From 778e8e9449210bda0f3fad71081ae3dc954e8a64 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Francesco=20Chicchiricc=C3=B2?= <ilgrosso@apache.org>
Date: Fri, 1 Sep 2017 06:38:48 +0000
Subject: [PATCH] [OPENJPA-2598] Applying provided patch

git-svn-id: https://svn.apache.org/repos/asf/openjpa/trunk@1806888 13f79535-47bb-0310-9956-ffa450edef68
---
 .../openjpa/jdbc/sql/SQLServerDictionary.java | 23 ++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/openjpa-jdbc/src/main/java/org/apache/openjpa/jdbc/sql/SQLServerDictionary.java b/openjpa-jdbc/src/main/java/org/apache/openjpa/jdbc/sql/SQLServerDictionary.java
index 4da2f1050..6d4e86dd3 100644
--- a/openjpa-jdbc/src/main/java/org/apache/openjpa/jdbc/sql/SQLServerDictionary.java
+++ b/openjpa-jdbc/src/main/java/org/apache/openjpa/jdbc/sql/SQLServerDictionary.java
@@ -72,7 +72,7 @@ public class SQLServerDictionary extends AbstractSQLServerDictionary {
         String driverName = meta.getDriverName();
         String url = meta.getURL();
         if (driverVendor == null) {
-            // serverMajorVersion of 8==2000, 9==2005, 10==2008
+            // serverMajorVersion of 8==2000, 9==2005, 10==2008,  11==2012
             if (meta.getDatabaseMajorVersion() >= 9)
                 setSupportsXMLColumn(true);
             if (meta.getDatabaseMajorVersion() >= 10) {
@@ -83,6 +83,12 @@ public class SQLServerDictionary extends AbstractSQLServerDictionary {
                 timestampTypeName = "DATETIME2";
                 datePrecision = MICRO / 10;
             }
+            if (meta.getDatabaseMajorVersion() >= 11) {
+                //SQLServer 2012 supports range select
+                rangePosition = RANGE_POST_SELECT;      
+                supportsSelectStartIndex = true;
+                supportsSelectEndIndex = true;
+            }
             if (driverName != null) {
                 if (driverName.startsWith("Microsoft SQL Server")) {
                     // v1.1, 1.2, 2.0 or 3.0 driver
@@ -342,4 +348,19 @@ public class SQLServerDictionary extends AbstractSQLServerDictionary {
         }
         buf.append(")");
     }
+
+    @Override
+    protected void appendSelectRange(SQLBuffer buf, long start, long end, boolean subselect) {
+        //SQL Server 2012 supports range select
+        if (this.getMajorVersion() >= 11) {
+            //we need an order by clause....
+            if (!buf.getSQL().contains(" ORDER BY ")) {
+                buf.append(" ORDER BY 1 ");
+            }
+            buf.append(" OFFSET ").append(Long.toString(start)).append(" ROWS ").
+                    append(" FETCH NEXT ").append(Long.toString(end - start)).append(" ROWS ONLY ");
+        } else {
+            super.appendSelectRange(buf, start, end, subselect);
+        }
+    }
 }