title: PHP: MDB2 error - call to undefined function
body: <p>I have error in my old project based od MDB2 and PHP 5.4:</p>
  
  <p><strong>PHP Fatal error:  Call to undefined function: MDB2_Driver_pgsql::raiseError(). in /path/to/project/vendor/pear-pear.php.net/MDB2/MDB2.php on line 1936</strong></p>
  
  <p>Dependencies loaded via composer:</p>
  
  <pre><code>"require": {
      "pear-pear.php.net/Validate": "0.7.0",
      "pear-pear.php.net/Validate_PL": "0.5.1",
      "pear-pear.php.net/HTML_Quickform": "*",
      "pear-pear.php.net/HTML_Table": "*",
      "pear-pear.php.net/MDB2": "*",
      "pear-pear.php.net/MDB2_Driver_pgsql": "*",
      "pear-pear.php.net/OLE": "1.0.0RC1",
      "pear-pear.php.net/Spreadsheet_Excel_Writer": "0.9.1",
      "pear-pear.php.net/File_SearchReplace": "*",
  </code></pre>
  
  <p>And I don't change anything in this code. Anyone had this problem? :)</p>