diff --git a/src/Umbraco.Core/Persistence/DatabaseModelDefinitions/DbIndexDefinition.cs b/src/Umbraco.Core/Persistence/DatabaseModelDefinitions/DbIndexDefinition.cs
new file mode 100644
index 0000000000..e495d61550
--- /dev/null
+++ b/src/Umbraco.Core/Persistence/DatabaseModelDefinitions/DbIndexDefinition.cs
@@ -0,0 +1,13 @@
+namespace Umbraco.Core.Persistence.DatabaseModelDefinitions
+{
+    /// <summary>
+    /// Represents a database index definition retreived by querying the database
+    /// </summary>
+    internal class DbIndexDefinition
+    {
+        public virtual string IndexName { get; set; }
+        public virtual string TableName { get; set; }
+        public virtual string ColumnName { get; set; }
+        public virtual bool IsUnique { get; set; }
+    }
+}
\ No newline at end of file
diff --git a/src/Umbraco.Core/Persistence/Migrations/Initial/DatabaseSchemaCreation.cs b/src/Umbraco.Core/Persistence/Migrations/Initial/DatabaseSchemaCreation.cs
index 53f1938c00..398b36e43c 100644
--- a/src/Umbraco.Core/Persistence/Migrations/Initial/DatabaseSchemaCreation.cs
+++ b/src/Umbraco.Core/Persistence/Migrations/Initial/DatabaseSchemaCreation.cs
@@ -125,6 +125,16 @@ namespace Umbraco.Core.Persistence.Migrations.Initial
         {
             var result = new DatabaseSchemaResult();
 
+            //get the db index defs
+            result.DbIndexDefinitions = SqlSyntaxContext.SqlSyntaxProvider.GetDefinedIndexes(_database)
+                .Select(x => new DbIndexDefinition()
+                {
+                    TableName = x.Item1,
+                    IndexName = x.Item2,
+                    ColumnName = x.Item3,
+                    IsUnique = x.Item4
+                }).ToArray();
+
             foreach (var item in OrderedTables.OrderBy(x => x.Key))
             {
                 var tableDefinition = DefinitionFactory.GetTableDefinition(item.Value);
diff --git a/src/Umbraco.Core/Persistence/Migrations/Initial/DatabaseSchemaResult.cs b/src/Umbraco.Core/Persistence/Migrations/Initial/DatabaseSchemaResult.cs
index c70eb820b8..968acfc4bd 100644
--- a/src/Umbraco.Core/Persistence/Migrations/Initial/DatabaseSchemaResult.cs
+++ b/src/Umbraco.Core/Persistence/Migrations/Initial/DatabaseSchemaResult.cs
@@ -29,6 +29,8 @@ namespace Umbraco.Core.Persistence.Migrations.Initial
 
         public List<string> ValidConstraints { get; set; }
 
+        internal IEnumerable<DbIndexDefinition> DbIndexDefinitions { get; set; } 
+
         /// <summary>
         /// Determines the version of the currently installed database.
         /// </summary>
diff --git a/src/Umbraco.Core/Persistence/Migrations/Upgrades/TargetVersionSixTwoZero/AdditionalIndexesAndKeys.cs b/src/Umbraco.Core/Persistence/Migrations/Upgrades/TargetVersionSixTwoZero/AdditionalIndexesAndKeys.cs
index a5e99bd607..f1f7f6c043 100644
--- a/src/Umbraco.Core/Persistence/Migrations/Upgrades/TargetVersionSixTwoZero/AdditionalIndexesAndKeys.cs
+++ b/src/Umbraco.Core/Persistence/Migrations/Upgrades/TargetVersionSixTwoZero/AdditionalIndexesAndKeys.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Linq;
 using Umbraco.Core.Configuration;
 using Umbraco.Core.Persistence.Migrations.Initial;
 
@@ -12,10 +13,24 @@ namespace Umbraco.Core.Persistence.Migrations.Upgrades.TargetVersionSixTwoZero
             var dbSchema = new DatabaseSchemaCreation(Context.Database);
             var schemaResult = dbSchema.ValidateSchema();
 
-            Create.Index("IX_umbracoNodeTrashed").OnTable("umbracoNode").OnColumn("trashed").Ascending().WithOptions().NonClustered();
-            Create.Index("IX_cmsContentVersion_ContentId").OnTable("cmsContentVersion").OnColumn("ContentId").Ascending().WithOptions().NonClustered();
-            Create.Index("IX_cmsDocument_published").OnTable("cmsDocument").OnColumn("published").Ascending().WithOptions().NonClustered();
-            Create.Index("IX_cmsDocument_newest").OnTable("cmsDocument").OnColumn("newest").Ascending().WithOptions().NonClustered();
+            //do not create any indexes if they already exist in the database
+
+            if (schemaResult.DbIndexDefinitions.Any(x => x.IndexName == "IX_umbracoNodeTrashed") == false)
+            {
+                Create.Index("IX_umbracoNodeTrashed").OnTable("umbracoNode").OnColumn("trashed").Ascending().WithOptions().NonClustered();    
+            }
+            if (schemaResult.DbIndexDefinitions.Any(x => x.IndexName == "IX_cmsContentVersion_ContentId") == false)
+            {
+                Create.Index("IX_cmsContentVersion_ContentId").OnTable("cmsContentVersion").OnColumn("ContentId").Ascending().WithOptions().NonClustered();
+            }
+            if (schemaResult.DbIndexDefinitions.Any(x => x.IndexName == "IX_cmsDocument_published") == false)
+            {
+                Create.Index("IX_cmsDocument_published").OnTable("cmsDocument").OnColumn("published").Ascending().WithOptions().NonClustered();
+            }
+            if (schemaResult.DbIndexDefinitions.Any(x => x.IndexName == "IX_cmsDocument_newest") == false)
+            {
+                Create.Index("IX_cmsDocument_newest").OnTable("cmsDocument").OnColumn("newest").Ascending().WithOptions().NonClustered();
+            }
         }
 
         public override void Down()
diff --git a/src/Umbraco.Core/Persistence/SqlSyntax/MySqlSyntaxProvider.cs b/src/Umbraco.Core/Persistence/SqlSyntax/MySqlSyntaxProvider.cs
index 97e94457b8..b1554045f0 100644
--- a/src/Umbraco.Core/Persistence/SqlSyntax/MySqlSyntaxProvider.cs
+++ b/src/Umbraco.Core/Persistence/SqlSyntax/MySqlSyntaxProvider.cs
@@ -130,7 +130,7 @@ ORDER BY TABLE_NAME, INDEX_NAME",
                 list =
                     indexes.Select(
                         item =>
-                        new Tuple<string, string, string, bool>(item.TABLE_NAME, item.INDEX_NAME, item.COLUMN_NAME, item.UNIQUE))
+                        new Tuple<string, string, string, bool>(item.TABLE_NAME, item.INDEX_NAME, item.COLUMN_NAME, item.UNIQUE == 1))
                          .ToList();
             }
             finally
diff --git a/src/Umbraco.Core/Persistence/SqlSyntax/SqlCeSyntaxProvider.cs b/src/Umbraco.Core/Persistence/SqlSyntax/SqlCeSyntaxProvider.cs
index 769d5547f4..a0acd8a8a8 100644
--- a/src/Umbraco.Core/Persistence/SqlSyntax/SqlCeSyntaxProvider.cs
+++ b/src/Umbraco.Core/Persistence/SqlSyntax/SqlCeSyntaxProvider.cs
@@ -233,7 +233,7 @@ namespace Umbraco.Core.Persistence.SqlSyntax
                     "SELECT TABLE_NAME, INDEX_NAME, COLUMN_NAME, [UNIQUE] FROM INFORMATION_SCHEMA.INDEXES ORDER BY TABLE_NAME, INDEX_NAME");
             return
                 items.Select(
-                    item => new Tuple<string, string, string, bool>(item.TABLE_NAME, item.INDEX_NAME, item.COLUMN_NAME, item.UNIQUE));
+                    item => new Tuple<string, string, string, bool>(item.TABLE_NAME, item.INDEX_NAME, item.COLUMN_NAME, item.UNIQUE == 1));
         }
 
         public override bool DoesTableExist(Database db, string tableName)
diff --git a/src/Umbraco.Core/Persistence/SqlSyntax/SqlServerSyntaxProvider.cs b/src/Umbraco.Core/Persistence/SqlSyntax/SqlServerSyntaxProvider.cs
index 07c1d97c7e..00311d6af6 100644
--- a/src/Umbraco.Core/Persistence/SqlSyntax/SqlServerSyntaxProvider.cs
+++ b/src/Umbraco.Core/Persistence/SqlSyntax/SqlServerSyntaxProvider.cs
@@ -161,7 +161,8 @@ from sys.tables as T inner join sys.indexes as I on T.[object_id] = I.[object_id
    inner join sys.index_columns as IC on IC.[object_id] = I.[object_id] and IC.[index_id] = I.[index_id] 
    inner join sys.all_columns as AC on IC.[object_id] = AC.[object_id] and IC.[column_id] = AC.[column_id] 
 order by T.name, I.name");
-            return items.Select(item => new Tuple<string, string, string, bool>(item.TABLE_NAME, item.INDEX_NAME, item.COLUMN_NAME, item.UNIQUE)).ToList();
+            return items.Select(item => new Tuple<string, string, string, bool>(item.TABLE_NAME, item.INDEX_NAME, item.COLUMN_NAME, 
+                item.UNIQUE == 1)).ToList();
             
         }
 
diff --git a/src/Umbraco.Core/Umbraco.Core.csproj b/src/Umbraco.Core/Umbraco.Core.csproj
index 98a2aab8b9..db16a05848 100644
--- a/src/Umbraco.Core/Umbraco.Core.csproj
+++ b/src/Umbraco.Core/Umbraco.Core.csproj
@@ -211,6 +211,7 @@
     <Compile Include="Models\PublishedContent\PublishedContentModel.cs" />
     <Compile Include="Models\PublishedContent\PublishedContentModelFactoryResolver.cs" />
     <Compile Include="Models\TemplateNode.cs" />
+    <Compile Include="Persistence\DatabaseModelDefinitions\DbIndexDefinition.cs" />
     <Compile Include="Persistence\Factories\MemberGroupFactory.cs" />
     <Compile Include="Persistence\Mappers\MemberGroupMapper.cs" />
     <Compile Include="Persistence\Querying\SqlStringExtensions.cs" />