diff --git a/.travis.yml b/.travis.yml
index e4b8278..8dff4a3 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,8 +7,10 @@ php:
 
 env:
   - DB=mysql
+  - DB=postgres
 
 before_script:
   - sh -c "if [ '$DB' = 'mysql' ]; then mysql -e 'create database IF NOT EXISTS yiitest;'; fi"
-
+  - sh -c "if [ '$DB' = 'postgres' ]; then psql -U postgres -c 'drop database if exists yiitest;'; fi"
+  - sh -c "if [ '$DB' = 'postgres' ]; then psql -U postgres -c 'create database yiitest;'; fi"
 script: phpunit
\ No newline at end of file
diff --git a/framework/yii/db/Connection.php b/framework/yii/db/Connection.php
index 3a4d0ad..6a252bf 100644
--- a/framework/yii/db/Connection.php
+++ b/framework/yii/db/Connection.php
@@ -343,6 +343,8 @@ class Connection extends Component
 			$driver = strtolower(substr($this->dsn, 0, $pos));
 			if ($driver === 'mssql' || $driver === 'dblib' || $driver === 'sqlsrv') {
 				$pdoClass = 'yii\db\mssql\PDO';
+			} else if ($driver === 'pgsql') {
+				$pdoClass = 'yii\db\pgsql\PDO';
 			}
 		}
 		return new $pdoClass($this->dsn, $this->username, $this->password, $this->attributes);
diff --git a/framework/yii/db/pgsql/PDO.php b/framework/yii/db/pgsql/PDO.php
new file mode 100644
index 0000000..3f5996a
--- /dev/null
+++ b/framework/yii/db/pgsql/PDO.php
@@ -0,0 +1,103 @@
+<?php
+
+/**
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright (c) 2008 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+namespace yii\db\pgsql;
+
+/**
+ * This is an extension of the default PDO class for PostgreSQL drivers.
+ * It provides additional low level functionality for setting database 
+ * configuration parameters.
+ *
+ * @author Gevik babakhani <gevikb@gmail.com>
+ * @since 2.0
+ */
+class PDO extends \PDO
+{
+
+	const OPT_SEARCH_PATH = 'search_path';
+	const OPT_DEFAULT_SCHEMA = 'default_schema';
+	const DEFAULT_SCHEMA = 'public';
+
+	private $_currentDatabase;
+
+	/**
+	 * Returns value of the last inserted ID.
+	 * @param string|null $sequence the sequence name. Defaults to null.
+	 * @return integer last inserted ID value.
+	 */
+	public function lastInsertId($sequence = null) {
+		if ($sequence !== null) {
+			$sequence = $this->quote($sequence);
+			return $this->query("SELECT currval({$sequence})")->fetchColumn();
+		} else {
+			return null;
+		}
+	}
+
+	/**
+	 * Here we override the default PDO constructor in order to 
+	 * find and set the default schema search path.
+	 */
+	public function __construct($dsn, $username, $passwd, $options) {
+		$searchPath = null;
+		if (is_array($options)) {
+			if (isset($options[self::OPT_SEARCH_PATH])) {
+				$matches = null;
+				if (preg_match("/(\s?)+(\w)+((\s+)?,(\s+)?\w+)*/", $options[self::OPT_SEARCH_PATH], $matches) === 1) {
+					$searchPath = $matches[0];
+				}
+			}
+			if (isset($options[self::OPT_DEFAULT_SCHEMA])) {
+				$schema = trim($options[self::OPT_DEFAULT_SCHEMA]);
+				if (!empty($schema)) {
+					Schema::$DEFAULT_SCHEMA = $schema;
+				}
+			}
+			if (is_null(Schema::$DEFAULT_SCHEMA) || empty(Schema::$DEFAULT_SCHEMA)) {
+				Schema::$DEFAULT_SCHEMA = self::DEFAULT_SCHEMA;
+			}
+		}
+		parent::__construct($dsn, $username, $passwd, $options);
+		if (!is_null($searchPath)) {
+			$this->setSchemaSearchPath($searchPath);
+		}
+	}
+
+	/**
+	 * Returns the name of the current (connected) database 
+	 * @return string
+	 */
+	public function getCurrentDatabase() {
+		if (is_null($this->_currentDatabase)) {
+			return $this->query('select current_database()')->fetchColumn();
+		}
+	}
+
+	/**
+	 * Sets the schema search path of the current users session.
+	 * The syntax of the path is a comma separated string with 
+	 * your custom search path at the beginning and the "public"
+	 * schema at the end. 
+	 * 
+	 * This method automatically adds the "public" schema at the 
+	 * end of the search path if it is not provied.
+	 * @param string custom schema search path. defaults to public
+	 */
+	public function setSchemaSearchPath($searchPath = 'public') {
+		$schemas = explode(',', str_replace(' ', '', $searchPath));
+		if (end($schemas) !== 'public') {
+			$schemas[] = 'public';
+		}
+		foreach ($schemas as $k => $item) {
+			$schemas[$k] = '"' . str_replace(array('"', "'", ';'), '', $item) . '"';
+		}
+		$path = implode(', ', $schemas);
+		$this->exec('SET search_path TO ' . $path);
+	}
+
+}
diff --git a/framework/yii/db/pgsql/QueryBuilder.php b/framework/yii/db/pgsql/QueryBuilder.php
new file mode 100644
index 0000000..3417ad9
--- /dev/null
+++ b/framework/yii/db/pgsql/QueryBuilder.php
@@ -0,0 +1,41 @@
+<?php
+
+/**
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright (c) 2008 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+namespace yii\db\pgsql;
+
+/**
+ * QueryBuilder is the query builder for PostgreSQL databases.
+ *
+ * @author Gevik Babakhani <gevikb@gmail.com>
+ * @since 2.0
+ */
+class QueryBuilder extends \yii\db\QueryBuilder
+{
+
+	/**
+	 * @var array mapping from abstract column types (keys) to physical column types (values).
+	 */
+	public $typeMap = array(
+	    Schema::TYPE_PK => 'serial not null primary key',
+	    Schema::TYPE_STRING => 'varchar',
+	    Schema::TYPE_TEXT => 'text',
+	    Schema::TYPE_SMALLINT => 'smallint',
+	    Schema::TYPE_INTEGER => 'integer',
+	    Schema::TYPE_BIGINT => 'bigint',
+	    Schema::TYPE_FLOAT => 'double precision',
+	    Schema::TYPE_DECIMAL => 'numeric',
+	    Schema::TYPE_DATETIME => 'timestamp',
+	    Schema::TYPE_TIMESTAMP => 'timestamp',
+	    Schema::TYPE_TIME => 'time',
+	    Schema::TYPE_DATE => 'date',
+	    Schema::TYPE_BINARY => 'bytea',
+	    Schema::TYPE_BOOLEAN => 'boolean',
+	    Schema::TYPE_MONEY => 'numeric(19,4)',
+	);
+
+}
diff --git a/framework/yii/db/pgsql/Schema.php b/framework/yii/db/pgsql/Schema.php
new file mode 100644
index 0000000..97a3ef4
--- /dev/null
+++ b/framework/yii/db/pgsql/Schema.php
@@ -0,0 +1,294 @@
+<?php
+
+/**
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright (c) 2008 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+namespace yii\db\pgsql;
+
+use yii\db\TableSchema;
+use yii\db\ColumnSchema;
+
+/**
+ * Schema is the class for retrieving metadata from a PostgreSQL database 
+ * (version 9.x and above).
+ *
+ * @author Gevik Babakhani <gevikb@gmail.com>
+ * @since 2.0
+ */
+class Schema extends \yii\db\Schema
+{
+
+	/**
+	 * The default schema used for the current session. This value is 
+	 * automatically set to "public" by the PDO driver. 
+	 * @var string 
+	 */
+	public static $DEFAULT_SCHEMA;
+
+	/**
+	 * @var array mapping from physical column types (keys) to abstract 
+	 * column types (values)
+	 */
+	public $typeMap = array(
+	    'abstime' => self::TYPE_TIMESTAMP,
+	    'bit' => self::TYPE_STRING,
+	    'boolean' => self::TYPE_BOOLEAN,
+	    'box' => self::TYPE_STRING,
+	    'character' => self::TYPE_STRING,
+	    'bytea' => self::TYPE_BINARY,
+	    'char' => self::TYPE_STRING,
+	    'cidr' => self::TYPE_STRING,
+	    'circle' => self::TYPE_STRING,
+	    'date' => self::TYPE_DATE,
+	    'real' => self::TYPE_FLOAT,
+	    'double precision' => self::TYPE_DECIMAL,
+	    'inet' => self::TYPE_STRING,
+	    'smallint' => self::TYPE_SMALLINT,
+	    'integer' => self::TYPE_INTEGER,
+	    'bigint' => self::TYPE_BIGINT,
+	    'interval' => self::TYPE_STRING,
+	    'json' => self::TYPE_STRING,
+	    'line' => self::TYPE_STRING,
+	    'macaddr' => self::TYPE_STRING,
+	    'money' => self::TYPE_MONEY,
+	    'name' => self::TYPE_STRING,
+	    'numeric' => self::TYPE_STRING,
+	    'numrange' => self::TYPE_DECIMAL,
+	    'oid' => self::TYPE_BIGINT, // should not be used. it's pg internal!
+	    'path' => self::TYPE_STRING,
+	    'point' => self::TYPE_STRING,
+	    'polygon' => self::TYPE_STRING,
+	    'text' => self::TYPE_TEXT,
+	    'time without time zone' => self::TYPE_TIME,
+	    'timestamp without time zone' => self::TYPE_TIMESTAMP,
+	    'timestamp with time zone' => self::TYPE_TIMESTAMP,
+	    'time with time zone' => self::TYPE_TIMESTAMP,
+	    'unknown' => self::TYPE_STRING,
+	    'uuid' => self::TYPE_STRING,
+	    'bit varying' => self::TYPE_STRING,
+	    'character varying' => self::TYPE_STRING,
+	    'xml' => self::TYPE_STRING
+	);
+
+	/**
+	 * Creates a query builder for the MySQL database.
+	 * @return QueryBuilder query builder instance
+	 */
+	public function createQueryBuilder() {
+		return new QueryBuilder($this->db);
+	}
+
+	/**
+	 * Resolves the table name and schema name (if any).
+	 * @param TableSchema $table the table metadata object
+	 * @param string $name the table name
+	 */
+	protected function resolveTableNames($table, $name) {
+		$parts = explode('.', str_replace('"', '', $name));
+		if (isset($parts[1])) {
+			$table->schemaName = $parts[0];
+			$table->name = $parts[1];
+		} else {
+			$table->name = $parts[0];
+		}
+		if ($table->schemaName === null) {
+			$table->schemaName = self::$DEFAULT_SCHEMA;
+		}
+	}
+
+	/**
+	 * Quotes a table name for use in a query.
+	 * A simple table name has no schema prefix.
+	 * @param string $name table name
+	 * @return string the properly quoted table name
+	 */
+	public function quoteSimpleTableName($name) {
+		return strpos($name, '"') !== false ? $name : '"' . $name . '"';
+	}
+
+	/**
+	 * Loads the metadata for the specified table.
+	 * @param string $name table name
+	 * @return TableSchema|null driver dependent table metadata. Null if the table does not exist.
+	 */
+	public function loadTableSchema($name) {
+		$table = new TableSchema();
+		$this->resolveTableNames($table, $name);
+		if ($this->findColumns($table)) {
+			$this->findConstraints($table);
+			return $table;
+		}
+	}
+
+	/**
+	 * Collects the foreign key column details for the given table.
+	 * @param TableSchema $table the table metadata
+	 */
+	protected function findConstraints($table) {
+
+		$tableName = $this->quoteValue($table->name);
+		$tableSchema = $this->quoteValue($table->schemaName);
+		$database = $this->quoteValue($this->db->pdo->getCurrentDatabase());
+
+		//We need to extract the constraints de hard way since:
+		//http://www.postgresql.org/message-id/26677.1086673982@sss.pgh.pa.us
+
+		$sql = <<<SQL
+select 
+	ct.conname as containst,
+	c.relname as table_name,
+	ns.nspname as table_schema,
+	current_database() as table_catalog,
+	(select string_agg(attname,',') attname from pg_attribute where attrelid=ct.conrelid and attnum = any(ct.conkey)) as columns,
+	fc.relname as foreign_table_name,
+	fns.nspname as foreign_table_schema,
+	current_database() as foreign_table_catalog,
+	(select string_agg(attname,',') attname from pg_attribute where attrelid=ct.confrelid and attnum = any(ct.confkey)) as foreign_columns
+from
+	pg_constraint ct 
+	inner join pg_class c on c.oid=ct.conrelid
+	inner join pg_namespace ns on c.relnamespace=ns.oid
+	left join pg_class fc on fc.oid=ct.confrelid
+	left join pg_namespace fns on fc.relnamespace=fns.oid
+	
+where
+	ct.contype='f'
+	and c.relname={$tableName}
+	and ns.nspname={$tableSchema}
+	and current_database() = {$database}	
+SQL;
+
+		try {
+			$constraints = $this->db->createCommand($sql)->queryAll();
+		} catch (\Exception $e) {
+			return false;
+		}
+		foreach ($constraints as $constraint) {
+			$columns = explode(',', $constraint['columns']);
+			$fcolumns = explode(',', $constraint['foreign_columns']);
+			$citem = array($constraint['foreign_table_name']);
+			foreach ($columns as $idx => $column) {
+				$citem[] = array($fcolumns[$idx] => $column);
+			}
+			$table->foreignKeys[] = $citem;
+		}
+		return true;
+	}
+
+	/**
+	 * Collects the metadata of table columns.
+	 * @param TableSchema $table the table metadata
+	 * @return boolean whether the table exists in the database
+	 */
+	protected function findColumns($table) {
+		$dbname = $this->db->quoteValue($this->db->pdo->getCurrentDatabase());
+		$tableName = $this->db->quoteValue($table->name);
+		$schemaName = $this->db->quoteValue($table->schemaName);
+		$sql = <<<SQL
+SELECT 
+	current_database() as table_catalog,
+	d.nspname AS table_schema,        
+        c.relname AS table_name,
+        a.attname AS column_name,
+        t.typname AS data_type,
+        a.attlen AS character_maximum_length,
+        pg_catalog.col_description(c.oid, a.attnum) AS column_comment,
+        a.atttypmod AS modifier,
+        a.attnotnull = false AS is_nullable,	
+        CAST(pg_get_expr(ad.adbin, ad.adrelid) AS varchar) AS column_default,
+        coalesce(pg_get_expr(ad.adbin, ad.adrelid) ~ 'nextval',false) AS is_autoinc,
+        array_to_string((select array_agg(enumlabel) from pg_enum where enumtypid=a.atttypid)::varchar[],',') as enum_values,
+	CASE atttypid
+		 WHEN 21 /*int2*/ THEN 16
+		 WHEN 23 /*int4*/ THEN 32
+		 WHEN 20 /*int8*/ THEN 64
+		 WHEN 1700 /*numeric*/ THEN
+		      CASE WHEN atttypmod = -1
+			   THEN null
+			   ELSE ((atttypmod - 4) >> 16) & 65535
+			   END
+		 WHEN 700 /*float4*/ THEN 24 /*FLT_MANT_DIG*/
+		 WHEN 701 /*float8*/ THEN 53 /*DBL_MANT_DIG*/
+		 ELSE null
+	  END   AS numeric_precision,
+	  CASE 
+	    WHEN atttypid IN (21, 23, 20) THEN 0
+	    WHEN atttypid IN (1700) THEN            
+		CASE 
+		    WHEN atttypmod = -1 THEN null       
+		    ELSE (atttypmod - 4) & 65535
+		END
+	       ELSE null
+	  END AS numeric_scale,
+	CAST(
+             information_schema._pg_char_max_length(information_schema._pg_truetypid(a, t), information_schema._pg_truetypmod(a, t))
+             AS numeric
+	) AS size,
+	a.attnum = any (ct.conkey) as is_pkey			
+FROM
+	pg_class c
+	LEFT JOIN pg_attribute a ON a.attrelid = c.oid
+	LEFT JOIN pg_attrdef ad ON a.attrelid = ad.adrelid AND a.attnum = ad.adnum
+	LEFT JOIN pg_type t ON a.atttypid = t.oid
+	LEFT JOIN pg_namespace d ON d.oid = c.relnamespace
+	LEFT join pg_constraint ct on ct.conrelid=c.oid and ct.contype='p'
+WHERE
+	a.attnum > 0
+	and c.relname = {$tableName}
+	and d.nspname = {$schemaName}
+	and current_database() = {$dbname}
+ORDER BY
+	a.attnum;
+SQL;
+
+		try {
+			$columns = $this->db->createCommand($sql)->queryAll();
+		} catch (\Exception $e) {
+			return false;
+		}
+		foreach ($columns as $column) {
+			$column = $this->loadColumnSchema($column);
+			$table->columns[$column->name] = $column;
+			if ($column->isPrimaryKey === true) {
+				$table->primaryKey[] = $column->name;
+				if ($table->sequenceName === null && preg_match("/nextval\('\w+'(::regclass)?\)/", $column->defaultValue) === 1) {
+					$table->sequenceName = preg_replace(array('/nextval/', '/::/', '/regclass/', '/\'\)/', '/\(\'/'), '', $column->defaultValue);
+				}
+			}
+		}
+		return true;
+	}
+
+	/**
+	 * Loads the column information into a [[ColumnSchema]] object.
+	 * @param array $info column information
+	 * @return ColumnSchema the column schema object
+	 */
+	protected function loadColumnSchema($info) {
+		$column = new ColumnSchema();
+		$column->allowNull = $info['is_nullable'];
+		$column->autoIncrement = $info['is_autoinc'];
+		$column->comment = $info['column_comment'];
+		$column->dbType = $info['data_type'];
+		$column->defaultValue = $info['column_default'];
+		$column->enumValues = explode(',', str_replace(array("''"), array("'"), $info['enum_values']));
+		$column->unsigned = false; // has no meanining in PG
+		$column->isPrimaryKey = $info['is_pkey'];
+		$column->name = $info['column_name'];
+		$column->precision = $info['numeric_precision'];
+		$column->scale = $info['numeric_scale'];
+		$column->size = $info['size'];
+
+		if (isset($this->typeMap[$column->dbType])) {
+			$column->type = $this->typeMap[$column->dbType];
+		} else {
+			$column->type = self::TYPE_STRING;
+		}
+		$column->phpType = $this->getColumnPhpType($column);
+		return $column;
+	}
+
+}
\ No newline at end of file
diff --git a/tests/unit/data/config.php b/tests/unit/data/config.php
index a2cc445..1b40513 100644
--- a/tests/unit/data/config.php
+++ b/tests/unit/data/config.php
@@ -18,5 +18,14 @@ return array(
 			'password' => '',
 			'fixture' => __DIR__ . '/mssql.sql',
 		),
+		'pgsql' => array(
+			'dsn' => 'pgsql:host=localhost;dbname=yiitest;port=5432;',
+			'username' => 'postgres',
+			'password' => 'postgres',
+			'attributes'  => array(
+				'search_path' => 'master,hello'
+			),
+			'fixture' => __DIR__ . '/postgres.sql',
+		)
     )
 );
diff --git a/tests/unit/data/postgres.sql b/tests/unit/data/postgres.sql
index e46b284..52fad0f 100644
--- a/tests/unit/data/postgres.sql
+++ b/tests/unit/data/postgres.sql
@@ -1,165 +1,87 @@
 /**
  * This is the database schema for testing PostgreSQL support of yii Active Record.
- * To test this feature, you need to create a database named 'yii' on 'localhost'
- * and create an account 'test/test' which owns this test database.
+ * To test this feature, you need to create a database named 'yiitest' on 'localhost'
+ * and create an account 'postgres/postgres' which owns this test database.
  */
-CREATE SCHEMA test;
 
-CREATE TABLE test.users
-(
-	id SERIAL NOT NULL PRIMARY KEY,
-	username VARCHAR(128) NOT NULL,
-	password VARCHAR(128) NOT NULL,
-	email VARCHAR(128) NOT NULL
+DROP TABLE IF EXISTS tbl_order_item CASCADE;
+DROP TABLE IF EXISTS tbl_item CASCADE;
+DROP TABLE IF EXISTS tbl_order CASCADE;
+DROP TABLE IF EXISTS tbl_category CASCADE;
+DROP TABLE IF EXISTS tbl_customer CASCADE;
+DROP TABLE IF EXISTS tbl_type CASCADE;
+
+CREATE TABLE tbl_customer (
+  id serial not null primary key,
+  email varchar(128) NOT NULL,
+  name varchar(128) NOT NULL,
+  address text,
+  status integer DEFAULT 0
 );
 
-INSERT INTO test.users (username, password, email) VALUES ('user1','pass1','email1');
-INSERT INTO test.users (username, password, email) VALUES ('user2','pass2','email2');
-INSERT INTO test.users (username, password, email) VALUES ('user3','pass3','email3');
+comment on column public.tbl_customer.email is 'someone@example.com';
 
-CREATE TABLE test.user_friends
-(
-	id INTEGER NOT NULL,
-	friend INTEGER NOT NULL,
-	PRIMARY KEY (id, friend),
-	CONSTRAINT FK_user_id FOREIGN KEY (id)
-		REFERENCES test.users (id) ON DELETE CASCADE ON UPDATE RESTRICT,
-	CONSTRAINT FK_friend_id FOREIGN KEY (friend)
-		REFERENCES test.users (id) ON DELETE CASCADE ON UPDATE RESTRICT
+CREATE TABLE tbl_category (
+  id serial not null primary key,
+  name varchar(128) NOT NULL
 );
 
-INSERT INTO test.user_friends VALUES (1,2);
-INSERT INTO test.user_friends VALUES (1,3);
-INSERT INTO test.user_friends VALUES (2,3);
-
-CREATE TABLE test.profiles
-(
-	id SERIAL NOT NULL PRIMARY KEY,
-	first_name VARCHAR(128) NOT NULL,
-	last_name VARCHAR(128) NOT NULL,
-	user_id INTEGER NOT NULL,
-	CONSTRAINT FK_profile_user FOREIGN KEY (user_id)
-		REFERENCES test.users (id) ON DELETE CASCADE ON UPDATE RESTRICT
-);
-
-INSERT INTO test.profiles (first_name, last_name, user_id) VALUES ('first 1','last 1',1);
-INSERT INTO test.profiles (first_name, last_name, user_id) VALUES ('first 2','last 2',2);
-
-CREATE TABLE test.posts
-(
-	id SERIAL NOT NULL PRIMARY KEY,
-	title VARCHAR(128) NOT NULL,
-	create_time TIMESTAMP NOT NULL,
-	author_id INTEGER NOT NULL,
-	content TEXT,
-	CONSTRAINT FK_post_author FOREIGN KEY (author_id)
-		REFERENCES test.users (id) ON DELETE CASCADE ON UPDATE RESTRICT
-);
-
-INSERT INTO test.posts (title, create_time, author_id, content) VALUES ('post 1',TIMESTAMP '2004-10-19 10:23:54',1,'content 1');
-INSERT INTO test.posts (title, create_time, author_id, content) VALUES ('post 2',TIMESTAMP '2004-10-19 10:23:54',2,'content 2');
-INSERT INTO test.posts (title, create_time, author_id, content) VALUES ('post 3',TIMESTAMP '2004-10-19 10:23:54',2,'content 3');
-INSERT INTO test.posts (title, create_time, author_id, content) VALUES ('post 4',TIMESTAMP '2004-10-19 10:23:54',2,'content 4');
-INSERT INTO test.posts (title, create_time, author_id, content) VALUES ('post 5',TIMESTAMP '2004-10-19 10:23:54',3,'content 5');
-
-CREATE TABLE test.comments
-(
-	id SERIAL NOT NULL PRIMARY KEY,
-	content TEXT NOT NULL,
-	post_id INTEGER NOT NULL,
-	author_id INTEGER NOT NULL,
-	CONSTRAINT FK_post_comment FOREIGN KEY (post_id)
-		REFERENCES test.posts (id) ON DELETE CASCADE ON UPDATE RESTRICT,
-	CONSTRAINT FK_user_comment FOREIGN KEY (author_id)
-		REFERENCES test.users (id) ON DELETE CASCADE ON UPDATE RESTRICT
+CREATE TABLE tbl_item (
+  id serial not null primary key,
+  name varchar(128) NOT NULL,
+  category_id integer NOT NULL references tbl_category(id) on UPDATE CASCADE on DELETE CASCADE
 );
 
-INSERT INTO test.comments (content, post_id, author_id) VALUES ('comment 1',1, 2);
-INSERT INTO test.comments (content, post_id, author_id) VALUES ('comment 2',1, 2);
-INSERT INTO test.comments (content, post_id, author_id) VALUES ('comment 3',1, 2);
-INSERT INTO test.comments (content, post_id, author_id) VALUES ('comment 4',2, 2);
-INSERT INTO test.comments (content, post_id, author_id) VALUES ('comment 5',2, 2);
-INSERT INTO test.comments (content, post_id, author_id) VALUES ('comment 6',3, 2);
-INSERT INTO test.comments (content, post_id, author_id) VALUES ('comment 7',3, 2);
-INSERT INTO test.comments (content, post_id, author_id) VALUES ('comment 8',3, 2);
-INSERT INTO test.comments (content, post_id, author_id) VALUES ('comment 9',3, 2);
-INSERT INTO test.comments (content, post_id, author_id) VALUES ('comment 10',5, 3);
-
-CREATE TABLE test.categories
-(
-	id SERIAL NOT NULL PRIMARY KEY,
-	name VARCHAR(128) NOT NULL,
-	parent_id INTEGER,
-	CONSTRAINT FK_category_category FOREIGN KEY (parent_id)
-		REFERENCES test.categories (id) ON DELETE CASCADE ON UPDATE RESTRICT
+CREATE TABLE tbl_order (
+  id serial not null primary key,
+  customer_id integer NOT NULL references tbl_customer(id) on UPDATE CASCADE on DELETE CASCADE,
+  create_time integer NOT NULL,
+  total decimal(10,0) NOT NULL
 );
 
-INSERT INTO test.categories (name, parent_id) VALUES ('cat 1',NULL);
-INSERT INTO test.categories (name, parent_id) VALUES ('cat 2',NULL);
-INSERT INTO test.categories (name, parent_id) VALUES ('cat 3',NULL);
-INSERT INTO test.categories (name, parent_id) VALUES ('cat 4',1);
-INSERT INTO test.categories (name, parent_id) VALUES ('cat 5',1);
-INSERT INTO test.categories (name, parent_id) VALUES ('cat 6',5);
-INSERT INTO test.categories (name, parent_id) VALUES ('cat 7',5);
-
-CREATE TABLE test.post_category
-(
-	category_id INTEGER NOT NULL,
-	post_id INTEGER NOT NULL,
-	PRIMARY KEY (category_id, post_id),
-	CONSTRAINT FK_post_category_post FOREIGN KEY (post_id)
-		REFERENCES test.posts (id) ON DELETE CASCADE ON UPDATE RESTRICT,
-	CONSTRAINT FK_post_category_category FOREIGN KEY (category_id)
-		REFERENCES test.categories (id) ON DELETE CASCADE ON UPDATE RESTRICT
+CREATE TABLE tbl_order_item (
+  order_id integer NOT NULL references tbl_order(id) on UPDATE CASCADE on DELETE CASCADE,
+  item_id integer NOT NULL references tbl_item(id) on UPDATE CASCADE on DELETE CASCADE,
+  quantity integer NOT NULL,
+  subtotal decimal(10,0) NOT NULL,
+  PRIMARY KEY (order_id,item_id)
 );
 
-INSERT INTO test.post_category (category_id, post_id) VALUES (1,1);
-INSERT INTO test.post_category (category_id, post_id) VALUES (2,1);
-INSERT INTO test.post_category (category_id, post_id) VALUES (3,1);
-INSERT INTO test.post_category (category_id, post_id) VALUES (4,2);
-INSERT INTO test.post_category (category_id, post_id) VALUES (1,2);
-INSERT INTO test.post_category (category_id, post_id) VALUES (1,3);
-
-CREATE TABLE test.orders
-(
-	key1 INTEGER NOT NULL,
-	key2 INTEGER NOT NULL,
-	name VARCHAR(128),
-	PRIMARY KEY (key1, key2)
+CREATE TABLE tbl_type (
+  int_col integer NOT NULL,
+  int_col2 integer DEFAULT '1',
+  char_col char(100) NOT NULL,
+  char_col2 varchar(100) DEFAULT 'something',
+  char_col3 text,
+  float_col double precision NOT NULL,
+  float_col2 double precision DEFAULT '1.23',
+  blob_col bytea,
+  numeric_col decimal(5,2) DEFAULT '33.22',
+  time timestamp NOT NULL DEFAULT '2002-01-01 00:00:00',
+  bool_col smallint NOT NULL,
+  bool_col2 smallint DEFAULT '1'
 );
 
-INSERT INTO test.orders (key1,key2,name) VALUES (1,2,'order 12');
-INSERT INTO test.orders (key1,key2,name) VALUES (1,3,'order 13');
-INSERT INTO test.orders (key1,key2,name) VALUES (2,1,'order 21');
-INSERT INTO test.orders (key1,key2,name) VALUES (2,2,'order 22');
-
-CREATE TABLE test.items
-(
-	id SERIAL NOT NULL PRIMARY KEY,
-	name VARCHAR(128),
-	col1 INTEGER NOT NULL,
-	col2 INTEGER NOT NULL,
-	CONSTRAINT FK_order_item FOREIGN KEY (col1,col2)
-		REFERENCES test.orders (key1,key2) ON DELETE CASCADE ON UPDATE RESTRICT
-);
-
-INSERT INTO test.items (name,col1,col2) VALUES ('item 1',1,2);
-INSERT INTO test.items (name,col1,col2) VALUES ('item 2',1,2);
-INSERT INTO test.items (name,col1,col2) VALUES ('item 3',1,3);
-INSERT INTO test.items (name,col1,col2) VALUES ('item 4',2,2);
-INSERT INTO test.items (name,col1,col2) VALUES ('item 5',2,2);
-
-CREATE TABLE public.yii_types
-(
-	int_col INT NOT NULL,
-	int_col2 INTEGER DEFAULT 1,
-	char_col CHAR(100) NOT NULL,
-	char_col2 VARCHAR(100) DEFAULT 'something',
-	char_col3 TEXT,
-	numeric_col NUMERIC(4,3) NOT NULL,
-	real_col REAL DEFAULT 1.23,
-	blob_col BYTEA,
-	time TIMESTAMP,
-	bool_col BOOL NOT NULL,
-	bool_col2 BOOLEAN DEFAULT TRUE
-);
\ No newline at end of file
+INSERT INTO tbl_customer (email, name, address, status) VALUES ('user1@example.com', 'user1', 'address1', 1);
+INSERT INTO tbl_customer (email, name, address, status) VALUES ('user2@example.com', 'user2', 'address2', 1);
+INSERT INTO tbl_customer (email, name, address, status) VALUES ('user3@example.com', 'user3', 'address3', 2);
+
+INSERT INTO tbl_category (name) VALUES ('Books');
+INSERT INTO tbl_category (name) VALUES ('Movies');
+
+INSERT INTO tbl_item (name, category_id) VALUES ('Agile Web Application Development with Yii1.1 and PHP5', 1);
+INSERT INTO tbl_item (name, category_id) VALUES ('Yii 1.1 Application Development Cookbook', 1);
+INSERT INTO tbl_item (name, category_id) VALUES ('Ice Age', 2);
+INSERT INTO tbl_item (name, category_id) VALUES ('Toy Story', 2);
+INSERT INTO tbl_item (name, category_id) VALUES ('Cars', 2);
+
+INSERT INTO tbl_order (customer_id, create_time, total) VALUES (1, 1325282384, 110.0);
+INSERT INTO tbl_order (customer_id, create_time, total) VALUES (2, 1325334482, 33.0);
+INSERT INTO tbl_order (customer_id, create_time, total) VALUES (2, 1325502201, 40.0);
+
+INSERT INTO tbl_order_item (order_id, item_id, quantity, subtotal) VALUES (1, 1, 1, 30.0);
+INSERT INTO tbl_order_item (order_id, item_id, quantity, subtotal) VALUES (1, 2, 2, 40.0);
+INSERT INTO tbl_order_item (order_id, item_id, quantity, subtotal) VALUES (2, 4, 1, 10.0);
+INSERT INTO tbl_order_item (order_id, item_id, quantity, subtotal) VALUES (2, 5, 1, 15.0);
+INSERT INTO tbl_order_item (order_id, item_id, quantity, subtotal) VALUES (2, 3, 1, 8.0);
+INSERT INTO tbl_order_item (order_id, item_id, quantity, subtotal) VALUES (3, 2, 1, 40.0);
diff --git a/tests/unit/framework/db/DatabaseTestCase.php b/tests/unit/framework/db/DatabaseTestCase.php
index 429d961..7ce9bec 100644
--- a/tests/unit/framework/db/DatabaseTestCase.php
+++ b/tests/unit/framework/db/DatabaseTestCase.php
@@ -37,6 +37,9 @@ abstract class DatabaseTestCase extends TestCase
 			$db->username = $this->database['username'];
 			$db->password = $this->database['password'];
 		}
+		if (isset($this->database['attributes'])) {
+			$db->attributes = $this->database['attributes'];
+		}
 		if ($open) {
 			$db->open();
 			$lines = explode(';', file_get_contents($this->database['fixture']));
diff --git a/tests/unit/framework/db/pgsql/PostgreSQLActiveRecordTest.php b/tests/unit/framework/db/pgsql/PostgreSQLActiveRecordTest.php
new file mode 100644
index 0000000..18bfbd8
--- /dev/null
+++ b/tests/unit/framework/db/pgsql/PostgreSQLActiveRecordTest.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace yiiunit\framework\db\pgsql;
+
+use yiiunit\framework\db\ActiveRecordTest;
+
+class PostgreSQLActiveRecordTest extends ActiveRecordTest
+{
+    protected function setUp()
+    {
+        $this->driverName = 'pgsql';
+        parent::setUp();
+    }
+}
diff --git a/tests/unit/framework/db/pgsql/PostgreSQLConnectionTest.php b/tests/unit/framework/db/pgsql/PostgreSQLConnectionTest.php
new file mode 100644
index 0000000..678b197
--- /dev/null
+++ b/tests/unit/framework/db/pgsql/PostgreSQLConnectionTest.php
@@ -0,0 +1,51 @@
+<?php
+
+namespace yiiunit\framework\db\pgsql;
+
+use yiiunit\framework\db\ConnectionTest;
+
+class PostgreSQLConnectionTest extends ConnectionTest {
+
+	public function setUp() {
+		$this->driverName = 'pgsql';
+		parent::setUp();
+	}
+
+	public function testConnection() {
+		$connection = $this->getConnection(true);
+	}
+
+	function testQuoteValue() {
+		$connection = $this->getConnection(false);
+		$this->assertEquals(123, $connection->quoteValue(123));
+		$this->assertEquals("'string'", $connection->quoteValue('string'));
+		$this->assertEquals("'It''s interesting'", $connection->quoteValue("It's interesting"));
+	}
+	
+	function testQuoteTableName()
+	{
+		$connection = $this->getConnection(false);
+		$this->assertEquals('"table"', $connection->quoteTableName('table'));
+		$this->assertEquals('"table"', $connection->quoteTableName('"table"'));
+		$this->assertEquals('"schema"."table"', $connection->quoteTableName('schema.table'));
+		$this->assertEquals('"schema"."table"', $connection->quoteTableName('schema."table"'));
+		$this->assertEquals('"schema"."table"', $connection->quoteTableName('"schema"."table"'));
+		$this->assertEquals('{{table}}', $connection->quoteTableName('{{table}}'));
+		$this->assertEquals('(table)', $connection->quoteTableName('(table)'));
+	}
+	
+	function testQuoteColumnName()
+	{
+		$connection = $this->getConnection(false);
+		$this->assertEquals('"column"', $connection->quoteColumnName('column'));
+		$this->assertEquals('"column"', $connection->quoteColumnName('"column"'));
+		$this->assertEquals('"table"."column"', $connection->quoteColumnName('table.column'));
+		$this->assertEquals('"table"."column"', $connection->quoteColumnName('table."column"'));
+		$this->assertEquals('"table"."column"', $connection->quoteColumnName('"table"."column"'));
+		$this->assertEquals('[[column]]', $connection->quoteColumnName('[[column]]'));
+		$this->assertEquals('{{column}}', $connection->quoteColumnName('{{column}}'));
+		$this->assertEquals('(column)', $connection->quoteColumnName('(column)'));
+	}
+	
+	
+}