uint fixes

Author: jogibear9988

src/Migrator.Providers/Impl/Mysql/MysqlDialect.cs

@@ -35,7 +35,10 @@ public MysqlDialect()
 			RegisterColumnType(DbType.Guid, "VARCHAR(40)");
 			RegisterColumnType(DbType.Int16, "SMALLINT");
 			RegisterColumnType(DbType.Int32, "INTEGER");
-			RegisterColumnType(DbType.Int64, "BIGINT");
+			RegisterColumnType(DbType.Int64, "BIGINT");
+            RegisterColumnType(DbType.UInt16, "INTEGER");
+            RegisterColumnType(DbType.UInt32, "BIGINT");
+            RegisterColumnType(DbType.UInt64, "NUMERIC(20,0)");
 			RegisterColumnType(DbType.Single, "FLOAT");
 			RegisterColumnType(DbType.StringFixedLength, "CHAR(255)");
 			RegisterColumnType(DbType.StringFixedLength, 255, "CHAR($l)");

src/Migrator.Providers/Impl/PostgreSQL/PostgreSQLDialect.cs

@@ -26,6 +26,9 @@ public PostgreSQLDialect()
             RegisterColumnType(DbType.Int16, "int2");
             RegisterColumnType(DbType.Int32, "int4");
             RegisterColumnType(DbType.Int64, "int8");
+            RegisterColumnType(DbType.UInt16, "int4");
+            RegisterColumnType(DbType.UInt32, "int8");
+            RegisterColumnType(DbType.UInt64, "decimal(20,0)");			
             RegisterColumnType(DbType.Single, "float4");
             RegisterColumnType(DbType.StringFixedLength, "char(255)");
             RegisterColumnType(DbType.StringFixedLength, 4000, "char($l)");

src/Migrator.Providers/Impl/SqlServer/SqlServerDialect.cs

@@ -33,6 +33,9 @@ public SqlServerDialect()
 			RegisterColumnType(DbType.Int16, "SMALLINT");
 			RegisterColumnType(DbType.Int32, "INT");
 			RegisterColumnType(DbType.Int64, "BIGINT");
+            RegisterColumnType(DbType.UInt16, "INT");
+            RegisterColumnType(DbType.UInt32, "BIGINT");
+            RegisterColumnType(DbType.UInt64, "DECIMAL(20,0)");
 			RegisterColumnType(DbType.Single, "REAL"); //synonym for FLOAT(24) 
 			RegisterColumnType(DbType.StringFixedLength, "NCHAR(255)");
 		    RegisterColumnType(DbType.StringFixedLength, int.MaxValue - 1, "NCHAR($l)");