function getFieldsToSelect()
{
if (self::$_versionFields == null) {
$sTable = KTUtil::getTableName('document_metadata_version');
$aFields = DBUtil::getResultArray(array("DESCRIBE {$sTable}"));
$result = array();
for ($i = 0; $i < count($aFields); $i++) {
$result[KTDocumentMetaDataVersion::getFieldType($aFields[$i]['Type']) . KTUtil::camelize($aFields[$i]['Field'])] = $aFields[$i]['Field'];
}
self::$_versionFields = $result;
}
return self::$_versionFields;
}
