diff --git a/system/database/DB_query_builder.php b/system/database/DB_query_builder.php
index 4631b1b..dad1df1 100644
--- a/system/database/DB_query_builder.php
+++ b/system/database/DB_query_builder.php
@@ -1061,6 +1061,23 @@
 	// --------------------------------------------------------------------
 
 	/**
+	 * Limit string
+	 *
+	 * Generates a platform-specific LIMIT clause
+	 *
+	 * @param	string	the sql query string
+	 * @param	int	the number of rows to limit the query to
+	 * @param	int	the offset value
+	 * @return	string
+	 */
+	protected function _limit($sql, $limit, $offset)
+	{
+		return $sql.' LIMIT '.($offset ? $offset.', ' : '').$limit;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
 	 * The "set" function.
 	 *
 	 * Allows key/value pairs to be set for inserting or updating
diff --git a/system/database/drivers/cubrid/cubrid_driver.php b/system/database/drivers/cubrid/cubrid_driver.php
index 6b67b75..7496ee4 100644
--- a/system/database/drivers/cubrid/cubrid_driver.php
+++ b/system/database/drivers/cubrid/cubrid_driver.php
@@ -437,23 +437,6 @@
 	// --------------------------------------------------------------------
 
 	/**
-	 * Limit string
-	 *
-	 * Generates a platform-specific LIMIT clause
-	 *
-	 * @param	string	the sql query string
-	 * @param	int	the number of rows to limit the query to
-	 * @param	int	the offset value
-	 * @return	string
-	 */
-	protected function _limit($sql, $limit, $offset)
-	{
-		return $sql.'LIMIT '.($offset == 0 ? '' : $offset.', ').$limit;
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
 	 * Close DB Connection
 	 *
 	 * @return	void
diff --git a/system/database/drivers/interbase/interbase_driver.php b/system/database/drivers/interbase/interbase_driver.php
index 5a03607..512ee62 100644
--- a/system/database/drivers/interbase/interbase_driver.php
+++ b/system/database/drivers/interbase/interbase_driver.php
@@ -421,12 +421,12 @@
 		if (stripos($this->version(), 'firebird') !== FALSE)
 		{
 			$select = 'FIRST '. (int) $limit
-				.($offset > 0 ? ' SKIP '. (int) $offset : '');
+				.($offset ? ' SKIP '. (int) $offset : '');
 		}
 		else
 		{
 			$select = 'ROWS '
-				.($offset > 0 ? (int) $offset.' TO '.($limit + $offset) : (int) $limit);
+				.($offset ? (int) $offset.' TO '.($limit + $offset) : (int) $limit);
 		}
 
 		return preg_replace('`SELECT`i', 'SELECT '.$select, $sql);
diff --git a/system/database/drivers/mysql/mysql_driver.php b/system/database/drivers/mysql/mysql_driver.php
index 4e93e61..d11f015 100644
--- a/system/database/drivers/mysql/mysql_driver.php
+++ b/system/database/drivers/mysql/mysql_driver.php
@@ -461,23 +461,6 @@
 	// --------------------------------------------------------------------
 
 	/**
-	 * Limit string
-	 *
-	 * Generates a platform-specific LIMIT clause
-	 *
-	 * @param	string	the sql query string
-	 * @param	int	the number of rows to limit the query to
-	 * @param	int	the offset value
-	 * @return	string
-	 */
-	protected function _limit($sql, $limit, $offset)
-	{
-		return $sql.' LIMIT '.($offset == 0 ? '' : $offset.', ').$limit;
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
 	 * Close DB Connection
 	 *
 	 * @return	void
diff --git a/system/database/drivers/mysqli/mysqli_driver.php b/system/database/drivers/mysqli/mysqli_driver.php
index 1b30b6c..d1581bf 100644
--- a/system/database/drivers/mysqli/mysqli_driver.php
+++ b/system/database/drivers/mysqli/mysqli_driver.php
@@ -455,24 +455,6 @@
 	// --------------------------------------------------------------------
 
 	/**
-	 * Limit string
-	 *
-	 * Generates a platform-specific LIMIT clause
-	 *
-	 * @param	string	the sql query string
-	 * @param	int	the number of rows to limit the query to
-	 * @param	int	the offset value
-	 * @return	string
-	 */
-	protected function _limit($sql, $limit, $offset)
-	{
-		return $sql.' LIMIT '.$limit
-			.($offset > 0 ? ' OFFSET '.$offset : '');
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
 	 * Close DB Connection
 	 *
 	 * @return	void
diff --git a/system/database/drivers/oci8/oci8_driver.php b/system/database/drivers/oci8/oci8_driver.php
index e780916..1f571e5 100644
--- a/system/database/drivers/oci8/oci8_driver.php
+++ b/system/database/drivers/oci8/oci8_driver.php
@@ -634,7 +634,7 @@
 	{
 		$this->limit_used = TRUE;
 		return 'SELECT * FROM (SELECT inner_query.*, rownum rnum FROM ('.$sql.') inner_query WHERE rownum < '.($offset + $limit).')'
-			.($offset !== 0 ? ' WHERE rnum >= '.$offset : '');
+			.($offset ? ' WHERE rnum >= '.$offset : '');
 	}
 
 	// --------------------------------------------------------------------
diff --git a/system/database/drivers/odbc/odbc_driver.php b/system/database/drivers/odbc/odbc_driver.php
index 5ebba7a..bd57592 100644
--- a/system/database/drivers/odbc/odbc_driver.php
+++ b/system/database/drivers/odbc/odbc_driver.php
@@ -331,23 +331,6 @@
 	// --------------------------------------------------------------------
 
 	/**
-	 * Limit string
-	 *
-	 * Generates a platform-specific LIMIT clause
-	 *
-	 * @param	string	the sql query string
-	 * @param	int	the number of rows to limit the query to
-	 * @param	int	the offset value
-	 * @return	string
-	 */
-	protected function _limit($sql, $limit, $offset)
-	{
-		return $sql.' LIMIT '.($offset == 0 ? '' : $offset.', ').$limit;
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
 	 * Close DB Connection
 	 *
 	 * @return	void
diff --git a/system/database/drivers/pdo/pdo_driver.php b/system/database/drivers/pdo/pdo_driver.php
index e25013a..a3ad469 100644
--- a/system/database/drivers/pdo/pdo_driver.php
+++ b/system/database/drivers/pdo/pdo_driver.php
@@ -599,19 +599,12 @@
 	 */
 	protected function _limit($sql, $limit, $offset)
 	{
-		if ($this->pdodriver === 'cubrid' OR $this->pdodriver === 'sqlite')
+		if ($this->pdodriver === 'pgsql')
 		{
-			$offset = ($offset == 0) ? '' : $offset.', ';
-
-			return $sql.'LIMIT '.$offset.$limit;
+			return $sql.' LIMIT '.$limit.($offset ? ' OFFSET '.$offset : '');
 		}
-		else
-		{
-			$sql .= 'LIMIT '.$limit;
-			$sql .= ($offset > 0) ? ' OFFSET '.$offset : '';
 
-			return $sql;
-		}
+		return $sql.' LIMIT '.($offset ? $offset.', ' : '').$limit;
 	}
 
 }
diff --git a/system/database/drivers/postgre/postgre_driver.php b/system/database/drivers/postgre/postgre_driver.php
index b9f6026..fd25303 100644
--- a/system/database/drivers/postgre/postgre_driver.php
+++ b/system/database/drivers/postgre/postgre_driver.php
@@ -582,7 +582,7 @@
 	 */
 	protected function _limit($sql, $limit, $offset)
 	{
-		return $sql.' LIMIT '.$limit.($offset == 0 ? '' : ' OFFSET '.$offset);
+		return $sql.' LIMIT '.$limit.($offset ? ' OFFSET '.$offset : '');
 	}
 
 	// --------------------------------------------------------------------
diff --git a/system/database/drivers/sqlite/sqlite_driver.php b/system/database/drivers/sqlite/sqlite_driver.php
index 3305f60..87be7a5 100644
--- a/system/database/drivers/sqlite/sqlite_driver.php
+++ b/system/database/drivers/sqlite/sqlite_driver.php
@@ -360,23 +360,6 @@
 	// --------------------------------------------------------------------
 
 	/**
-	 * Limit string
-	 *
-	 * Generates a platform-specific LIMIT clause
-	 *
-	 * @param	string	the sql query string
-	 * @param	int	the number of rows to limit the query to
-	 * @param	int	the offset value
-	 * @return	string
-	 */
-	protected function _limit($sql, $limit, $offset)
-	{
-		return $sql.'LIMIT '.($offset == 0 ? '' : $offset.', ').$limit;
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
 	 * Close DB Connection
 	 *
 	 * @return	void
diff --git a/system/database/drivers/sqlite3/sqlite3_driver.php b/system/database/drivers/sqlite3/sqlite3_driver.php
index bed6189..1c6533f 100644
--- a/system/database/drivers/sqlite3/sqlite3_driver.php
+++ b/system/database/drivers/sqlite3/sqlite3_driver.php
@@ -353,23 +353,6 @@
 	// --------------------------------------------------------------------
 
 	/**
-	 * Limit string
-	 *
-	 * Generates a platform-specific LIMIT clause
-	 *
-	 * @param	string	the sql query string
-	 * @param	int	the number of rows to limit the query to
-	 * @param	int	the offset value
-	 * @return	string
-	 */
-	protected function _limit($sql, $limit, $offset)
-	{
-		return $sql.' LIMIT '.($offset ? $offset.',' : '').$limit;
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
 	 * Close DB Connection
 	 *
 	 * @return	void