a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_shdepend.html
+++ b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_shdepend.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_shdescription.html
----------------------------------------------------------------------
diff --git 
a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_shdescription.html 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_shdescription.html
index e509998..373f669 100644
--- a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_shdescription.html
+++ b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_shdescription.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_stat_activity.html
----------------------------------------------------------------------
diff --git 
a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_stat_activity.html 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_stat_activity.html
index 3579d9a..0b20687 100644
--- a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_stat_activity.html
+++ b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_stat_activity.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_stat_last_operation.html
----------------------------------------------------------------------
diff --git 
a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_stat_last_operation.html
 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_stat_last_operation.html
index 0fb15ae..6145a6a 100644
--- 
a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_stat_last_operation.html
+++ 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_stat_last_operation.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_stat_last_shoperation.html
----------------------------------------------------------------------
diff --git 
a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_stat_last_shoperation.html
 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_stat_last_shoperation.html
index 16eaa6b..4dfba82 100644
--- 
a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_stat_last_shoperation.html
+++ 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_stat_last_shoperation.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_stat_operations.html
----------------------------------------------------------------------
diff --git 
a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_stat_operations.html 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_stat_operations.html
index 31c8e38..bb9f5d3 100644
--- 
a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_stat_operations.html
+++ 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_stat_operations.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_stat_partition_operations.html
----------------------------------------------------------------------
diff --git 
a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_stat_partition_operations.html
 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_stat_partition_operations.html
index 78d6935..c4f6636 100644
--- 
a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_stat_partition_operations.html
+++ 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_stat_partition_operations.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_statistic.html
----------------------------------------------------------------------
diff --git 
a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_statistic.html 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_statistic.html
index abc7698..199c4cf 100644
--- a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_statistic.html
+++ b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_statistic.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_stats.html
----------------------------------------------------------------------
diff --git a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_stats.html 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_stats.html
index 3237d25..e91509b 100644
--- a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_stats.html
+++ b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_stats.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_tablespace.html
----------------------------------------------------------------------
diff --git 
a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_tablespace.html 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_tablespace.html
index 9a97be3..25d2af0 100644
--- a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_tablespace.html
+++ b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_tablespace.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_trigger.html
----------------------------------------------------------------------
diff --git 
a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_trigger.html 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_trigger.html
index ce572b2..f3a27ce 100644
--- a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_trigger.html
+++ b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_trigger.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_type.html
----------------------------------------------------------------------
diff --git a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_type.html 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_type.html
index 66e80b0..424cf70 100644
--- a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_type.html
+++ b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_type.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_type_encoding.html
----------------------------------------------------------------------
diff --git 
a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_type_encoding.html 
b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_type_encoding.html
index d3bbbaf..d96767e 100644
--- a/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_type_encoding.html
+++ b/docs/userguide/2.1.0.0-incubating/reference/catalog/pg_type_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>


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