diff --git a/dibi/dibi.php b/dibi/dibi.php
index 7f568627..c5559f2a 100644
--- a/dibi/dibi.php
+++ b/dibi/dibi.php
@@ -14,11 +14,11 @@
  * @license    GNU GENERAL PUBLIC LICENSE v2
  * @package    dibi
  * @category   Database
- * @version    0.7e $Revision$ $Date$
+ * @version    0.7f $Revision$ $Date$
  */
 
 
-define('DIBI', 'Version 0.7e $Revision$');
+define('DIBI', 'Version 0.7f $Revision$');
 
 
 if (version_compare(PHP_VERSION , '5.0.3', '<'))
@@ -219,9 +219,6 @@ class dibi
 
 
 
-
-
-
     /**
      * Generates and executes SQL query
      *
@@ -231,77 +228,12 @@ class dibi
      */
     static public function query($args)
     {
-        $conn = self::getConnection();
-
-        // receive arguments
-        if (!is_array($args))
-            $args = func_get_args();
-
-        // and generate SQL
-        $trans = new DibiTranslator($conn, self::$substs);
-        if (!$trans->translate($args)) {
-            if (self::$logFile)  // log to file
-                self::log(
-                    "ERROR: SQL generate error"
-                    . "\n-- SQL: " . $trans->sql
-                    . ";\n-- " . date('Y-m-d H:i:s ')
-                );
-
-            if (dibi::$throwExceptions)
-                throw new DibiException('SQL generate error', NULL, $trans->sql);
-            else {
-                trigger_error("dibi: SQL generate error: $trans->sql", E_USER_WARNING);
-                return FALSE;
-            }
-        }
-
-        self::$sql = $trans->sql;
-
-        // execute SQL
-        $timer = -microtime(true);
-        $res = $conn->query(self::$sql);
-
-        if ($res === FALSE) { // query error
-            if (self::$logFile) { // log to file
-                $info = $conn->errorInfo();
-                if ($info['code']) $info['message'] = "[$info[code]] $info[message]";
-                self::log(
-                    "ERROR: $info[message]"
-                    . "\n-- SQL: " . self::$sql
-                    . ";\n-- " . date('Y-m-d H:i:s ')
-                );
-            }
-
-            if (dibi::$throwExceptions) {
-                $info = $conn->errorInfo();
-                throw new DibiException('Query error', $info, self::$sql);
-            } else {
-                $info = $conn->errorInfo();
-                if ($info['code']) $info['message'] = "[$info[code]] $info[message]";
-                trigger_error("dibi: $info[message]", E_USER_WARNING);
-                return FALSE;
-            }
-        }
-
-        if (self::$logFile && self::$logAll) { // log success
-            $timer += microtime(true);
-            $msg = $res instanceof DibiResult ? 'object('.get_class($res).') rows: '.$res->rowCount() : 'OK';
-
-            self::log(
-                "OK: " . self::$sql
-                . ";\n-- result: $msg"
-                . "\n-- takes: " . sprintf('%0.3f', $timer * 1000) . ' ms'
-                . "\n-- " . date('Y-m-d H:i:s ')
-            );
-        }
-
-        return $res;
+        $args = func_get_args();
+        return self::getConnection()->query($args);
     }
 
 
 
-
-
     /**
      * Generates and prints SQL query
      *
@@ -315,13 +247,18 @@ class dibi
             $args = func_get_args();
 
         // and generate SQL
-        $trans = new DibiTranslator(self::getConnection(), self::$substs);
-        $ok = $trans->translate($args);
-        if (!$ok) echo 'ERROR: ';
+        $trans = new DibiTranslator(self::getConnection());
+        try {
+            $sql = $trans->translate($args);
+        } catch (DibiException $e) {
+            return FALSE;
+        }
 
-        self::dump($trans->sql);
+        if ($sql === FALSE) return FALSE;
 
-        return $ok;
+        self::dump($sql);
+
+        return TRUE;
     }
 
 
@@ -366,6 +303,7 @@ class dibi
     }
 
 
+
     /**
      * Prints out a syntax highlighted version of the SQL command
      *
@@ -449,6 +387,18 @@ class dibi
     }
 
 
+    /**
+     * Process substitutions in string
+     * @param string
+     * @return string
+     */
+    static public function substitute($s)
+    {
+        if (strpos($s, ':') === FALSE) return $s;
+        return strtr($s, self::$substs);
+    }
+
+
     /**
      * Error logging
      * EXPERIMENTAL
diff --git a/dibi/drivers/mysql.php b/dibi/drivers/mysql.php
index 02150c8a..ab470a43 100644
--- a/dibi/drivers/mysql.php
+++ b/dibi/drivers/mysql.php
@@ -24,7 +24,8 @@ if (!defined('DIBI')) die();
  * The dibi driver for MySQL database
  *
  */
-class DibiMySqlDriver extends DibiDriver {
+class DibiMySqlDriver extends DibiDriver
+{
     private
         $conn,
         $insertId = FALSE,
@@ -105,7 +106,7 @@ class DibiMySqlDriver extends DibiDriver {
 
 
 
-    public function query($sql)
+    public function nativeQuery($sql)
     {
         $this->insertId = $this->affectedRows = FALSE;
         $res = @mysql_query($sql, $this->conn);
@@ -216,9 +217,7 @@ class DibiMySqlDriver extends DibiDriver {
 
 class DibiMySqlResult extends DibiResult
 {
-    private
-        $resource,
-        $meta;
+    private $resource;
 
 
     public function __construct($resource)
@@ -251,37 +250,8 @@ class DibiMySqlResult extends DibiResult
     }
 
 
-    public function getFields()
-    {
-        // cache
-        if ($this->meta === NULL)
-            $this->createMeta();
-
-        return array_keys($this->meta);
-    }
-
-
-    protected function detectTypes()
-    {
-        if ($this->meta === NULL)
-            $this->createMeta();
-    }
-
-
     /** this is experimental */
-    public function getMetaData($field)
-    {
-        // cache
-        if ($this->meta === NULL)
-            $this->createMeta();
-
-        return isset($this->meta[$field]) ? $this->meta[$field] : FALSE;
-    }
-
-
-
-    /** this is experimental */
-    private function createMeta()
+    protected function buildMeta()
     {
         static $types = array(
             'ENUM'      => dibi::FIELD_TEXT, // eventually dibi::FIELD_INTEGER
diff --git a/dibi/drivers/mysqli.php b/dibi/drivers/mysqli.php
index e1fef3c8..5f29fff9 100644
--- a/dibi/drivers/mysqli.php
+++ b/dibi/drivers/mysqli.php
@@ -24,7 +24,8 @@ if (!defined('DIBI')) die();
  * The dibi driver for MySQLi database
  *
  */
-class DibiMySqliDriver extends DibiDriver {
+class DibiMySqliDriver extends DibiDriver
+{
     private
         $conn,
         $insertId = FALSE,
@@ -73,7 +74,7 @@ class DibiMySqliDriver extends DibiDriver {
 
 
 
-    public function query($sql)
+    public function nativeQuery($sql)
     {
         $this->insertId = $this->affectedRows = FALSE;
         $res = @mysqli_query($this->conn, $sql);
@@ -184,9 +185,7 @@ class DibiMySqliDriver extends DibiDriver {
 
 class DibiMySqliResult extends DibiResult
 {
-    private
-        $resource,
-        $meta;
+    private $resource;
 
 
     public function __construct($resource)
@@ -219,36 +218,8 @@ class DibiMySqliResult extends DibiResult
     }
 
 
-    public function getFields()
-    {
-        // cache
-        if ($this->meta === NULL)
-            $this->createMeta();
-
-        return array_keys($this->meta);
-    }
-
-
-    protected function detectTypes()
-    {
-        if ($this->meta === NULL)
-            $this->createMeta();
-    }
-
     /** this is experimental */
-    public function getMetaData($field)
-    {
-        // cache
-        if ($this->meta === NULL)
-            $this->createMeta();
-
-        return isset($this->meta[$field]) ? $this->meta[$field] : FALSE;
-    }
-
-
-
-    /** this is experimental */
-    private function createMeta()
+    protected function buildMeta()
     {
         static $types = array(
             MYSQLI_TYPE_FLOAT     => dibi::FIELD_FLOAT,
diff --git a/dibi/drivers/odbc.php b/dibi/drivers/odbc.php
index 43a84e51..884c6988 100644
--- a/dibi/drivers/odbc.php
+++ b/dibi/drivers/odbc.php
@@ -24,7 +24,8 @@ if (!defined('DIBI')) die();
  * The dibi driver interacting with databases via ODBC connections
  *
  */
-class DibiOdbcDriver extends DibiDriver {
+class DibiOdbcDriver extends DibiDriver
+{
     private
         $conn,
         $affectedRows = FALSE;
@@ -76,7 +77,7 @@ class DibiOdbcDriver extends DibiDriver {
 
 
 
-    public function query($sql)
+    public function nativeQuery($sql)
     {
         $this->affectedRows = FALSE;
 
@@ -182,10 +183,8 @@ class DibiOdbcDriver extends DibiDriver {
 
 class DibiOdbcResult extends DibiResult
 {
-    private
-        $resource,
-        $meta,
-        $row = 0;
+    private $resource;
+    private $row = 0;
 
 
     public function __construct($resource)
@@ -219,36 +218,8 @@ class DibiOdbcResult extends DibiResult
     }
 
 
-    public function getFields()
-    {
-        // cache
-        if ($this->meta === NULL)
-            $this->createMeta();
-
-        return array_keys($this->meta);
-    }
-
-
-    protected function detectTypes()
-    {
-        if ($this->meta === NULL)
-            $this->createMeta();
-    }
-
-
     /** this is experimental */
-    public function getMetaData($field)
-    {
-        // cache
-        if ($this->meta === NULL)
-            $this->createMeta();
-
-        return isset($this->meta[$field]) ? $this->meta[$field] : FALSE;
-    }
-
-
-    /** this is experimental */
-    private function createMeta()
+    protected function buildMeta()
     {
         // cache
         if ($this->meta !== NULL)
diff --git a/dibi/drivers/pdo.php b/dibi/drivers/pdo.php
new file mode 100644
index 00000000..b3a723e5
--- /dev/null
+++ b/dibi/drivers/pdo.php
@@ -0,0 +1,219 @@
+<?php
+
+/**
+ * dibi - Database Abstraction Layer according to dgx
+ * --------------------------------------------------
+ *
+ * This source file is subject to the GNU GPL license.
+ *
+ * @author     David Grudl aka -dgx- <dave@dgx.cz>
+ * @link       http://dibi.texy.info/
+ * @copyright  Copyright (c) 2005-2007 David Grudl
+ * @license    GNU GENERAL PUBLIC LICENSE v2
+ * @package    dibi
+ * @category   Database
+ * @version    $Revision$ $Date$
+ */
+
+
+// security - include dibi.php, not this file
+if (!defined('DIBI')) die();
+
+
+/**
+ * The dibi driver for PDO
+ *
+ */
+class DibiPdoDriver extends DibiDriver
+{
+    /** @var PDO */
+    private $conn;
+
+    private $affectedRows = FALSE,
+
+    private $errorMsg;
+
+    public
+        $formats = array(
+            'TRUE'     => "1",
+            'FALSE'    => "0",
+            'date'     => "'Y-m-d'",
+            'datetime' => "'Y-m-d H:i:s'",
+        );
+
+
+
+    public static function connect($config)
+    {
+        if (!extension_loaded('pdo'))
+            throw new DibiException("PHP extension 'pdo' is not loaded");
+
+        if (empty($config['dsn']))
+            throw new DibiException("DSN must be specified");
+
+        if (empty($config['username'])) $config['username'] = NULL;
+        if (empty($config['password'])) $config['password'] = NULL;
+
+        $conn = new PDO($config['dsn'], $config['username'], $config['password']);
+
+        $obj = new self($config);
+        $obj->conn = $conn;
+        return $obj;
+    }
+
+
+
+    public function nativeQuery($sql)
+    {
+        $this->affectedRows = FALSE;
+
+        $this->errorMsg = '';
+        $res = $this->conn->query($sql);
+
+        if ($res === FALSE) return FALSE;
+
+        //$this->affectedRows = 0;
+        //if ($this->affectedRows < 0) $this->affectedRows = FALSE;
+
+        if (is_resource($res))
+            return new DibiSqliteResult($res);
+
+        return TRUE;
+    }
+
+
+    public function affectedRows()
+    {
+        return $this->affectedRows;
+    }
+
+
+    public function insertId()
+    {
+        return $this->conn->lastInsertId();
+    }
+
+
+    public function begin()
+    {
+        return $this->conn->beginTransaction();
+    }
+
+
+    public function commit()
+    {
+        return $this->conn->commit();
+    }
+
+
+    public function rollback()
+    {
+        return $this->conn->rollBack();
+    }
+
+
+    public function errorInfo()
+    {
+        $error = $this->conn->errorInfo();
+        return array(
+            'message'  => $error[2],
+            'code'     => $error[1],
+            'SQLSTATE '=> $error[0],
+        );
+    }
+
+
+    public function escape($value, $appendQuotes = FALSE)
+    {
+        return $appendQuotes
+               ? $this->conn->quote($value)
+               : FALSE; // error
+    }
+
+
+    public function quoteName($value)
+    {
+        return FALSE; // error
+    }
+
+
+
+    public function getMetaData()
+    {
+        trigger_error('Meta is not implemented yet.', E_USER_WARNING);
+    }
+
+
+
+    /**
+     * @see DibiDriver::applyLimit()
+     */
+    public function applyLimit(&$sql, $limit, $offset = 0)
+    {
+        if ($limit < 0 && $offset < 1) return;
+        $sql .= ' LIMIT ' . $limit . ($offset > 0 ? ' OFFSET ' . (int) $offset : '');
+    }
+
+} // class DibiPdoDriver
+
+
+
+
+
+
+
+
+
+class DibiPdoResult extends DibiResult
+{
+    /** @var PDOStatement */
+    private $resource;
+
+    private $row = 0;
+
+
+    public function __construct($resource)
+    {
+        $this->resource = $resource;
+    }
+
+
+    public function rowCount()
+    {
+        return $this->resource->rowCount();
+    }
+
+
+    protected function doFetch()
+    {
+        return $this->resource->fetch(PDO::FETCH_ASSOC, PDO::FETCH_ORI_NEXT, $this->row++);
+    }
+
+
+    public function seek($row)
+    {
+        $this->row = $row;
+    }
+
+
+    protected function free()
+    {
+    }
+
+
+    /** this is experimental */
+    protected function buildMeta()
+    {
+        $count = $this->resource->columnCount();
+        $this->meta = $this->convert = array();
+        for ($index = 0; $index < $count; $index++) {
+            $meta = $this->resource->getColumnMeta($i);
+            $meta['type'] = dibi::FIELD_UNKNOWN;
+            $name = $meta['name'];
+            $this->meta[$name] =  $meta;
+            $this->convert[$name] = $meta['type'];
+        }
+    }
+
+
+} // class DibiPdoResult
diff --git a/dibi/drivers/postgre.php b/dibi/drivers/postgre.php
index 55101540..d14349f0 100644
--- a/dibi/drivers/postgre.php
+++ b/dibi/drivers/postgre.php
@@ -24,7 +24,8 @@ if (!defined('DIBI')) die();
  * The dibi driver for PostgreSql database
  *
  */
-class DibiPostgreDriver extends DibiDriver {
+class DibiPostgreDriver extends DibiDriver
+{
     private
         $conn,
         $affectedRows = FALSE;
@@ -71,7 +72,7 @@ class DibiPostgreDriver extends DibiDriver {
 
 
 
-    public function query($sql)
+    public function nativeQuery($sql)
     {
         $this->affectedRows = FALSE;
 
@@ -175,9 +176,7 @@ class DibiPostgreDriver extends DibiDriver {
 
 class DibiPostgreResult extends DibiResult
 {
-    private
-        $resource,
-        $meta;
+    private $resource;
 
 
     public function __construct($resource)
@@ -210,36 +209,8 @@ class DibiPostgreResult extends DibiResult
     }
 
 
-    public function getFields()
-    {
-        // cache
-        if ($this->meta === NULL)
-            $this->createMeta();
-
-        return array_keys($this->meta);
-    }
-
-
-    protected function detectTypes()
-    {
-        if ($this->meta === NULL)
-            $this->createMeta();
-    }
-
-
     /** this is experimental */
-    public function getMetaData($field)
-    {
-        // cache
-        if ($this->meta === NULL)
-            $this->createMeta();
-
-        return isset($this->meta[$field]) ? $this->meta[$field] : FALSE;
-    }
-
-
-    /** this is experimental */
-    private function createMeta()
+    protected function buildMeta()
     {
         static $types = array(
             'bool'      => dibi::FIELD_BOOL,
diff --git a/dibi/drivers/sqlite.php b/dibi/drivers/sqlite.php
index 49f2d003..1e505f26 100644
--- a/dibi/drivers/sqlite.php
+++ b/dibi/drivers/sqlite.php
@@ -24,7 +24,8 @@ if (!defined('DIBI')) die();
  * The dibi driver for SQlite database
  *
  */
-class DibiSqliteDriver extends DibiDriver {
+class DibiSqliteDriver extends DibiDriver
+{
     private
         $conn,
         $insertId = FALSE,
@@ -70,7 +71,7 @@ class DibiSqliteDriver extends DibiDriver {
 
 
 
-    public function query($sql)
+    public function nativeQuery($sql)
     {
         $this->insertId = $this->affectedRows = FALSE;
 
@@ -174,9 +175,7 @@ class DibiSqliteDriver extends DibiDriver {
 
 class DibiSqliteResult extends DibiResult
 {
-    private
-        $resource,
-        $meta;
+    private $resource;
 
 
     public function __construct($resource)
@@ -208,36 +207,8 @@ class DibiSqliteResult extends DibiResult
     }
 
 
-    public function getFields()
-    {
-        // cache
-        if ($this->meta === NULL)
-            $this->createMeta();
-
-        return array_keys($this->meta);
-    }
-
-
-    protected function detectTypes()
-    {
-        if ($this->meta === NULL)
-            $this->createMeta();
-    }
-
-
     /** this is experimental */
-    public function getMetaData($field)
-    {
-        // cache
-        if ($this->meta === NULL)
-            $this->createMeta();
-
-        return isset($this->meta[$field]) ? $this->meta[$field] : FALSE;
-    }
-
-
-    /** this is experimental */
-    private function createMeta()
+    protected function buildMeta()
     {
         $count = sqlite_num_fields($this->resource);
         $this->meta = $this->convert = array();
diff --git a/dibi/libs/driver.php b/dibi/libs/driver.php
index d879edbc..1504a966 100644
--- a/dibi/libs/driver.php
+++ b/dibi/libs/driver.php
@@ -31,8 +31,7 @@ abstract class DibiDriver
      * Current connection configuration
      * @var array
      */
-    protected
-        $config;
+    protected $config;
 
     /**
      * Describes how convert some datatypes to SQL command
@@ -80,13 +79,76 @@ abstract class DibiDriver
 
 
 
+    /**
+     * Generates and executes SQL query
+     *
+     * @param  array|mixed    one or more arguments
+     * @return int|DibiResult
+     * @throw  DibiException
+     */
+    public function query($args)
+    {
+        // receive arguments
+        if (!is_array($args))
+            $args = func_get_args();
+
+        // and generate SQL
+        $trans = new DibiTranslator($this);
+        dibi::$sql = $sql = $trans->translate($args);
+
+        if ($sql === FALSE) return FALSE;
+
+        // execute SQL
+        $timer = -microtime(true);
+        $res = $this->nativeQuery($sql);
+
+        if ($res === FALSE) { // query error
+            if (dibi::$logFile) { // log to file
+                $info = $this->errorInfo();
+                if ($info['code']) $info['message'] = "[$info[code]] $info[message]";
+                dibi::log(
+                    "ERROR: $info[message]"
+                    . "\n-- SQL: " . $sql
+                    . ";\n-- " . date('Y-m-d H:i:s ')
+                );
+            }
+
+            if (dibi::$throwExceptions) {
+                $info = $this->errorInfo();
+                throw new DibiException('Query error', $info, $sql);
+            } else {
+                $info = $this->errorInfo();
+                if ($info['code']) $info['message'] = "[$info[code]] $info[message]";
+                trigger_error("dibi: $info[message]", E_USER_WARNING);
+                return FALSE;
+            }
+        }
+
+        if (dibi::$logFile && dibi::$logAll) { // log success
+            $timer += microtime(true);
+            $msg = $res instanceof DibiResult ? 'object('.get_class($res).') rows: '.$res->rowCount() : 'OK';
+
+            dibi::log(
+                "OK: " . $sql
+                . ";\n-- result: $msg"
+                . "\n-- takes: " . sprintf('%0.3f', $timer * 1000) . ' ms'
+                . "\n-- " . date('Y-m-d H:i:s ')
+            );
+        }
+
+        return $res;
+    }
+
+
+
     /**
      * Executes the SQL query
      *
      * @param string        SQL statement.
      * @return object|bool  Result set object or TRUE on success, FALSE on failure
      */
-    abstract public function query($sql);
+    abstract public function nativeQuery($sql);
+
 
 
     /**
@@ -97,6 +159,7 @@ abstract class DibiDriver
     abstract public function affectedRows();
 
 
+
     /**
      * Retrieves the ID generated for an AUTO_INCREMENT column by the previous INSERT query
      * @return int|bool  int on success or FALSE on failure
@@ -104,24 +167,28 @@ abstract class DibiDriver
     abstract public function insertId();
 
 
+
     /**
      * Begins a transaction (if supported).
      */
     abstract public function begin();
 
 
+
     /**
      * Commits statements in a transaction.
      */
     abstract public function commit();
 
 
+
     /**
      * Rollback changes in a transaction.
      */
     abstract public function rollback();
 
 
+
     /**
      * Returns last error
      * @return array with items 'message' and 'code'
@@ -129,6 +196,7 @@ abstract class DibiDriver
     abstract public function errorInfo();
 
 
+
     /**
      * Escapes the string
      * @param string     unescaped string
@@ -138,6 +206,7 @@ abstract class DibiDriver
     abstract public function escape($value, $appendQuotes = FALSE);
 
 
+
     /**
      * Quotes SQL identifier (table's or column's name, etc.)
      * @param string     identifier
@@ -155,6 +224,7 @@ abstract class DibiDriver
     abstract public function getMetaData();
 
 
+
     /**
      * Experimental - injects LIMIT/OFFSET to the SQL query
      * @param string &$sql  The SQL query that will be modified.
@@ -165,6 +235,7 @@ abstract class DibiDriver
     abstract public function applyLimit(&$sql, $limit, $offset = 0);
 
 
+
     /**
      * Undefined property usage prevention
      */
diff --git a/dibi/libs/resultset.php b/dibi/libs/resultset.php
index c945b6f1..56078d89 100644
--- a/dibi/libs/resultset.php
+++ b/dibi/libs/resultset.php
@@ -51,8 +51,14 @@ abstract class DibiResult implements IteratorAggregate, Countable
      */
     protected $convert;
 
+    /**
+     * Describes columns types
+     * @var array
+     */
+    protected $meta;
 
-    static private $meta = array(
+
+    static private $types = array(
         dibi::FIELD_TEXT =>    'string',
         dibi::FIELD_BINARY =>  'string',
         dibi::FIELD_BOOL =>    'bool',
@@ -70,30 +76,15 @@ abstract class DibiResult implements IteratorAggregate, Countable
      */
     abstract public function seek($row);
 
+
+
     /**
      * Returns the number of rows in a result set
      * @return int
      */
     abstract public function rowCount();
 
-    /**
-     * Gets an array of field names
-     * @return array
-     */
-    abstract public function getFields();
 
-    /**
-     * Gets an array of meta informations about column
-     * @param  string  column name
-     * @return array
-     */
-    abstract public function getMetaData($field);
-
-    /**
-     * Acquires ....
-     * @return void
-     */
-    abstract protected function detectTypes();
 
     /**
      * Frees the resources allocated for this result set
@@ -101,6 +92,8 @@ abstract class DibiResult implements IteratorAggregate, Countable
      */
     abstract protected function free();
 
+
+
     /**
      * Fetches the row at current position and moves the internal cursor to the next position
      * internal usage only
@@ -109,6 +102,7 @@ abstract class DibiResult implements IteratorAggregate, Countable
     abstract protected function doFetch();
 
 
+
     /**
      * Fetches the row at current position, process optional type conversion
      * and moves the internal cursor to the next position
@@ -296,6 +290,7 @@ abstract class DibiResult implements IteratorAggregate, Countable
     }
 
 
+
     /** is this needed? */
     public function getType($field)
     {
@@ -303,13 +298,14 @@ abstract class DibiResult implements IteratorAggregate, Countable
     }
 
 
+
     public function convert($value, $type)
     {
         if ($value === NULL || $value === FALSE)
             return $value;
 
-        if (isset(self::$meta[$type])) {
-            settype($value, self::$meta[$type]);
+        if (isset(self::$types[$type])) {
+            settype($value, self::$types[$type]);
             return $value;
         }
 
@@ -323,6 +319,52 @@ abstract class DibiResult implements IteratorAggregate, Countable
     }
 
 
+
+    /**
+     * Gets an array of field names
+     * @return array
+     */
+    public function getFields()
+    {
+        // lazy init
+        if ($this->meta === NULL) $this->buildMeta();
+        return array_keys($this->meta);
+    }
+
+
+
+    /**
+     * Gets an array of meta informations about column
+     * @param  string  column name
+     * @return array
+     */
+    public function getMetaData($field)
+    {
+        // lazy init
+        if ($this->meta === NULL) $this->buildMeta();
+        return isset($this->meta[$field]) ? $this->meta[$field] : FALSE;
+    }
+
+
+
+    /**
+     * Acquires ....
+     * @return void
+     */
+    protected function detectTypes()
+    {
+        if ($this->meta === NULL) $this->buildMeta();
+    }
+
+
+
+    /**
+     * @return void
+     */
+    abstract protected function buildMeta();
+
+
+
     /** these are the required IteratorAggregate functions */
     public function getIterator($offset = NULL, $count = NULL)
     {
@@ -331,6 +373,7 @@ abstract class DibiResult implements IteratorAggregate, Countable
     /** end required IteratorAggregate functions */
 
 
+
     /** these are the required Countable functions */
     public function count()
     {
@@ -339,6 +382,7 @@ abstract class DibiResult implements IteratorAggregate, Countable
     /** end required Countable functions */
 
 
+
     /**
      * Undefined property usage prevention
      */
@@ -393,6 +437,7 @@ class DibiResultIterator implements Iterator
     }
 
 
+
     /** these are the required Iterator functions */
     public function rewind()
     {
@@ -402,18 +447,21 @@ class DibiResultIterator implements Iterator
     }
 
 
+
     public function key()
     {
         return $this->row;
     }
 
 
+
     public function current()
     {
         return $this->record;
     }
 
 
+
     public function next()
     {
         $this->record = $this->result->fetch();
@@ -421,6 +469,7 @@ class DibiResultIterator implements Iterator
     }
 
 
+
     public function valid()
     {
         return is_array($this->record) && ($this->row < $this->count);
diff --git a/dibi/libs/translator.php b/dibi/libs/translator.php
index 99307d35..65bec0e6 100644
--- a/dibi/libs/translator.php
+++ b/dibi/libs/translator.php
@@ -29,29 +29,26 @@ class DibiTranslator
 {
     private
         $driver,
-        $subK, $subV,
         $modifier,
         $hasError,
         $comment,
         $ifLevel,
         $ifLevelStart;
 
-    public $sql;
 
 
-    public function __construct($driver, $subst)
+    public function __construct($driver)
     {
         $this->driver = $driver;
-        $this->subK = array_keys($subst);
-        $this->subV = array_values($subst);
     }
 
 
+
     /**
      * Generates SQL
      *
      * @param  array
-     * @return string
+     * @return string|FALSE
      * @throw  DibiException
      */
     public function translate($args)
@@ -112,16 +109,30 @@ class DibiTranslator
         // TODO: check !!!
         $sql = preg_replace('#\x00.*?\x00#s', '', $sql);
 
-        $this->sql = $sql;
+        // error handling
+        if ($this->hasError) {
+            if (dibi::$logFile)  // log to file
+                dibi::log(
+                    "ERROR: SQL generate error"
+                    . "\n-- SQL: " . $sql
+                    . ";\n-- " . date('Y-m-d H:i:s ')
+                );
 
-        return !$this->hasError;
+            if (dibi::$throwExceptions)
+                throw new DibiException('SQL generate error', NULL, $sql);
+            else {
+                trigger_error("dibi: SQL generate error: $sql", E_USER_WARNING);
+                return FALSE;
+            }
+        }
+
+        // OK
+        return $sql;
     }
 
 
 
 
-
-
     private function formatValue($value, $modifier)
     {
         // array processing (with or without modifier)
@@ -266,7 +277,6 @@ class DibiTranslator
 
 
 
-
     /**
      * PREG callback for @see self::formatValue()
      * @param  array
@@ -351,11 +361,7 @@ class DibiTranslator
      */
     private function quote($value)
     {
-        // apply substitutions
-        if ($this->subK && (strpos($value, ':') !== FALSE))
-            return str_replace($this->subK, $this->subV, $value);
-
-        return $this->driver->quoteName($value);
+        return $this->driver->quoteName( dibi::substitute($value) );
     }
 
 
diff --git a/examples/log.sql b/examples/log.sql
index 60937d7a..3a3823f9 100644
--- a/examples/log.sql
+++ b/examples/log.sql
@@ -1,84 +1,140 @@
-SELECT * FROM `*nucleus_item` WHERE `inumber` <  38;
--- Result: Query error: Can't find file: '.\test\*nucleus_item.frm' (errno: 22)
--- Takes: 178.920 ms
-
-
-
-Successfully connected to DB 'mysql'
-
-Query error: Table 'test.nucleus_item' doesn't exist
-
-SELECT * FROM `nucleus_item` WHERE `inumber` =  38;
--- Result: Query error: Table 'test.nucleus_item' doesn't exist
--- Takes: 2.527 ms
-
-
-
-Query error: Table 'test.nucleus_item' doesn't exist
-
-SELECT * FROM `nucleus_item` WHERE `inumber` <  38;
--- Result: Query error: Table 'test.nucleus_item' doesn't exist
--- Takes: 3.806 ms
-
-
-
-Query error: Can't find file: '.\test\*nucleus_item.frm' (errno: 22)
-
-SELECT * FROM `*nucleus_item` WHERE `inumber` <  38;
--- Result: Query error: Can't find file: '.\test\*nucleus_item.frm' (errno: 22)
--- Takes: 5.017 ms
-
-
-
-Successfully connected to DB 'mysql'
-
-Query error: Table 'test.nucleus_item' doesn't exist
-
-SELECT * FROM `nucleus_item` WHERE `inumber` =  38;
--- Result: Query error: Table 'test.nucleus_item' doesn't exist
--- Takes: 4.560 ms
-
-
-
-Query error: Table 'test.nucleus_item' doesn't exist
-
-SELECT * FROM `nucleus_item` WHERE `inumber` <  38;
--- Result: Query error: Table 'test.nucleus_item' doesn't exist
--- Takes: 2.001 ms
-
-
-
-Query error: Can't find file: '.\test\*nucleus_item.frm' (errno: 22)
-
-SELECT * FROM `*nucleus_item` WHERE `inumber` <  38;
--- Result: Query error: Can't find file: '.\test\*nucleus_item.frm' (errno: 22)
--- Takes: 39.903 ms
-
-
-
-Successfully connected to DB 'mysql'
-
-Query error: Table 'test.nucleus_item' doesn't exist
-
-SELECT * FROM `nucleus_item` WHERE `inumber` =  38;
--- Result: Query error: Table 'test.nucleus_item' doesn't exist
--- Takes: 2.183 ms
-
-
-
-Query error: Table 'test.nucleus_item' doesn't exist
-
-SELECT * FROM `nucleus_item` WHERE `inumber` <  38;
--- Result: Query error: Table 'test.nucleus_item' doesn't exist
--- Takes: 2.513 ms
-
-
-
-Query error: Can't find file: '.\test\*nucleus_item.frm' (errno: 22)
-
-SELECT * FROM `*nucleus_item` WHERE `inumber` <  38;
--- Result: Query error: Can't find file: '.\test\*nucleus_item.frm' (errno: 22)
--- Takes: 5.509 ms
-
-
-
+OK: connected to DB 'mysql'
+
+OK: SELECT * FROM `mytable` WHERE `inumber` =  38;
+-- result: object(DibiMySqlResult) rows: 0
+-- takes: 1.109 ms
+-- 2007-02-02 04:38:34 
+
+OK: SELECT * FROM `mytable` WHERE `inumber` <  38;
+-- result: object(DibiMySqlResult) rows: 12
+-- takes: 1.492 ms
+-- 2007-02-02 04:38:34 
+
+ERROR: [1064] You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'FROM `mytable` WHERE `inumber` <  38' at line 1
+-- SQL: SELECT FROM `mytable` WHERE `inumber` <  38;
+-- 2007-02-02 04:38:34 
+
+ERROR: [1064] You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'FROM `mytable` WHERE `inumber` <  38' at line 1
+-- SQL: SELECT FROM `mytable` WHERE `inumber` <  38;
+-- 2007-02-02 04:38:34 
+
+OK: connected to DB 'mysql'
+
+OK: SELECT * FROM `mytable` WHERE `inumber` =  38;
+-- result: object(DibiMySqlResult) rows: 0
+-- takes: 1.565 ms
+-- 2007-02-02 04:47:37 
+
+OK: SELECT * FROM `mytable` WHERE `inumber` <  38;
+-- result: object(DibiMySqlResult) rows: 12
+-- takes: 1.347 ms
+-- 2007-02-02 04:47:37 
+
+ERROR: [1064] You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'FROM `mytable` WHERE `inumber` <  38' at line 1
+-- SQL: SELECT FROM `mytable` WHERE `inumber` <  38;
+-- 2007-02-02 04:47:37 
+
+ERROR: [1064] You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'FROM `mytable` WHERE `inumber` <  38' at line 1
+-- SQL: SELECT FROM `mytable` WHERE `inumber` <  38;
+-- 2007-02-02 04:47:37 
+
+OK: connected to DB 'mysql'
+
+OK: SELECT * FROM `mytable` WHERE `inumber` =  38;
+-- result: object(DibiMySqlResult) rows: 0
+-- takes: 1.147 ms
+-- 2007-02-02 04:47:56 
+
+OK: SELECT * FROM `mytable` WHERE `inumber` <  38;
+-- result: object(DibiMySqlResult) rows: 12
+-- takes: 1.085 ms
+-- 2007-02-02 04:47:56 
+
+ERROR: [1064] You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'FROM `mytable` WHERE `inumber` <  38' at line 1
+-- SQL: SELECT FROM `mytable` WHERE `inumber` <  38;
+-- 2007-02-02 04:47:56 
+
+ERROR: [1064] You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'FROM `mytable` WHERE `inumber` <  38' at line 1
+-- SQL: SELECT FROM `mytable` WHERE `inumber` <  38;
+-- 2007-02-02 04:47:57 
+
+OK: connected to DB 'mysql'
+
+OK: SELECT * FROM `mytable` WHERE `inumber` =  38;
+-- result: object(DibiMySqlResult) rows: 0
+-- takes: 0.944 ms
+-- 2007-02-02 04:48:23 
+
+OK: SELECT * FROM `mytable` WHERE `inumber` <  38;
+-- result: object(DibiMySqlResult) rows: 12
+-- takes: 1.258 ms
+-- 2007-02-02 04:48:23 
+
+ERROR: [1064] You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'FROM `mytable` WHERE `inumber` <  38' at line 1
+-- SQL: SELECT FROM `mytable` WHERE `inumber` <  38;
+-- 2007-02-02 04:48:23 
+
+ERROR: [1064] You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'FROM `mytable` WHERE `inumber` <  38' at line 1
+-- SQL: SELECT FROM `mytable` WHERE `inumber` <  38;
+-- 2007-02-02 04:48:23 
+
+OK: connected to DB 'mysql'
+
+OK: SELECT * FROM `mytable` WHERE `inumber` =  38;
+-- result: object(DibiMySqlResult) rows: 0
+-- takes: 1.039 ms
+-- 2007-02-02 04:50:46 
+
+OK: SELECT * FROM `mytable` WHERE `inumber` <  38;
+-- result: object(DibiMySqlResult) rows: 12
+-- takes: 1.499 ms
+-- 2007-02-02 04:50:46 
+
+ERROR: [1064] You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'FROM `mytable` WHERE `inumber` <  38' at line 1
+-- SQL: SELECT FROM `mytable` WHERE `inumber` <  38;
+-- 2007-02-02 04:50:46 
+
+ERROR: [1064] You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'FROM `mytable` WHERE `inumber` <  38' at line 1
+-- SQL: SELECT FROM `mytable` WHERE `inumber` <  38;
+-- 2007-02-02 04:50:46 
+
+OK: connected to DB 'mysql'
+
+OK: SELECT * FROM `mytable` WHERE `inumber` =  38;
+-- result: object(DibiMySqlResult) rows: 0
+-- takes: 1.518 ms
+-- 2007-03-28 00:45:27 
+
+OK: SELECT * FROM `mytable` WHERE `inumber` <  38;
+-- result: object(DibiMySqlResult) rows: 12
+-- takes: 6.385 ms
+-- 2007-03-28 00:45:27 
+
+ERROR: [1064] You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'FROM `mytable` WHERE `inumber` <  38' at line 1
+-- SQL: SELECT FROM `mytable` WHERE `inumber` <  38;
+-- 2007-03-28 00:45:27 
+
+ERROR: [1064] You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'FROM `mytable` WHERE `inumber` <  38' at line 1
+-- SQL: SELECT FROM `mytable` WHERE `inumber` <  38;
+-- 2007-03-28 00:45:27 
+
+OK: connected to DB 'mysql'
+
+OK: SELECT * FROM `mytable` WHERE `inumber` =  38;
+-- result: object(DibiMySqlResult) rows: 0
+-- takes: 1.124 ms
+-- 2007-03-28 01:06:07 
+
+OK: SELECT * FROM `mytable` WHERE `inumber` <  38;
+-- result: object(DibiMySqlResult) rows: 12
+-- takes: 1.607 ms
+-- 2007-03-28 01:06:07 
+
+ERROR: [1064] You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'FROM `mytable` WHERE `inumber` <  38' at line 1
+-- SQL: SELECT FROM `mytable` WHERE `inumber` <  38;
+-- 2007-03-28 01:06:07 
+
+ERROR: [1064] You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'FROM `mytable` WHERE `inumber` <  38' at line 1
+-- SQL: SELECT FROM `mytable` WHERE `inumber` <  38;
+-- 2007-03-28 01:06:07 
+
diff --git a/version.txt b/version.txt
index f141d5f7..ba8995ea 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-Dibi Version 0.7e
+Dibi Version 0.7f