diff --git a/Tests/DapperTests.csproj b/Tests/DapperTests.csproj
index be8c3e97a101a8c06eda5b8fca9684542eec333b..f31614a996cee728438a694dd59d13b560a090cc 100644
--- a/Tests/DapperTests.csproj
+++ b/Tests/DapperTests.csproj
@@ -65,6 +65,9 @@
     <Reference Include="NHibernate.ByteCode.LinFu">
       <HintPath>NHibernate\NHibernate.ByteCode.LinFu.dll</HintPath>
     </Reference>
+    <Reference Include="Npgsql">
+      <HintPath>..\..\..\WebSites\PoolBooking\bin\Npgsql.dll</HintPath>
+    </Reference>
     <Reference Include="ServiceStack.Common, Version=1.0.4110.36238, Culture=neutral, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
       <HintPath>OrmLite\ServiceStack.Common.dll</HintPath>
@@ -183,7 +186,7 @@
       <LastGenOutput>DataClasses.designer.cs</LastGenOutput>
       <SubType>Designer</SubType>
     </None>
-    <None Include="packages.config" />   
+    <None Include="packages.config" />
     <None Include="Properties\Settings.settings">
       <Generator>SettingsSingleFileGenerator</Generator>
       <LastGenOutput>Settings.Designer.cs</LastGenOutput>
diff --git a/Tests/Tests.cs b/Tests/Tests.cs
index 8d100a26a038047932f86f3f49fcc83705ac43bb..6df31847e579567d2caa0e7ee2472f317d7a8f97 100644
--- a/Tests/Tests.cs
+++ b/Tests/Tests.cs
@@ -1,4 +1,5 @@
-using System;
+#define POSTGRESQL
+using System;
 using System.Collections.Generic;
 using System.Data.SqlClient;
 using System.Linq;
@@ -8,6 +9,10 @@
 using System.Data;
 using System.Collections;
 using System.Reflection;
+#if POSTGRESQL
+using Dapper.Contrib.Extensions;
+using Npgsql;
+#endif
 
 namespace SqlMapper
 {
@@ -1335,5 +1340,49 @@ public enum ShortEnum : short
         {
             Zero = 0, One = 1, Two = 2, Three = 3, Four = 4, Five = 5, Six = 6
         }
+
+#if POSTGRESQL
+        [Table("tcat")]
+        class Cat
+        {
+            [Key]
+            public int Id { get; set; }
+            public string Breed { get; set; }
+            public string Name { get; set; }
+        }
+
+        Cat[] Cats = {
+                                new Cat() { Breed = "Abyssinian", Name="KACTUS"},
+                                new Cat() { Breed = "Aegean cat", Name="KADAFFI"},
+                                new Cat() { Breed = "American Bobtail", Name="KANJI"},
+                                new Cat() { Breed = "Balinese", Name="MACARONI"},
+                                new Cat() { Breed = "Bombay", Name="MACAULAY"},
+                                new Cat() { Breed = "Burmese", Name="MACBETH"},
+                                new Cat() { Breed = "Chartreux", Name="MACGYVER"},
+                                new Cat() { Breed = "German Rex", Name="MACKENZIE"},
+                                new Cat() { Breed = "Javanese", Name="MADISON"},
+                                new Cat() { Breed = "Persian", Name="MAGNA"}
+                            };
+
+        public void TestPostresqlArrayParameters()
+        {
+            using (var conn = new NpgsqlConnection("Server=localhost;Port=5432;User Id=dappertest;Password=dapperpass;Database=dappertest;Encoding=UNICODE"))
+            {
+                conn.Open();
+                IDbTransaction transaction = conn.BeginTransaction();
+                conn.Execute("create table tcat ( id serial not null, breed character varying(20) not null, name character varying (20) not null);");
+
+                foreach (var cat in Cats)
+                    conn.Insert(cat);
+
+                var r = conn.Query<Cat>("select * from tcat where id=any(:catids)", new { catids = new[] { 1, 3, 5 } });
+                r.Count().IsEqualTo(3);
+                r.Count(c => c.Id == 1).IsEqualTo(1);
+                r.Count(c => c.Id == 3).IsEqualTo(1);
+                r.Count(c => c.Id == 5).IsEqualTo(1);
+                transaction.Rollback();
+            }
+        }
+#endif
     }
 }