http://git-wip-us.apache.org/repos/asf/incubator-hawq-docs/blob/6669eef3/book/master_middleman/source/subnavs/apache-hawq-nav.erb
----------------------------------------------------------------------
diff --git a/book/master_middleman/source/subnavs/apache-hawq-nav.erb 
b/book/master_middleman/source/subnavs/apache-hawq-nav.erb
index 248eb13..1719245 100644
--- a/book/master_middleman/source/subnavs/apache-hawq-nav.erb
+++ b/book/master_middleman/source/subnavs/apache-hawq-nav.erb
@@ -5,7 +5,7 @@
       <li>
         Apache HAWQ (incubating)
       </li>
-      <li><a 
href="/docs/userguide/2.1.0.0-incubating/requirements/system-requirements.html">System
 Requirements</a>
+      <li><a 
href="/docs/userguide/2.2.0.0-incubating/requirements/system-requirements.html">System
 Requirements</a>
       </li>
 <!--      <li class="has_submenu">
         <span>
@@ -13,16 +13,16 @@
         </span>
         <ul>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/install/select-hosts.html">Selecting 
HAWQ Host Machines</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/install/select-hosts.html">Selecting 
HAWQ Host Machines</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/install/install-ambari.html">Installing
 HAWQ Using Ambari</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/install/install-ambari.html">Installing
 HAWQ Using Ambari</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/install/install-cli.html">Installing 
HAWQ from the Command Line (Optional)</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/install/install-cli.html">Installing 
HAWQ from the Command Line (Optional)</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/install/aws-config.html">Amazon EC2 
Configuration</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/install/aws-config.html">Amazon EC2 
Configuration</a>
           </li>
           <li>
             <a href="/hdb/install/install_package_extensions.html">Installing 
Procedural Languages and Package Extensions for HAWQ</a>
@@ -43,28 +43,28 @@
         </span>
         <ul>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/overview/HAWQOverview.html">What is 
HAWQ?</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/overview/HAWQOverview.html">What is 
HAWQ?</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/overview/HAWQArchitecture.html">HAWQ 
Architecture</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/overview/HAWQArchitecture.html">HAWQ 
Architecture</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/overview/TableDistributionStorage.html">Table
 Distribution and Storage</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/overview/TableDistributionStorage.html">Table
 Distribution and Storage</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/overview/ElasticSegments.html">Elastic 
Query Execution Runtime</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/overview/ElasticSegments.html">Elastic 
Query Execution Runtime</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/overview/ResourceManagement.html">Resource
 Management</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/overview/ResourceManagement.html">Resource
 Management</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/overview/HDFSCatalogCache.html">HDFS 
Catalog Cache</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/overview/HDFSCatalogCache.html">HDFS 
Catalog Cache</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/overview/ManagementTools.html">Management
 Tools</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/overview/ManagementTools.html">Management
 Tools</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/overview/RedundancyFailover.html">High 
Availability, Redundancy and Fault Tolerance</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/overview/RedundancyFailover.html">High 
Availability, Redundancy and Fault Tolerance</a>
           </li>
         </ul>
       </li>
@@ -74,54 +74,54 @@
         </span>
         <ul>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/admin/RunningHAWQ.html">Overview</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/admin/RunningHAWQ.html">Overview</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/admin/setuphawqopenv.html">Introducing 
the HAWQ Operating Environment</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/admin/setuphawqopenv.html">Introducing 
the HAWQ Operating Environment</a>
           </li>
           <li class="has_submenu">
-            <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-admin.html">Managing HAWQ 
Using Ambari</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/admin/ambari-admin.html">Managing HAWQ 
Using Ambari</a>
            <ul>
             <li>
-              <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ambari-rest-api.html">Using the 
Ambari REST API</a>
+              <a 
href="/docs/userguide/2.2.0.0-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>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/admin/startstop.html">Starting and 
Stopping HAWQ</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ClusterExpansion.html">Expanding 
a Cluster</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/admin/ClusterExpansion.html">Expanding 
a Cluster</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/admin/ClusterShrink.html">Removing a 
Node</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/admin/ClusterShrink.html">Removing a 
Node</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/admin/BackingUpandRestoringHAWQDatabases.html">Backing
 Up and Restoring HAWQ</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/admin/BackingUpandRestoringHAWQDatabases.html">Backing
 Up and Restoring HAWQ</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/admin/HighAvailability.html">High 
Availability in HAWQ</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/admin/HighAvailability.html">High 
Availability in HAWQ</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/admin/MasterMirroring.html">Master 
Mirroring</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/admin/MasterMirroring.html">Master 
Mirroring</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/admin/HAWQFilespacesandHighAvailabilityEnabledHDFS.html">HAWQ
 Filespaces and High Availability Enabled HDFS</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/admin/HAWQFilespacesandHighAvailabilityEnabledHDFS.html">HAWQ
 Filespaces and High Availability Enabled HDFS</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/admin/FaultTolerance.html">Understanding
 the Fault Tolerance Service</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/admin/FaultTolerance.html">Understanding
 the Fault Tolerance Service</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/admin/RecommendedMonitoringTasks.html">Recommended
 Monitoring and Maintenance Tasks</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/admin/RecommendedMonitoringTasks.html">Recommended
 Monitoring and Maintenance Tasks</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/admin/maintain.html">Routine System 
Maintenance Tasks</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/admin/maintain.html">Routine System 
Maintenance Tasks</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/admin/monitor.html">Monitoring a HAWQ 
System</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/admin/monitor.html">Monitoring a HAWQ 
System</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/admin/logfiles.html">HAWQ 
Administrative Log Files</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/admin/logfiles.html">HAWQ 
Administrative Log Files</a>
           </li>
         </ul>
       </li>
@@ -131,22 +131,22 @@
         </span>
         <ul>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/resourcemgmt/HAWQResourceManagement.html">How
 HAWQ Manages Resources</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/resourcemgmt/HAWQResourceManagement.html">How
 HAWQ Manages Resources</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/resourcemgmt/best-practices.html">Best 
Practices for Configuring Resource Management</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/resourcemgmt/best-practices.html">Best 
Practices for Configuring Resource Management</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/resourcemgmt/ConfigureResourceManagement.html">Configuring
 Resource Management</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/resourcemgmt/ConfigureResourceManagement.html">Configuring
 Resource Management</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/resourcemgmt/YARNIntegration.html">Integrating
 YARN with HAWQ</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/resourcemgmt/YARNIntegration.html">Integrating
 YARN with HAWQ</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/resourcemgmt/ResourceQueues.html">Working
 with Hierarchical Resource Queues</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/resourcemgmt/ResourceQueues.html">Working
 with Hierarchical Resource Queues</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/resourcemgmt/ResourceManagerStatus.html">Analyzing
 Resource Manager Status</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/resourcemgmt/ResourceManagerStatus.html">Analyzing
 Resource Manager Status</a>
           </li>
         </ul>
       </li>
@@ -156,37 +156,37 @@
         </span>
         <ul>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/clientaccess/client_auth.html">Configuring
 Client Authentication</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/clientaccess/client_auth.html">Configuring
 Client Authentication</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/clientaccess/ldap.html">Using LDAP 
Authentication with TLS/SSL</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/clientaccess/ldap.html">Using LDAP 
Authentication with TLS/SSL</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/clientaccess/kerberos.html">Using 
Kerberos Authentication</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/clientaccess/kerberos.html">Using 
Kerberos Authentication</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/clientaccess/disable-kerberos.html">Diabling
 Kerberos Security</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/clientaccess/disable-kerberos.html">Diabling
 Kerberos Security</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/clientaccess/roles_privs.html">Managing
 Roles and Privileges</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/clientaccess/roles_privs.html">Managing
 Roles and Privileges</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/clientaccess/g-establishing-a-database-session.html">Establishing
 a Database Session</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/clientaccess/g-establishing-a-database-session.html">Establishing
 a Database Session</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/clientaccess/g-supported-client-applications.html">Supported
 Client Applications</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/clientaccess/g-supported-client-applications.html">Supported
 Client Applications</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/clientaccess/g-hawq-database-client-applications.html">HAWQ
 Client Applications</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/clientaccess/g-hawq-database-client-applications.html">HAWQ
 Client Applications</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/clientaccess/g-connecting-with-psql.html">Connecting
 with psql</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/clientaccess/g-connecting-with-psql.html">Connecting
 with psql</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/clientaccess/g-database-application-interfaces.html">HAWQ
 Database Drivers and APIs</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/clientaccess/g-database-application-interfaces.html">HAWQ
 Database Drivers and APIs</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/clientaccess/g-troubleshooting-connection-problems.html">Troubleshooting
 Connection Problems</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/clientaccess/g-troubleshooting-connection-problems.html">Troubleshooting
 Connection Problems</a>
           </li>
         </ul>
       </li>
@@ -196,28 +196,28 @@
         </span>
         <ul>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/ddl/ddl.html">Overview</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/ddl/ddl.html">Overview</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/ddl/ddl-database.html">Creating and 
Managing Databases</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/ddl/ddl-database.html">Creating and 
Managing Databases</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/ddl/ddl-tablespace.html">Creating and 
Managing Tablespaces</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/ddl/ddl-tablespace.html">Creating and 
Managing Tablespaces</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/ddl/ddl-schema.html">Creating and 
Managing Schemas</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/ddl/ddl-schema.html">Creating and 
Managing Schemas</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/ddl/ddl-table.html">Creating and 
Managing Tables</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/ddl/ddl-table.html">Creating and 
Managing Tables</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/ddl/ddl-storage.html">Choosing the 
Table Storage Model</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/ddl/ddl-storage.html">Choosing the 
Table Storage Model</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/ddl/ddl-partition.html">Partitioning 
Large Tables</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/ddl/ddl-partition.html">Partitioning 
Large Tables</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/ddl/ddl-view.html">Creating and 
Managing Views</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/ddl/ddl-view.html">Creating and 
Managing Views</a>
           </li>
         </ul>
       </li>
@@ -227,681 +227,681 @@
         </span>
         <ul>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/plext/UsingProceduralLanguages.html">Using
 Languages in HAWQ</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/plext/UsingProceduralLanguages.html">Using
 Languages in HAWQ</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/plext/builtin_langs.html">Using HAWQ 
Built-In Languages</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/plext/builtin_langs.html">Using HAWQ 
Built-In Languages</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/plext/using_pljava.html">Using 
PL/Java</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/plext/using_pljava.html">Using 
PL/Java</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/plext/using_plpgsql.html">Using 
PL/pgSQL</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/plext/using_plpgsql.html">Using 
PL/pgSQL</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/plext/using_plpython.html">Using 
PL/Python</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/plext/using_plpython.html">Using 
PL/Python</a>
           </li>
           <li>
-            <a 
href="/docs/userguide/2.1.0.0-incubating/plext/using_plr.html">Using PL/R</a>
+            <a 
href="/docs/userguide/2.2.0.0-incubating/plext/using_plr.html">Using PL/R</a>
           </li>
         </ul>
       </li>
-      <li class="has_submenu"><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/dml.html">Managing Data with 
HAWQ</a>
+      <li class="has_submenu"><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/dml.html">Managing Data with 
HAWQ</a>
         <ul>
-          <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/BasicDataOperations.html">Basic
 Data Operations</a></li>
-          <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/about_statistics.html">About 
Database Statistics</a></li>
-          <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/ConcurrencyControl.html">Concurrency
 Control</a></li>
-          <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/Transactions.html">Working 
with Transactions</a></li>
-          <li class="has_submenu"><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-loading-and-unloading-data.html">Loading
 and Unloading Data</a>
+          <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/BasicDataOperations.html">Basic
 Data Operations</a></li>
+          <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/about_statistics.html">About 
Database Statistics</a></li>
+          <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/ConcurrencyControl.html">Concurrency
 Control</a></li>
+          <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/Transactions.html">Working 
with Transactions</a></li>
+          <li class="has_submenu"><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-loading-and-unloading-data.html">Loading
 and Unloading Data</a>
             <ul>
-              <li class="has_submenu"><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-working-with-file-based-ext-tables.html">Working
 with File-Based External Tables</a>
+              <li class="has_submenu"><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-working-with-file-based-ext-tables.html">Working
 with File-Based External Tables</a>
                 <ul>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-external-tables.html">Accessing
 File-Based External Tables</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-gpfdist-protocol.html">gpfdist
 Protocol</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-gpfdists-protocol.html">gpfdists
 Protocol</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-handling-errors-ext-table-data.html">Handling
 Errors in External Table Data</a></li>
+                  <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-external-tables.html">Accessing
 File-Based External Tables</a></li>
+                  <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-gpfdist-protocol.html">gpfdist
 Protocol</a></li>
+                  <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-gpfdists-protocol.html">gpfdists
 Protocol</a></li>
+                  <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-handling-errors-ext-table-data.html">Handling
 Errors in External Table Data</a></li>
                 </ul>
               </li>
-              <li class="has_submenu"><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-using-the-hawq-file-server--gpfdist-.html">Using
 the HAWQ File Server (gpfdist)</a>
+              <li class="has_submenu"><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-using-the-hawq-file-server--gpfdist-.html">Using
 the HAWQ File Server (gpfdist)</a>
                 <ul>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-about-gpfdist-setup-and-performance.html">About
 gpfdist Setup and Performance</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-controlling-segment-parallelism.html">Controlling
 Segment Parallelism</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-installing-gpfdist.html">Installing
 gpfdist</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-starting-and-stopping-gpfdist.html">Starting
 and Stopping gpfdist</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-troubleshooting-gpfdist.html">Troubleshooting
 gpfdist</a></li>
+                  <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-about-gpfdist-setup-and-performance.html">About
 gpfdist Setup and Performance</a></li>
+                  <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-controlling-segment-parallelism.html">Controlling
 Segment Parallelism</a></li>
+                  <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-installing-gpfdist.html">Installing
 gpfdist</a></li>
+                  <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-starting-and-stopping-gpfdist.html">Starting
 and Stopping gpfdist</a></li>
+                  <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-troubleshooting-gpfdist.html">Troubleshooting
 gpfdist</a></li>
                 </ul>
               </li>
-              <li class="has_submenu"><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-creating-and-using-web-external-tables.html">Creating
 and Using Web External Tables</a>
+              <li class="has_submenu"><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-creating-and-using-web-external-tables.html">Creating
 and Using Web External Tables</a>
                 <ul>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-command-based-web-external-tables.html">Command-based
 Web External Tables</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-url-based-web-external-tables.html">URL-based
 Web External Tables</a></li>
+                  <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-command-based-web-external-tables.html">Command-based
 Web External Tables</a></li>
+                  <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-url-based-web-external-tables.html">URL-based
 Web External Tables</a></li>
                 </ul>
               </li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-loading-data-using-an-external-table.html">Loading
 Data Using an External Table</a></li>
-              <li class="has_submenu"><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-loading-and-writing-non-hdfs-custom-data.html">Loading
 and Writing Non-HDFS Custom Data</a>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-loading-data-using-an-external-table.html">Loading
 Data Using an External Table</a></li>
+              <li class="has_submenu"><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-loading-and-writing-non-hdfs-custom-data.html">Loading
 and Writing Non-HDFS Custom Data</a>
                 <ul>
-                  <li class="has_submenu"><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-using-a-custom-format.html">Using
 a Custom Format</a>
+                  <li class="has_submenu"><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-using-a-custom-format.html">Using
 a Custom Format</a>
                     <ul>
-                      <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-importing-and-exporting-fixed-width-data.html">Importing
 and Exporting Fixed Width Data</a></li>
-                      <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-examples-read-fixed-width-data.html">Examples
 - Read Fixed-Width Data</a></li>
+                      <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-importing-and-exporting-fixed-width-data.html">Importing
 and Exporting Fixed Width Data</a></li>
+                      <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-examples-read-fixed-width-data.html">Examples
 - Read Fixed-Width Data</a></li>
                     </ul>
                   </li>
                 </ul>
               </li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/creating-external-tables-examples.html">Creating
 External Tables - Examples</a>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/creating-external-tables-examples.html">Creating
 External Tables - Examples</a>
               </li>
-              <li class="has_submenu"><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-handling-load-errors.html">Handling
 Load Errors</a>
+              <li class="has_submenu"><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-handling-load-errors.html">Handling
 Load Errors</a>
                 <ul>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-define-an-external-table-with-single-row-error-isolation.html">Define
 an External Table with Single Row Error Isolation</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-create-an-error-table-and-declare-a-reject-limit.html">Capture
 Row Formatting Errors and Declare a Reject Limit </a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-identifying-invalid-csv-files-in-error-table-data.html">Identifying
 Invalid CSV Files in Error Table Data</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-moving-data-between-tables.html">Moving
 Data between Tables</a></li>
+                  <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-define-an-external-table-with-single-row-error-isolation.html">Define
 an External Table with Single Row Error Isolation</a></li>
+                  <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-create-an-error-table-and-declare-a-reject-limit.html">Capture
 Row Formatting Errors and Declare a Reject Limit </a></li>
+                  <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-identifying-invalid-csv-files-in-error-table-data.html">Identifying
 Invalid CSV Files in Error Table Data</a></li>
+                  <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-moving-data-between-tables.html">Moving
 Data between Tables</a></li>
                 </ul>
               </li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-register_files.html">Registering
 Files into HAWQ Internal Tables</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-loading-data-with-hawqload.html">Loading
 Data with hawq load</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-loading-data-with-copy.html">Loading
 Data with COPY</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-running-copy-in-single-row-error-isolation-mode.html">Running
 COPY in Single Row Error Isolation Mode</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-optimizing-data-load-and-query-performance.html">Optimizing
 Data Load and Query Performance</a></li>
-              <li class="has_submenu"><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-unloading-data-from-hawq-database.html">Unloading
 Data from HAWQ</a>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-register_files.html">Registering
 Files into HAWQ Internal Tables</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-loading-data-with-hawqload.html">Loading
 Data with hawq load</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-loading-data-with-copy.html">Loading
 Data with COPY</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-running-copy-in-single-row-error-isolation-mode.html">Running
 COPY in Single Row Error Isolation Mode</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-optimizing-data-load-and-query-performance.html">Optimizing
 Data Load and Query Performance</a></li>
+              <li class="has_submenu"><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-unloading-data-from-hawq-database.html">Unloading
 Data from HAWQ</a>
                 <ul>
-                  <li class="has_submenu"><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-defining-a-file-based-writable-external-table.html">Defining
 a File-Based Writable External Table</a>
+                  <li class="has_submenu"><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-defining-a-file-based-writable-external-table.html">Defining
 a File-Based Writable External Table</a>
                     <ul>
-                      <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-example-hawq-file-server-gpfdist.html">Example
 - HAWQ file server (gpfdist)</a></li>
+                      <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-example-hawq-file-server-gpfdist.html">Example
 - HAWQ file server (gpfdist)</a></li>
                     </ul>
                   </li>
-                  <li class="has_submenu"><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-defining-a-command-based-writable-external-web-table.html">Defining
 a Command-Based Writable External Web Table</a>
+                  <li class="has_submenu"><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-defining-a-command-based-writable-external-web-table.html">Defining
 a Command-Based Writable External Web Table</a>
                     <ul>
-                      <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-disabling-execute-for-web-or-writable-external-tables.html">Disabling
 EXECUTE for Web or Writable External Tables</a></li>
+                      <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-disabling-execute-for-web-or-writable-external-tables.html">Disabling
 EXECUTE for Web or Writable External Tables</a></li>
                     </ul>
                   </li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-unloading-data-using-a-writable-external-table.html">Unloading
 Data Using a Writable External Table</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-unloading-data-using-copy.html">Unloading
 Data Using COPY</a></li>
+                  <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-unloading-data-using-a-writable-external-table.html">Unloading
 Data Using a Writable External Table</a></li>
+                  <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-unloading-data-using-copy.html">Unloading
 Data Using COPY</a></li>
                 </ul>
               </li>
-              <li class="has_submenu"><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-transforming-xml-data.html">Transforming
 XML Data</a>
+              <li class="has_submenu"><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-transforming-xml-data.html">Transforming
 XML Data</a>
                 <ul>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-determine-the-transformation-schema.html">Determine
 the Transformation Schema</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-write-a-transform.html">Write
 a Transform</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-write-the-gpfdist-configuration.html">Write
 the gpfdist Configuration</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-load-the-data.html">Load
 the Data</a></li>
-                  <li class="has_submenu"><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-transfer-and-store-the-data.html">Transfer
 and Store the Data</a>
+                  <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-determine-the-transformation-schema.html">Determine
 the Transformation Schema</a></li>
+                  <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-write-a-transform.html">Write
 a Transform</a></li>
+                  <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-write-the-gpfdist-configuration.html">Write
 the gpfdist Configuration</a></li>
+                  <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-load-the-data.html">Load
 the Data</a></li>
+                  <li class="has_submenu"><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-transfer-and-store-the-data.html">Transfer
 and Store the Data</a>
                     <ul>
-                      <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-transforming-with-gpload.html">Transforming
 with GPLOAD</a></li>
-                      <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-transforming-with-insert-into-select-from.html">Transforming
 with INSERT INTO SELECT FROM</a></li>
-                      <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-configuration-file-format.html">Configuration
 File Format</a></li>
+                      <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-transforming-with-gpload.html">Transforming
 with GPLOAD</a></li>
+                      <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-transforming-with-insert-into-select-from.html">Transforming
 with INSERT INTO SELECT FROM</a></li>
+                      <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-configuration-file-format.html">Configuration
 File Format</a></li>
                     </ul>
                   </li>
-                  <li class="has_submenu"><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-xml-transformation-examples.html">XML
 Transformation Examples</a>
+                  <li class="has_submenu"><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-xml-transformation-examples.html">XML
 Transformation Examples</a>
                     <ul>
-                      <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-example-1-dblp-database-publications-in-demo-directory.html">Command-based
 Web External Tables</a></li>
-                      <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-example-irs-mef-xml-files-in-demo-directory.html">Example
 using IRS MeF XML Files (In demo Directory)</a></li>
-                      <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-example-witsml-files-in-demo-directory.html">Example
 using WITSML™ Files (In demo Directory)</a></li>
+                      <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-example-1-dblp-database-publications-in-demo-directory.html">Command-based
 Web External Tables</a></li>
+                      <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-example-irs-mef-xml-files-in-demo-directory.html">Example
 using IRS MeF XML Files (In demo Directory)</a></li>
+                      <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-example-witsml-files-in-demo-directory.html">Example
 using WITSML™ Files (In demo Directory)</a></li>
                     </ul>
                   </li>
                 </ul>
               </li>
-              <li class="has_submenu"><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-formatting-data-files.html">Formatting
 Data Files</a>
+              <li class="has_submenu"><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-formatting-data-files.html">Formatting
 Data Files</a>
                 <ul>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-formatting-rows.html">Formatting
 Rows</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-formatting-columns.html">Formatting
 Columns</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-representing-null-values.html">Representing
 NULL Values</a></li>
-                  <li class="has_submenu"><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-escaping.html">Escaping</a>
+                  <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-formatting-rows.html">Formatting
 Rows</a></li>
+                  <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-formatting-columns.html">Formatting
 Columns</a></li>
+                  <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-representing-null-values.html">Representing
 NULL Values</a></li>
+                  <li class="has_submenu"><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-escaping.html">Escaping</a>
                     <ul>
-                      <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-escaping-in-text-formatted-files.html">Escaping
 in Text Formatted Files</a></li>
-                      <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-escaping-in-csv-formatted-files.html">Escaping
 in CSV Formatted Files</a></li>
+                      <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-escaping-in-text-formatted-files.html">Escaping
 in Text Formatted Files</a></li>
+                      <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-escaping-in-csv-formatted-files.html">Escaping
 in CSV Formatted Files</a></li>
                     </ul>
                   </li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/load/g-character-encoding.html">Character
 Encoding</a></li>
+                  <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/load/g-character-encoding.html">Character
 Encoding</a></li>
                 </ul>
               </li>
             </ul>
           </li>
-          <li><a 
href="/docs/userguide/2.1.0.0-incubating/datamgmt/HAWQInputFormatforMapReduce.html">HAWQ
 InputFormat for MapReduce</a></li>
+          <li><a 
href="/docs/userguide/2.2.0.0-incubating/datamgmt/HAWQInputFormatforMapReduce.html">HAWQ
 InputFormat for MapReduce</a></li>
         </ul>
       </li>
-      <li class="has_submenu"><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HawqExtensionFrameworkPXF.html">Using
 PXF with Unmanaged Data</a>
+      <li class="has_submenu"><a 
href="/docs/userguide/2.2.0.0-incubating/pxf/HawqExtensionFrameworkPXF.html">Using
 PXF with Unmanaged Data</a>
             <ul>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/InstallPXFPlugins.html">Installing 
PXF Plugins</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/ConfigurePXF.html">Configuring 
PXF</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/pxf/HDFSFileDataPXF.html">Accessing 
HDFS File Data</a></li>
-              <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>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/pxf/InstallPXFPlugins.html">Installing 
PXF Plugins</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/pxf/ConfigurePXF.html">Configuring 
PXF</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/pxf/HDFSFileDataPXF.html">Accessing 
HDFS File Data</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/pxf/HivePXF.html">Accessing Hive 
Data</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/pxf/HBasePXF.html">Accessing HBase 
Data</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/pxf/JsonPXF.html">Accessing JSON 
Data</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/pxf/HDFSWritablePXF.html">Writing Data 
to HDFS</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/pxf/ReadWritePXF.html">Using Profiles 
to Read and Write Data</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/pxf/PXFExternalTableandAPIReference.html">PXF
 External Tables and API</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/pxf/TroubleshootingPXF.html">Troubleshooting
 PXF</a></li>
             </ul>
       </li>
-      <li class="has_submenu"><a 
href="/docs/userguide/2.1.0.0-incubating/query/query.html">Querying Data</a>
+      <li class="has_submenu"><a 
href="/docs/userguide/2.2.0.0-incubating/query/query.html">Querying Data</a>
         <ul>
-          <li><a 
href="/docs/userguide/2.1.0.0-incubating/query/HAWQQueryProcessing.html">About 
HAWQ Query Processing</a></li>
-          <li class="has_submenu"><a 
href="/docs/userguide/2.1.0.0-incubating/query/gporca/query-gporca-optimizer.html">About
 GPORCA</a>
+          <li><a 
href="/docs/userguide/2.2.0.0-incubating/query/HAWQQueryProcessing.html">About 
HAWQ Query Processing</a></li>
+          <li class="has_submenu"><a 
href="/docs/userguide/2.2.0.0-incubating/query/gporca/query-gporca-optimizer.html">About
 GPORCA</a>
             <ul>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/query/gporca/query-gporca-overview.html">Overview
 of GPORCA</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/query/gporca/query-gporca-features.html">GPORCA
 Features and Enhancements</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/query/gporca/query-gporca-enable.html">Enabling
 GPORCA</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/query/gporca/query-gporca-notes.html">Considerations
 when Using GPORCA</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/query/gporca/query-gporca-fallback.html">Determining
 The Query Optimizer In Use</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/query/gporca/query-gporca-changed.html">Changed
 Behavior with GPORCA</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/query/gporca/query-gporca-limitations.html">GPORCA
 Limitations</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/query/gporca/query-gporca-overview.html">Overview
 of GPORCA</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/query/gporca/query-gporca-features.html">GPORCA
 Features and Enhancements</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/query/gporca/query-gporca-enable.html">Enabling
 GPORCA</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/query/gporca/query-gporca-notes.html">Considerations
 when Using GPORCA</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/query/gporca/query-gporca-fallback.html">Determining
 The Query Optimizer In Use</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/query/gporca/query-gporca-changed.html">Changed
 Behavior with GPORCA</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/query/gporca/query-gporca-limitations.html">GPORCA
 Limitations</a></li>
             </ul>
           </li>
-          <li><a 
href="/docs/userguide/2.1.0.0-incubating/query/defining-queries.html">Defining 
Queries</a></li>
-          <li><a 
href="/docs/userguide/2.1.0.0-incubating/query/functions-operators.html">Using 
Functions and Operators</a></li>
-          <li><a 
href="/docs/userguide/2.1.0.0-incubating/query/query-performance.html">Query 
Performance</a></li>
-          <li><a 
href="/docs/userguide/2.1.0.0-incubating/query/query-profiling.html">Query 
Profiling</a></li>
+          <li><a 
href="/docs/userguide/2.2.0.0-incubating/query/defining-queries.html">Defining 
Queries</a></li>
+          <li><a 
href="/docs/userguide/2.2.0.0-incubating/query/functions-operators.html">Using 
Functions and Operators</a></li>
+          <li><a 
href="/docs/userguide/2.2.0.0-incubating/query/query-performance.html">Query 
Performance</a></li>
+          <li><a 
href="/docs/userguide/2.2.0.0-incubating/query/query-profiling.html">Query 
Profiling</a></li>
         </ul>
       </li>
-      <li class="has_submenu"><a 
href="/docs/userguide/2.1.0.0-incubating/bestpractices/HAWQBestPracticesOverview.html">Best
 Practices</a>
+      <li class="has_submenu"><a 
href="/docs/userguide/2.2.0.0-incubating/bestpractices/HAWQBestPracticesOverview.html">Best
 Practices</a>
         <ul>
-          <li><a 
href="/docs/userguide/2.1.0.0-incubating/bestpractices/config_hawq_bestpractices.html">Configuring
 HAWQ</a></li>
-          <li><a 
href="/docs/userguide/2.1.0.0-incubating/bestpractices/operating_hawq_bestpractices.html">Operating
 HAWQ</a></li>
-          <li><a 
href="/docs/userguide/2.1.0.0-incubating/bestpractices/secure_bestpractices.html">Securing
 HAWQ</a></li>
-          <li><a 
href="/docs/userguide/2.1.0.0-incubating/bestpractices/managing_resources_bestpractices.html">Managing
 Resources</a></li>
-          <li><a 
href="/docs/userguide/2.1.0.0-incubating/bestpractices/managing_data_bestpractices.html">Managing
 Data</a></li>
-          <li><a 
href="/docs/userguide/2.1.0.0-incubating/bestpractices/querying_data_bestpractices.html">Querying
 Data</a></li>
+          <li><a 
href="/docs/userguide/2.2.0.0-incubating/bestpractices/config_hawq_bestpractices.html">Configuring
 HAWQ</a></li>
+          <li><a 
href="/docs/userguide/2.2.0.0-incubating/bestpractices/operating_hawq_bestpractices.html">Operating
 HAWQ</a></li>
+          <li><a 
href="/docs/userguide/2.2.0.0-incubating/bestpractices/secure_bestpractices.html">Securing
 HAWQ</a></li>
+          <li><a 
href="/docs/userguide/2.2.0.0-incubating/bestpractices/managing_resources_bestpractices.html">Managing
 Resources</a></li>
+          <li><a 
href="/docs/userguide/2.2.0.0-incubating/bestpractices/managing_data_bestpractices.html">Managing
 Data</a></li>
+          <li><a 
href="/docs/userguide/2.2.0.0-incubating/bestpractices/querying_data_bestpractices.html">Querying
 Data</a></li>
         </ul>
       </li>
-      <li class="has_submenu"><a 
href="/docs/userguide/2.1.0.0-incubating/troubleshooting/Troubleshooting.html">Troubleshooting</a>
+      <li class="has_submenu"><a 
href="/docs/userguide/2.2.0.0-incubating/troubleshooting/Troubleshooting.html">Troubleshooting</a>
         <ul>
-          <li><a 
href="/docs/userguide/2.1.0.0-incubating/troubleshooting/Troubleshooting.html#topic_dwd_rnx_15">Query
 Performance Issues</a></li>
-          <li><a 
href="/docs/userguide/2.1.0.0-incubating/troubleshooting/Troubleshooting.html#topic_vm5_znx_15">Rejection
 of Query Resource Requests</a></li>
-          <li><a 
href="/docs/userguide/2.1.0.0-incubating/troubleshooting/Troubleshooting.html#topic_qq4_rkl_wv">Queries
 Cancelled Due to High VMEM Usage</a></li>
-          <li><a 
href="/docs/userguide/2.1.0.0-incubating/troubleshooting/Troubleshooting.html#topic_hlj_zxx_15">Segments
 Do Not Appear in gp_segment_configuration</a></li>
-          <li><a 
href="/docs/userguide/2.1.0.0-incubating/troubleshooting/Troubleshooting.html#topic_mdz_q2y_15">Handling
 Segment Resource Fragmentation</a></li>
+          <li><a 
href="/docs/userguide/2.2.0.0-incubating/troubleshooting/Troubleshooting.html#topic_dwd_rnx_15">Query
 Performance Issues</a></li>
+          <li><a 
href="/docs/userguide/2.2.0.0-incubating/troubleshooting/Troubleshooting.html#topic_vm5_znx_15">Rejection
 of Query Resource Requests</a></li>
+          <li><a 
href="/docs/userguide/2.2.0.0-incubating/troubleshooting/Troubleshooting.html#topic_qq4_rkl_wv">Queries
 Cancelled Due to High VMEM Usage</a></li>
+          <li><a 
href="/docs/userguide/2.2.0.0-incubating/troubleshooting/Troubleshooting.html#topic_hlj_zxx_15">Segments
 Do Not Appear in gp_segment_configuration</a></li>
+          <li><a 
href="/docs/userguide/2.2.0.0-incubating/troubleshooting/Troubleshooting.html#topic_mdz_q2y_15">Handling
 Segment Resource Fragmentation</a></li>
         </ul>
       </li>
-      <li class="has_submenu"><a 
href="/docs/userguide/2.1.0.0-incubating/reference/hawq-reference.html">HAWQ 
Reference</a>
+      <li class="has_submenu"><a 
href="/docs/userguide/2.2.0.0-incubating/reference/hawq-reference.html">HAWQ 
Reference</a>
         <ul>
-          <li class="has_submenu"><a 
href="/docs/userguide/2.1.0.0-incubating/reference/SQLCommandReference.html">SQL
 Commands</a>
+          <li class="has_submenu"><a 
href="/docs/userguide/2.2.0.0-incubating/reference/SQLCommandReference.html">SQL
 Commands</a>
             <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>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-OPERATOR-CLASS.html">ALTER
 OPERATOR CLASS</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-RESOURCE-QUEUE.html">ALTER
 RESOURCE QUEUE</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-ROLE.html">ALTER 
ROLE</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-TABLE.html">ALTER 
TABLE</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-TABLESPACE.html">ALTER
 TABLESPACE</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-TYPE.html">ALTER 
TYPE</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ALTER-USER.html">ALTER 
USER</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ANALYZE.html">ANALYZE</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/BEGIN.html">BEGIN</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CHECKPOINT.html">CHECKPOINT</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CLOSE.html">CLOSE</a></li>
-              <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>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-GROUP.html">CREATE
 GROUP</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-LANGUAGE.html">CREATE
 LANGUAGE</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-OPERATOR.html">CREATE
 OPERATOR</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-OPERATOR-CLASS.html">CREATE
 OPERATOR CLASS</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-RESOURCE-QUEUE.html">CREATE
 RESOURCE QUEUE</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-ROLE.html">CREATE 
ROLE</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-SCHEMA.html">CREATE
 SCHEMA</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-SEQUENCE.html">CREATE
 SEQUENCE</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-TABLE.html">CREATE
 TABLE</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-TABLE-AS.html">CREATE
 TABLE AS</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-TABLESPACE.html">CREATE
 TABLESPACE</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-TYPE.html">CREATE 
TYPE</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-USER.html">CREATE 
USER</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/CREATE-VIEW.html">CREATE 
VIEW</a></li>
-              <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>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-FUNCTION.html">DROP 
FUNCTION</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-GROUP.html">DROP 
GROUP</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-LANGUAGE.html">DROP 
LANGUAGE</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-OPERATOR.html">DROP 
OPERATOR</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-OPERATOR-CLASS.html">DROP
 OPERATOR CLASS</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-OWNED.html">DROP 
OWNED</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-RESOURCE-QUEUE.html">DROP
 RESOURCE QUEUE</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-ROLE.html">DROP 
ROLE</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-SCHEMA.html">DROP 
SCHEMA</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-SEQUENCE.html">DROP 
SEQUENCE</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-TABLE.html">DROP 
TABLE</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-TABLESPACE.html">DROP
 TABLESPACE</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-TYPE.html">DROP 
TYPE</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-USER.html">DROP 
USER</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/DROP-VIEW.html">DROP 
VIEW</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/END.html">END</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/EXECUTE.html">EXECUTE</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/EXPLAIN.html">EXPLAIN</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/FETCH.html">FETCH</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/GRANT.html">GRANT</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/INSERT.html">INSERT</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/PREPARE.html">PREPARE</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/REASSIGN-OWNED.html">REASSIGN
 OWNED</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/RELEASE-SAVEPOINT.html">RELEASE
 SAVEPOINT</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/RESET.html">RESET</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/REVOKE.html">REVOKE</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ROLLBACK.html">ROLLBACK</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/ROLLBACK-TO-SAVEPOINT.html">ROLLBACK
 TO SAVEPOINT</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/SAVEPOINT.html">SAVEPOINT</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/SELECT.html">SELECT</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/SELECT-INTO.html">SELECT 
INTO</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/SET.html">SET</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/SET-ROLE.html">SET 
ROLE</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/SET-SESSION-AUTHORIZATION.html">SET
 SESSION AUTHORIZATION</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/SHOW.html">SHOW</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/TRUNCATE.html">TRUNCATE</a></li>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/sql/VACUUM.html">VACUUM</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/ABORT.html">ABORT</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/ALTER-AGGREGATE.html">ALTER
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/ALTER-CONVERSION.html">ALTER
 CONVERSION</a></li>  
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/ALTER-DATABASE.html">ALTER
 DATABASE</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/ALTER-FUNCTION.html">ALTER
 FUNCTION</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/ALTER-OPERATOR.html">ALTER
 OPERATOR</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/ALTER-OPERATOR-CLASS.html">ALTER
 OPERATOR CLASS</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/ALTER-RESOURCE-QUEUE.html">ALTER
 RESOURCE QUEUE</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/ALTER-ROLE.html">ALTER 
ROLE</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/ALTER-TABLE.html">ALTER 
TABLE</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/ALTER-TABLESPACE.html">ALTER
 TABLESPACE</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/ALTER-TYPE.html">ALTER 
TYPE</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/ALTER-USER.html">ALTER 
USER</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/ANALYZE.html">ANALYZE</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/BEGIN.html">BEGIN</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/CHECKPOINT.html">CHECKPOINT</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/CLOSE.html">CLOSE</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/COMMIT.html">COMMIT</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/COPY.html">COPY</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/CREATE-AGGREGATE.html">CREATE
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/CREATE-CAST.html">CREATE 
CAST</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/CREATE-CONVERSION.html">CREATE
 CONVERSION</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/CREATE-DATABASE.html">CREATE
 DATABASE</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/CREATE-EXTERNAL-TABLE.html">CREATE
 EXTERNAL TABLE</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/CREATE-FUNCTION.html">CREATE
 FUNCTION</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/CREATE-GROUP.html">CREATE
 GROUP</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/CREATE-LANGUAGE.html">CREATE
 LANGUAGE</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/CREATE-OPERATOR.html">CREATE
 OPERATOR</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/CREATE-OPERATOR-CLASS.html">CREATE
 OPERATOR CLASS</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/CREATE-RESOURCE-QUEUE.html">CREATE
 RESOURCE QUEUE</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/CREATE-ROLE.html">CREATE 
ROLE</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/CREATE-SCHEMA.html">CREATE
 SCHEMA</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/CREATE-SEQUENCE.html">CREATE
 SEQUENCE</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/CREATE-TABLE.html">CREATE
 TABLE</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/CREATE-TABLE-AS.html">CREATE
 TABLE AS</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/CREATE-TABLESPACE.html">CREATE
 TABLESPACE</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/CREATE-TYPE.html">CREATE 
TYPE</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/CREATE-USER.html">CREATE 
USER</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/CREATE-VIEW.html">CREATE 
VIEW</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/DEALLOCATE.html">DEALLOCATE</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/DECLARE.html">DECLARE</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/DROP-AGGREGATE.html">DROP
 AGGREGATE</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/DROP-CAST.html">DROP 
CAST</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/DROP-CONVERSION.html">DROP
 CONVERSION</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/DROP-DATABASE.html">DROP 
DATABASE</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/DROP-EXTERNAL-TABLE.html">DROP
 EXTERNAL TABLE</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/DROP-FILESPACE.html">DROP
 FILESPACE</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/DROP-FUNCTION.html">DROP 
FUNCTION</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/DROP-GROUP.html">DROP 
GROUP</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/DROP-LANGUAGE.html">DROP 
LANGUAGE</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/DROP-OPERATOR.html">DROP 
OPERATOR</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/DROP-OPERATOR-CLASS.html">DROP
 OPERATOR CLASS</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/DROP-OWNED.html">DROP 
OWNED</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/DROP-RESOURCE-QUEUE.html">DROP
 RESOURCE QUEUE</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/DROP-ROLE.html">DROP 
ROLE</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/DROP-SCHEMA.html">DROP 
SCHEMA</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/DROP-SEQUENCE.html">DROP 
SEQUENCE</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/DROP-TABLE.html">DROP 
TABLE</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/DROP-TABLESPACE.html">DROP
 TABLESPACE</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/DROP-TYPE.html">DROP 
TYPE</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/DROP-USER.html">DROP 
USER</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/DROP-VIEW.html">DROP 
VIEW</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/END.html">END</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/EXECUTE.html">EXECUTE</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/EXPLAIN.html">EXPLAIN</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/FETCH.html">FETCH</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/GRANT.html">GRANT</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/INSERT.html">INSERT</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/PREPARE.html">PREPARE</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/REASSIGN-OWNED.html">REASSIGN
 OWNED</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/RELEASE-SAVEPOINT.html">RELEASE
 SAVEPOINT</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/RESET.html">RESET</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/REVOKE.html">REVOKE</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/ROLLBACK.html">ROLLBACK</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/ROLLBACK-TO-SAVEPOINT.html">ROLLBACK
 TO SAVEPOINT</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/SAVEPOINT.html">SAVEPOINT</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/SELECT.html">SELECT</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/SELECT-INTO.html">SELECT 
INTO</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/SET.html">SET</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/SET-ROLE.html">SET 
ROLE</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/SET-SESSION-AUTHORIZATION.html">SET
 SESSION AUTHORIZATION</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/SHOW.html">SHOW</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/TRUNCATE.html">TRUNCATE</a></li>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/sql/VACUUM.html">VACUUM</a></li>
             </ul>
           </li>
-          <li class="has_submenu"><a 
href="/docs/userguide/2.1.0.0-incubating/reference/HAWQSiteConfig.html">Server 
Configuration Parameter Reference</a>
+          <li class="has_submenu"><a 
href="/docs/userguide/2.2.0.0-incubating/reference/HAWQSiteConfig.html">Server 
Configuration Parameter Reference</a>
             <ul>
-              <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/guc_config.html">About 
Server Configuration Parameters</a></li>
-              <li class="has_submenu"><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/guc_category-list.html">Configuration
 Parameter Categories</a>
+              <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/guc/guc_config.html">About 
Server Configuration Parameters</a></li>
+              <li class="has_submenu"><a 
href="/docs/userguide/2.2.0.0-incubating/reference/guc/guc_category-list.html">Configuration
 Parameter Categories</a>
                 <ul>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/guc_category-list.html#topic_hfd_1tl_zp">Append-Only
 Table Parameters</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/guc_category-list.html#topic39">Client
 Connection Default Parameters</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/guc_category-list.html#topic12">Connection
 and Authentication Parameters</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/guc_category-list.html#topic47">Database
 and Tablespace/Filespace Parameters</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/guc_category-list.html#topic29">Error
 Reporting and Logging Parameters</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/guc_category-list.html#topic45">External
 Table Parameters</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/guc_category-list.html#topic57">GPORCA
 Parameters</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/guc_category-list.html#topic49">HAWQ
 Array Configuration Parameters</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/guc_category-list.html#topic_pxfparam">HAWQ
 Extension Framework (PXF) Parameters</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/guc_category-list.html#topic56">HAWQ
 PL/Java Extension Parameters</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/guc_category-list.html#hawq_resource_management">HAWQ
 Resource Management Parameters</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/guc_category-list.html#topic43">Lock
 Management Parameters</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/guc_category-list.html#topic48">Past
 PostgreSQL Version Compatibility Parameters</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/guc_category-list.html#topic21">Query
 Tuning Parameters</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/guc_category-list.html#statistics_collection">Statistics
 Collection Parameters</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/guc_category-list.html#topic15">System
 Resource Consumption Parameters</a></li>
+                  <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/guc/guc_category-list.html#topic_hfd_1tl_zp">Append-Only
 Table Parameters</a></li>
+                  <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/guc/guc_category-list.html#topic39">Client
 Connection Default Parameters</a></li>
+                  <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/guc/guc_category-list.html#topic12">Connection
 and Authentication Parameters</a></li>
+                  <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/guc/guc_category-list.html#topic47">Database
 and Tablespace/Filespace Parameters</a></li>
+                  <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/guc/guc_category-list.html#topic29">Error
 Reporting and Logging Parameters</a></li>
+                  <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/guc/guc_category-list.html#topic45">External
 Table Parameters</a></li>
+                  <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/guc/guc_category-list.html#topic57">GPORCA
 Parameters</a></li>
+                  <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/guc/guc_category-list.html#topic49">HAWQ
 Array Configuration Parameters</a></li>
+                  <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/guc/guc_category-list.html#topic_pxfparam">HAWQ
 Extension Framework (PXF) Parameters</a></li>
+                  <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/guc/guc_category-list.html#topic56">HAWQ
 PL/Java Extension Parameters</a></li>
+                  <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/guc/guc_category-list.html#hawq_resource_management">HAWQ
 Resource Management Parameters</a></li>
+                  <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/guc/guc_category-list.html#topic43">Lock
 Management Parameters</a></li>
+                  <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/guc/guc_category-list.html#topic48">Past
 PostgreSQL Version Compatibility Parameters</a></li>
+                  <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/guc/guc_category-list.html#topic21">Query
 Tuning Parameters</a></li>
+                  <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/guc/guc_category-list.html#statistics_collection">Statistics
 Collection Parameters</a></li>
+                  <li><a 
href="/docs/userguide/2.2.0.0-incubating/reference/guc/guc_category-list.html#topic15">System
 Resource Consumption Parameters</a></li>
                 </ul>
               </li>
-              <li class="has_submenu"><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html">Configuration
 Parameters</a>
+              <li class="has_submenu"><a 
href="/docs/userguide/2.2.0.0-incubating/reference/guc/parameter_definitions.html">Configuration
 Parameters</a>
                 <ul>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#add_missing_from">add_missing_from</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#application_name">application_name</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#array_nulls">array_nulls</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#authentication_timeout">authentication_timeout</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#backslash_quote">backslash_quote</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#block_size">block_size</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#bonjour_name">bonjour_name</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#check_function_bodies">check_function_bodies</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#client_encoding">client_encoding</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#client_min_messages">client_min_messages</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#cpu_index_tuple_cost">cpu_index_tuple_cost</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#cpu_operator_cost">cpu_operator_cost</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#cpu_tuple_cost">cpu_tuple_cost</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#cursor_tuple_fraction">cursor_tuple_fraction</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#custom_variable_classes">custom_variable_classes</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#DateStyle">DateStyle</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#db_user_namespace">db_user_namespace</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#deadlock_timeout">deadlock_timeout</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#debug_assertions">debug_assertions</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#debug_pretty_print">debug_pretty_print</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#debug_print_parse">debug_print_parse</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#debug_print_plan">debug_print_plan</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#debug_print_prelim_plan">debug_print_prelim_plan</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#debug_print_rewritten">debug_print_rewritten</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#debug_print_slice_table">debug_print_slice_table</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#topic_fqj_4fd_kv">default_hash_table_bucket_number</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#default_statistics_target">default_statistics_target</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#default_tablespace">default_tablespace</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#default_transaction_isolation">default_transaction_isolation</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#default_transaction_read_only">default_transaction_read_only</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#dfs_url">dfs_url</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#dynamic_library_path">dynamic_library_path</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#effective_cache_size">effective_cache_size</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#enable_bitmapscan">enable_bitmapscan</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#enable_groupagg">enable_groupagg</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#enable_hashagg">enable_hashagg</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#enable_hashjoin">enable_hashjoin</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#enable_indexscan">enable_indexscan</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#enable_mergejoin">enable_mergejoin</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#enable_nestloop">enable_nestloop</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#enable_seqscan">enable_seqscan</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#enable_sort">enable_sort</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#enable_tidscan">enable_tidscan</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#escape_string_warning">escape_string_warning</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#explain_pretty_print">explain_pretty_print</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#extra_float_digits">extra_float_digits</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#from_collapse_limit">from_collapse_limit</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#gp_adjust_selectivity_for_outerjoins">gp_adjust_selectivity_for_outerjoins</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#gp_analyze_relative_error">gp_analyze_relative_error</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#gp_autostats_mode">gp_autostats_mode</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#topic_imj_zhf_gw">gp_autostats_on_change_threshhold</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#gp_backup_directIO">gp_backup_directIO</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#gp_backup_directIO_read_chunk_mb">gp_backup_directIO_read_chunk_mb</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#gp_cached_segworkers_threshold">gp_cached_segworkers_threshold</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#gp_command_count">gp_command_count</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#gp_connections_per_thread">gp_connections_per_thread</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#gp_debug_linger">gp_debug_linger</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#gp_dynamic_partition_pruning">gp_dynamic_partition_pruning</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#gp_enable_agg_distinct">gp_enable_agg_distinct</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#gp_enable_agg_distinct_pruning">gp_enable_agg_distinct_pruning</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#gp_enable_direct_dispatch">gp_enable_direct_dispatch</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#gp_enable_fallback_plan">gp_enable_fallback_plan</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#gp_enable_fast_sri">gp_enable_fast_sri</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#gp_enable_groupext_distinct_gather">gp_enable_groupext_distinct_gather</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#gp_enable_groupext_distinct_pruning">gp_enable_groupext_distinct_pruning</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#gp_enable_multiphase_agg">gp_enable_multiphase_agg</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#gp_enable_predicate_propagation">gp_enable_predicate_propagation</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#gp_enable_preunique">gp_enable_preunique</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#gp_enable_sequential_window_plans">gp_enable_sequential_window_plans</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#gp_enable_sort_distinct">gp_enable_sort_distinct</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#gp_enable_sort_limit">gp_enable_sort_limit</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#gp_external_enable_exec">gp_external_enable_exec</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#gp_external_grant_privileges">gp_external_grant_privileges</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#gp_external_max_segs">gp_external_max_segs</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#gp_filerep_tcp_keepalives_count">gp_filerep_tcp_keepalives_count</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#gp_filerep_tcp_keepalives_idle">gp_filerep_tcp_keepalives_idle</a></li>
-                  <li><a 
href="/docs/userguide/2.1.0.0-incubating/reference/guc/parameter_definitions.html#gp_filerep_tcp_keepalives_interval">gp_filerep_

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