Fernando Oliveira's Postgress SQL Server Data Connector as a single commit.

* Added PostGreSQL support
* Added MySQL/MySQLXGroupData.cs
* PostgreSQL data access implementation
* PostgreSQL dll binarie and RegionStore.migrations
* Migrations Scripts from MSSQL to POSTGRES
* Postgres SQL Type fixes
* Postgres SQL Connection string
* Data type issues
* more fixes
* tests and +tests
* UUID x string - FIGHT!
* Fixed PG types to internal csharp types
* More data type fix (PostgreSQL fields are case sensitive) :(
* more field case sensitive fixes
* changed the migration files to be case sensitive for fields.
* fixed fields case
* finished converting, now search for hidden bugs.
* some more fixes
* bool type fixed
* more case fixes;
* creatorID case fixed
* case fields fixed
* fixed default now() for TMStamp fields with don't allow nulls.
* fix case sensitve for Region name and Estate name
* fixed case for names for search
* fix class name Error
* Bug fixed on select and migrations
* Un-Reverting my change due to Postgres issue with the ILIKE function
* Fixed some issued for Diva Distro
* Fixes for integration with Diva Distro
* Added System.Core to prebuild.xml for PG project
* Configured to make DIff for Push to OpenSim Project
* Diffs only to PostgreSQL mods.

OpenSim/Data/PGSQL/PGSQLManager.cs

@@ -0,0 +1,321 @@
+/*
+ * Copyright (c) Contributors, http://opensimulator.org/
+ * See CONTRIBUTORS.TXT for a full list of copyright holders.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of the OpenSimulator Project nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Collections.Generic;
+using System.Data;
+using System.IO;
+using System.Reflection;
+using log4net;
+using OpenMetaverse;
+using Npgsql;
+using NpgsqlTypes;
+
+namespace OpenSim.Data.PGSQL
+{
+    /// <summary>
+    /// A management class for the MS SQL Storage Engine
+    /// </summary>
+    public class PGSQLManager
+    {
+//        private static readonly ILog m_log = LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
+
+        /// <summary>
+        /// Connection string for ADO.net
+        /// </summary>
+        private readonly string connectionString;
+
+        /// <summary>
+        /// Initialize the manager and set the connectionstring
+        /// </summary>
+        /// <param name="connection"></param>
+        public PGSQLManager(string connection)
+        {
+            connectionString = connection;
+        }
+
+        /// <summary>
+        /// Type conversion to a SQLDbType functions
+        /// </summary>
+        /// <param name="type"></param>
+        /// <returns></returns>
+        internal NpgsqlDbType DbtypeFromType(Type type)
+        {
+            if (type == typeof(string))
+            {
+                return NpgsqlDbType.Varchar;
+            }
+            if (type == typeof(double))
+            {
+                return NpgsqlDbType.Double;
+            }
+            if (type == typeof(Single))
+            {
+                return NpgsqlDbType.Double;
+            }
+            if (type == typeof(int))
+            {
+                return NpgsqlDbType.Integer;
+            }
+            if (type == typeof(bool))
+            {
+                return NpgsqlDbType.Boolean;
+            }
+            if (type == typeof(UUID))
+            {
+                return NpgsqlDbType.Uuid;
+            }
+            if (type == typeof(byte))
+            {
+                return NpgsqlDbType.Smallint;
+            }
+            if (type == typeof(sbyte))
+            {
+                return NpgsqlDbType.Integer;
+            }
+            if (type == typeof(Byte[]))
+            {
+                return NpgsqlDbType.Bytea;
+            }
+            if (type == typeof(uint) || type == typeof(ushort))
+            {
+                return NpgsqlDbType.Integer;
+            }
+            if (type == typeof(ulong))
+            {
+                return NpgsqlDbType.Bigint;
+            }
+            if (type == typeof(DateTime))
+            {
+                return NpgsqlDbType.Timestamp;
+            }
+
+            return NpgsqlDbType.Varchar;
+        }
+
+        internal NpgsqlDbType DbtypeFromString(Type type, string PGFieldType)
+        {
+            if (PGFieldType == "")
+            {
+                return DbtypeFromType(type);
+            }
+
+            if (PGFieldType == "character varying")
+            {
+                return NpgsqlDbType.Varchar;
+            }
+            if (PGFieldType == "double precision")
+            {
+                return NpgsqlDbType.Double;
+            }
+            if (PGFieldType == "integer")
+            {
+                return NpgsqlDbType.Integer;
+            }
+            if (PGFieldType == "smallint")
+            {
+                return NpgsqlDbType.Smallint;
+            }
+            if (PGFieldType == "boolean")
+            {
+                return NpgsqlDbType.Boolean;
+            }
+            if (PGFieldType == "uuid")
+            {
+                return NpgsqlDbType.Uuid;
+            }
+            if (PGFieldType == "bytea")
+            {
+                return NpgsqlDbType.Bytea;
+            }
+
+            return DbtypeFromType(type);
+        }
+
+        /// <summary>
+        /// Creates value for parameter.
+        /// </summary>
+        /// <param name="value">The value.</param>
+        /// <returns></returns>
+        private static object CreateParameterValue(object value)
+        {
+            Type valueType = value.GetType();
+
+            if (valueType == typeof(UUID)) //TODO check if this works
+            {
+                return ((UUID) value).Guid;
+            }
+            if (valueType == typeof(UUID))
+            {
+                return ((UUID)value).Guid;
+            }
+            if (valueType == typeof(bool))
+            {
+                return (bool)value;
+            }
+            if (valueType == typeof(Byte[]))
+            {
+                return value;
+            }
+            if (valueType == typeof(int))
+            {
+                return value;
+            }
+            return value;
+        }
+
+        /// <summary>
+        ///  Create value for parameter based on PGSQL Schema
+        /// </summary>
+        /// <param name="value"></param>
+        /// <param name="PGFieldType"></param>
+        /// <returns></returns>
+        internal static object CreateParameterValue(object value, string PGFieldType)
+        {
+            if (PGFieldType == "uuid")
+            {
+                UUID uidout;
+                UUID.TryParse(value.ToString(), out uidout);
+                return uidout;
+            }
+            if (PGFieldType == "integer")
+            {
+                int intout;
+                int.TryParse(value.ToString(), out intout);
+                return intout;
+            }
+            if (PGFieldType == "boolean")
+            {
+                return (value.ToString() == "true");
+            }
+            if (PGFieldType == "timestamp with time zone")
+            {
+                return (DateTime)value;
+            }
+            if (PGFieldType == "timestamp without time zone")
+            {
+                return (DateTime)value;
+            }
+            return CreateParameterValue(value);
+        }
+
+        /// <summary>
+        /// Create a parameter for a command
+        /// </summary>
+        /// <param name="parameterName">Name of the parameter.</param>
+        /// <param name="parameterObject">parameter object.</param>
+        /// <returns></returns>
+        internal NpgsqlParameter CreateParameter(string parameterName, object parameterObject)
+        {
+            return CreateParameter(parameterName, parameterObject, false);
+        }
+
+        /// <summary>
+        /// Creates the parameter for a command.
+        /// </summary>
+        /// <param name="parameterName">Name of the parameter.</param>
+        /// <param name="parameterObject">parameter object.</param>
+        /// <param name="parameterOut">if set to <c>true</c> parameter is a output parameter</param>
+        /// <returns></returns>
+        internal NpgsqlParameter CreateParameter(string parameterName, object parameterObject, bool parameterOut)
+        {
+            //Tweak so we dont always have to add : sign
+            if (parameterName.StartsWith(":")) parameterName = parameterName.Replace(":","");
+
+            //HACK if object is null, it is turned into a string, there are no nullable type till now
+            if (parameterObject == null) parameterObject = "";
+
+            NpgsqlParameter parameter = new NpgsqlParameter(parameterName, DbtypeFromType(parameterObject.GetType()));
+
+            if (parameterOut)
+            {
+                parameter.Direction = ParameterDirection.Output;
+            }
+            else
+            {
+                parameter.Direction = ParameterDirection.Input;
+                parameter.Value = CreateParameterValue(parameterObject);
+            }
+
+            return parameter;
+        }
+
+        /// <summary>
+        /// Create a parameter with PGSQL schema type
+        /// </summary>
+        /// <param name="parameterName"></param>
+        /// <param name="parameterObject"></param>
+        /// <param name="PGFieldType"></param>
+        /// <returns></returns>
+        internal NpgsqlParameter CreateParameter(string parameterName, object parameterObject, string PGFieldType)
+        {
+            //Tweak so we dont always have to add : sign
+            if (parameterName.StartsWith(":")) parameterName = parameterName.Replace(":", "");
+
+            //HACK if object is null, it is turned into a string, there are no nullable type till now
+            if (parameterObject == null) parameterObject = "";
+
+            NpgsqlParameter parameter = new NpgsqlParameter(parameterName, DbtypeFromString(parameterObject.GetType(), PGFieldType));
+
+            parameter.Direction = ParameterDirection.Input;
+            parameter.Value = CreateParameterValue(parameterObject, PGFieldType);
+
+            return parameter;
+        }
+
+        /// <summary>
+        /// Checks if we need to do some migrations to the database
+        /// </summary>
+        /// <param name="migrationStore">migrationStore.</param>
+        public void CheckMigration(string migrationStore)
+        {
+            using (NpgsqlConnection connection = new NpgsqlConnection(connectionString)) 
+            {
+                connection.Open();
+                Assembly assem = GetType().Assembly;
+                PGSQLMigration migration = new PGSQLMigration(connection, assem, migrationStore);
+
+                migration.Update();
+            }
+        }
+
+        /// <summary>
+        /// Returns the version of this DB provider
+        /// </summary>
+        /// <returns>A string containing the DB provider</returns>
+        public string getVersion()
+        {
+            Module module = GetType().Module;
+            // string dllName = module.Assembly.ManifestModule.Name;
+            Version dllVersion = module.Assembly.GetName().Version;
+
+            return
+                string.Format("{0}.{1}.{2}.{3}", dllVersion.Major, dllVersion.Minor, dllVersion.Build,
+                              dllVersion.Revision);
+        }
+    }
+}