MONDRIAN: Integrating change #13038, added Vertica dialect, fix for M…

…ONDRIAN-617 contributed by Pedro Alves, Vertica doesn't support ORDER BY.. NULLS LAST type of queries. Invalid sql

[git-p4: depot-paths = "//open/mondrian-release/3.1/": change = 13039]

src/main/mondrian/olap/Mondrian.xml

@@ -1111,6 +1111,7 @@ Revision is $Id$
                 <li>ingres</li>
                 <li>infobright</li>
                 <li>luciddb</li>
+                <li>vertica</li>
                 </ul>
             </Doc>
         </Attribute>

src/main/mondrian/olap/Mondrian_SW.xml

@@ -1147,6 +1147,7 @@
                 <li>ingres</li>
                 <li>infobright</li>
                 <li>luciddb</li>
+                <li>vertica</li>
                 </ul>
             </Doc>
             <Value>generic</Value>
@@ -1164,6 +1165,7 @@
             <Value>ingres</Value>
             <Value>infobright</Value>
             <Value>luciddb</Value>
+            <Value>vertica</Value>
         </Attribute>
         <CData/>
         <Code><![CDATA[

src/main/mondrian/spi/Dialect.java

@@ -736,7 +736,8 @@ enum DatabaseProduct {
         MYSQL,
         SQLSTREAM,
         SYBASE,
-        TERADATA;
+        TERADATA,
+        VERTICA;
 
         /**
          * Return the root of the family of products this database product

src/main/mondrian/spi/impl/JdbcDialectImpl.java

@@ -861,6 +861,8 @@ public static DatabaseProduct getProduct(
             return DatabaseProduct.TERADATA;
         } else if (productName.toUpperCase().indexOf("HSQL") >= 0) {
             return DatabaseProduct.HSQLDB;
+        } else if (productName.toUpperCase().indexOf("VERTICA") >= 0) {
+            return DatabaseProduct.VERTICA;
         } else {
             return DatabaseProduct.UNKNOWN;
         }

src/main/mondrian/spi/impl/VerticaDialect.java

@@ -0,0 +1,56 @@
+/*
+// This software is subject to the terms of the Eclipse Public License v1.0
+// Agreement, available at the following URL:
+// http://www.eclipse.org/legal/epl-v10.html.
+// Copyright (C) 2009 Julian Hyde
+// All Rights Reserved.
+// You must accept the terms of that agreement to use this software.
+*/
+package mondrian.spi.impl;
+
+import java.sql.Connection;
+import java.sql.SQLException;
+
+/**
+ * Implementation of {@link mondrian.spi.Dialect} for the Vertica database.
+ *
+ * @author Pedro Alves
+ * @version $Id$
+ * @since Sept 11, 2009
+ */
+public class VerticaDialect extends JdbcDialectImpl {
+
+    public static final JdbcDialectFactory FACTORY =
+        new JdbcDialectFactory(
+            VerticaDialect.class,
+            DatabaseProduct.VERTICA);
+
+    /**
+     * Creates a VerticaDialect.
+     *
+     * @param connection Connection
+     */
+    public VerticaDialect(Connection connection) throws SQLException {
+        super(connection);
+    }
+
+    public boolean requiresAliasForFromQuery() {
+        return true;
+    }
+
+    @Override
+    public String generateOrderItem(
+            String expr,
+            boolean nullable,
+            boolean ascending)
+    {
+        if (ascending) {
+            return expr + " ASC";
+        } else {
+            return expr + " DESC";
+        }
+    }
+
+}
+
+// End VerticaDialect.java