diff --git a/application/controllers/system/Test.php b/application/controllers/system/Test.php
new file mode 100644
index 000000000..f22898a34
--- /dev/null
+++ b/application/controllers/system/Test.php
@@ -0,0 +1,38 @@
+<?php
+
+if (! defined('BASEPATH')) exit('No direct script access allowed');
+
+class Test extends VileSci_Controller
+{
+	public function __construct()
+    {
+        parent::__construct();
+
+        $this->load->library('WidgetLib');
+    }
+
+	/**
+	 *
+	 */
+	public function index()
+	{
+		echo $this->widgetlib->widget(
+			'FilterWidget',
+			array(
+				'app' => 'OpenProject',
+				'datasetName' => 'Arbeitspakete',
+				'query' => '
+					SELECT p.person_id AS PersonId,
+							p.nachname AS Nachname,
+							p.vorname AS Vorname,
+							k.kontakt AS Email
+					  FROM public.tbl_person p INNER JOIN public.tbl_kontakt k USING(person_id)
+					 WHERE p.aktiv = TRUE
+					   AND p.person_id = k.person_id
+					   AND k.kontakttyp = \'email\'
+					   AND p.person_id < 1000
+				'
+			)
+		);
+	}
+}
diff --git a/application/core/DB_Model.php b/application/core/DB_Model.php
index ab5ab2768..e6bd31114 100644
--- a/application/core/DB_Model.php
+++ b/application/core/DB_Model.php
@@ -23,6 +23,9 @@ class DB_Model extends FHC_Model
 	protected $hasSequence;	// False if this table has a composite primary key that is not using a sequence
 							// True if this table has a primary key that uses a sequence
 
+	private $executedQueryMetaData;
+	private $executedQueryListFields;
+
 	/**
 	 * Constructor
 	 */
@@ -670,6 +673,44 @@ class DB_Model extends FHC_Model
 		return $this->fieldExists(UDFLib::COLUMN_NAME);
 	}
 
+	/**
+	 * Get the list of the fields after having executed a query
+	 */
+	public function getExecutedQueryListFields()
+	{
+		return $this->executedQueryListFields;
+	}
+
+	/**
+	 * Get meda data info about the retrived fields after having executed a query
+	 */
+	public function getExecutedQueryMetaData()
+	{
+		return $this->executedQueryMetaData;
+	}
+
+	/**
+	 * Like execQuery, but it allows only to perform queries to read data
+	 */
+	public function execReadOnlyQuery($query, $parametersArray = null)
+	{
+		//
+		if (!stripos($query, 'INSERT')
+			&& !stripos($query, 'UPDATE')
+			&& !stripos($query, 'DELETE')
+			&& !stripos($query, 'CREATE')
+			&& !stripos($query, 'ALTER')
+			&& !stripos($query, 'GRANT')
+			&& !stripos($query, 'DROP'))
+		{
+			return $this->execQuery($query, $parametersArray);
+		}
+		else
+		{
+			return error('You are allowed to run only query for reading data');
+		}
+	}
+
 	// ------------------------------------------------------------------------------------------
 	// Protected methods
 
@@ -809,20 +850,23 @@ class DB_Model extends FHC_Model
 		if (is_object($result))
 		{
 			$toBeConverterdArray = array(); // Fields to be converted
-			$metaDataArray = $result->field_data(); // Fields information
-			for ($i = 0; $i < count($metaDataArray); $i++) // Looking for booleans and arrays
+
+			$this->executedQueryMetaData = $result->field_data(); // Fields information
+			$this->executedQueryListFields = $result->list_fields(); // List of the retrived fields
+
+			for ($i = 0; $i < count($this->executedQueryMetaData); $i++) // Looking for booleans and arrays
 			{
 				// If array type, boolean type OR a UDF
-				if (strpos($metaDataArray[$i]->type, DB_Model::PGSQL_ARRAY_TYPE) !== false
-					|| $metaDataArray[$i]->type == DB_Model::PGSQL_BOOLEAN_TYPE
-					|| $this->udflib->isUDFColumn($metaDataArray[$i]->name, $metaDataArray[$i]->type))
+				if (strpos($this->executedQueryMetaData[$i]->type, DB_Model::PGSQL_ARRAY_TYPE) !== false
+					|| $this->executedQueryMetaData[$i]->type == DB_Model::PGSQL_BOOLEAN_TYPE
+					|| $this->udflib->isUDFColumn($this->executedQueryMetaData[$i]->name, $this->executedQueryMetaData[$i]->type))
 				{
 					// Name and type of the field to be converted
 					$toBeConverted = new stdClass();
 					// Set the type of the field to be converted
-					$toBeConverted->type = $metaDataArray[$i]->type;
+					$toBeConverted->type = $this->executedQueryMetaData[$i]->type;
 					// Set the name of the field to be converted
-					$toBeConverted->name = $metaDataArray[$i]->name;
+					$toBeConverted->name = $this->executedQueryMetaData[$i]->name;
 					// Add the field to be converted to $toBeConverterdArray
 					array_push($toBeConverterdArray, $toBeConverted);
 				}
diff --git a/application/libraries/UDFLib.php b/application/libraries/UDFLib.php
index 1e16c11ac..2d453f068 100644
--- a/application/libraries/UDFLib.php
+++ b/application/libraries/UDFLib.php
@@ -625,7 +625,7 @@ class UDFLib
 		elseif (isset($jsonSchema->{UDFLib::LIST_VALUES}->sql))
 		{
 			// UDFModel is loaded in method _loadUDF that is called before the current method
-			$queryResult = $this->_ci->UDFModel->execQuery($jsonSchema->{UDFLib::LIST_VALUES}->sql);
+			$queryResult = $this->_ci->UDFModel->execReadOnlyQuery($jsonSchema->{UDFLib::LIST_VALUES}->sql);
 			if (hasData($queryResult))
 			{
 				$parameters = $queryResult->retval;
diff --git a/application/models/system/Filters_model.php b/application/models/system/Filters_model.php
new file mode 100644
index 000000000..546e2a5fd
--- /dev/null
+++ b/application/models/system/Filters_model.php
@@ -0,0 +1,14 @@
+<?php
+
+class Filters_model extends DB_Model
+{
+	/**
+	 * Constructor
+	 */
+	public function __construct()
+	{
+		parent::__construct();
+		$this->dbTable = 'system.tbl_filters';
+		$this->pk = 'filter_id';
+	}
+}
diff --git a/application/models/system/UDF_model.php b/application/models/system/UDF_model.php
index e9bef54f6..ae9a91a69 100644
--- a/application/models/system/UDF_model.php
+++ b/application/models/system/UDF_model.php
@@ -6,10 +6,10 @@ class UDF_model extends DB_Model
 	const STRING_NULL = 'null';
 	const STRING_TRUE = 'true';
 	const STRING_FALSE = 'false';
-	
+
 	const UDF_DROPDOWN_TYPE = 'dropdown';
 	const UDF_MULTIPLEDROPDOWN_TYPE = 'multipledropdown';
-	
+
 	/**
 	 * Constructor
 	 */
@@ -20,41 +20,14 @@ class UDF_model extends DB_Model
 		$this->pk = array('schema', 'table');
 		$this->hasSequence = false;
 	}
-	
-	/**
-	 * Override DB_Model method execQuery to allow only to perform queries to read data
-	 */
-	public function execQuery($query, $parametersArray = null)
-	{
-		// 
-		if (
-			(
-				substr($query, 0, 6) == 'SELECT'
-				|| substr($query, 0, 4) == 'WITH'
-			)
-			&&
-			(
-				!stripos($query, 'INSERT')
-				&& !stripos($query, 'UPDATE')
-				&& !stripos($query, 'DELETE')
-			)
-		)
-		{
-			return parent::execQuery($query, $parametersArray);
-		}
-		else
-		{
-			return error('You are allowed to run only query for reading data');
-		}
-	}
-	
+
 	/**
 	 * Returns all the UDF for this table
 	 */
 	public function getUDFsDefinitions($schemaAndTable)
 	{
 		$st = $this->getSchemaAndTable($schemaAndTable);
-		
+
 		$this->addSelect(UDFLib::COLUMN_JSON_DESCRIPTION);
 		$udfResults = $this->loadWhere(
 			array(
@@ -62,13 +35,13 @@ class UDF_model extends DB_Model
 				'table' => $st->table
 			)
 		);
-		
+
 		return $udfResults;
 	}
 
 	// ------------------------------------------------------------------------------------
 	// These methods work only with the this version of FAS, not with the future versions
-	
+
 	/**
 	 * Methods to save data from FAS
 	 */
@@ -77,53 +50,53 @@ class UDF_model extends DB_Model
 		$result = error('No way man!');
 		$resultPerson = success('person');
 		$resultPrestudent = success('prestudent');
-		
+
 		$person_id = $udfs['person_id'];
 		unset($udfs['person_id']);
-		
+
 		$prestudent_id = $udfs['prestudent_id'];
 		unset($udfs['prestudent_id']);
-		
+
 		$jsons = array();
-		
-		// 
+
+		//
 		if (isset($person_id))
 		{
 			// Load model Person_model
 			$this->load->model('person/Person_model', 'PersonModel');
-			
+
 			$result = $this->load(array('public', 'tbl_person'));
 			if (isSuccess($result) && count($result->retval) == 1)
 			{
 				$jsons = json_decode($result->retval[0]->jsons);
 			}
-			
+
 			$udfs = $this->_fillMissingTextUDF($udfs, $jsons);
 			$udfs = $this->_fillMissingChkboxUDF($udfs, $jsons);
 			$udfs = $this->_fillMissingDropdownUDF($udfs, $jsons);
-			
+
 			$resultPerson = $this->PersonModel->update($person_id, $udfs);
 		}
-		
-		// 
+
+		//
 		if (isset($prestudent_id))
 		{
 			// Load model Prestudent_model
 			$this->load->model('crm/Prestudent_model', 'PrestudentModel');
-			
+
 			$result = $this->load(array('public', 'tbl_prestudent'));
 			if (isSuccess($result) && count($result->retval) == 1)
 			{
 				$jsons = json_decode($result->retval[0]->jsons);
 			}
-			
+
 			$udfs = $this->_fillMissingTextUDF($udfs, $jsons);
 			$udfs = $this->_fillMissingChkboxUDF($udfs, $jsons);
 			$udfs = $this->_fillMissingDropdownUDF($udfs, $jsons);
-			
+
 			$resultPrestudent = $this->PrestudentModel->update($prestudent_id, $udfs);
 		}
-		
+
 		if (isSuccess($resultPerson) && isSuccess($resultPrestudent))
 		{
 			$result = success(array($resultPerson->retval, $resultPrestudent->retval));
@@ -136,17 +109,17 @@ class UDF_model extends DB_Model
 		{
 			$result = $resultPrestudent;
 		}
-		
+
 		return $result;
 	}
-	
+
 	/**
-	 * 
+	 *
 	 */
 	private function _fillMissingChkboxUDF($udfs, $jsons)
 	{
 		$_fillMissingChkboxUDF = $udfs;
-		
+
 		foreach($jsons as $udfDescription)
 		{
 			if ($udfDescription->{UDFLib::TYPE} == UDFLib::CHKBOX_TYPE)
@@ -168,17 +141,17 @@ class UDF_model extends DB_Model
 				}
 			}
 		}
-		
+
 		return $_fillMissingChkboxUDF;
 	}
-	
+
 	/**
-	 * 
+	 *
 	 */
 	private function _fillMissingDropdownUDF($udfs, $jsons)
 	{
 		$_fillMissingDropdownUDF = $udfs;
-		
+
 		foreach($jsons as $udfDescription)
 		{
 			if ($udfDescription->{UDFLib::TYPE} == UDF_model::UDF_DROPDOWN_TYPE
@@ -194,17 +167,17 @@ class UDF_model extends DB_Model
 				}
 			}
 		}
-		
+
 		return $_fillMissingDropdownUDF;
 	}
-	
+
 	/**
-	 * 
+	 *
 	 */
 	private function _fillMissingTextUDF($udfs, $jsons)
 	{
 		$_fillMissingTextUDF = $udfs;
-		
+
 		foreach($jsons as $udfDescription)
 		{
 			if ($udfDescription->{UDFLib::TYPE} == 'textarea'
@@ -220,7 +193,7 @@ class UDF_model extends DB_Model
 				}
 			}
 		}
-		
+
 		return $_fillMissingTextUDF;
 	}
-}
\ No newline at end of file
+}
diff --git a/application/views/widgets/filter/selectFields.php b/application/views/widgets/filter/selectFields.php
new file mode 100644
index 000000000..a4f11dbfb
--- /dev/null
+++ b/application/views/widgets/filter/selectFields.php
@@ -0,0 +1,20 @@
+<div>
+	<?php
+		foreach ($listFields as $key => $value)
+		{
+			echo '<input type="button" value="'.$value.'">';
+		}
+	?>
+</div>
+<div>
+	Add:
+	<select>
+		<option value="">Select a field to add..</option>
+		<?php
+			foreach ($listFields as $key => $value)
+			{
+				echo '<option value="'.$value.'">'.$value.'</option>';
+			}
+		?>
+	</select>
+</div>
diff --git a/application/views/widgets/filter/selectFilters.php b/application/views/widgets/filter/selectFilters.php
new file mode 100644
index 000000000..72f963b57
--- /dev/null
+++ b/application/views/widgets/filter/selectFilters.php
@@ -0,0 +1,20 @@
+<div>
+	<?php
+		foreach ($metaData as $key => $value)
+		{
+			echo $value->name.' - '.$value->type.'<br>';
+		}
+	?>
+</div>
+<div>
+	Add filter:
+	<select>
+		<option value="">Select a field to add..</option>
+		<?php
+			foreach ($metaData as $key => $value)
+			{
+				echo '<option value="'.$value->name.'">'.$value->name.'</option>';
+			}
+		?>
+	</select>
+</div>
diff --git a/application/views/widgets/filter/tableDataset.php b/application/views/widgets/filter/tableDataset.php
new file mode 100644
index 000000000..6927a0923
--- /dev/null
+++ b/application/views/widgets/filter/tableDataset.php
@@ -0,0 +1,9 @@
+<div>
+	<?php
+		$result = $dataset->retval;
+		foreach ($result as $key => $value)
+		{
+			var_dump($value);
+		}
+	?>
+</div>
diff --git a/application/widgets/FilterWidget.php b/application/widgets/FilterWidget.php
new file mode 100644
index 000000000..721fd7c55
--- /dev/null
+++ b/application/widgets/FilterWidget.php
@@ -0,0 +1,61 @@
+<?php
+
+/**
+ *
+ */
+class FilterWidget extends Widget
+{
+	private $app;
+	private $datasetName;
+
+	/**
+	 *
+	 */
+	public function __construct($name, $args = array())
+	{
+		parent::__construct($name, $args);
+	}
+
+	/**
+	 *
+	 */
+	public function display($widgetData)
+	{
+		$this->load->model('system/Filters_model', 'FiltersModel');
+
+		$this->app = $widgetData['app'];
+		$this->datasetName = $widgetData['datasetName'];
+
+		$dataset = $this->FiltersModel->execReadOnlyQuery($widgetData['query']);
+
+		$this->loadViewSelectFields($this->FiltersModel->getExecutedQueryListFields());
+
+		$this->loadViewSelectFilters($this->FiltersModel->getExecutedQueryMetaData());
+
+		$this->loadViewTableDataset($dataset);
+	}
+
+	/**
+	 *
+	 */
+	private function loadViewSelectFields($listFields)
+	{
+		$this->view('widgets/filter/selectFields', array('listFields' => $listFields));
+	}
+
+	/**
+	 *
+	 */
+	private function loadViewSelectFilters($metaData)
+	{
+		$this->view('widgets/filter/selectFilters', array('metaData' => $metaData));
+	}
+
+	/**
+	 *
+	 */
+	private function loadViewTableDataset($result)
+	{
+		$this->view('widgets/filter/tableDataset', array('dataset' => $result));
+	}
+}
diff --git a/system/dbupdate_3.3.php b/system/dbupdate_3.3.php
index 55b272bab..771a3f5e7 100644
--- a/system/dbupdate_3.3.php
+++ b/system/dbupdate_3.3.php
@@ -674,6 +674,225 @@ if ($result = @$db->db_query("SELECT 1 FROM system.tbl_berechtigung WHERE berech
 //---------------------------------------------------------------------------------------------------------------------
 
 
+//---------------------------------------------------------------------------------------------------------------------
+// Start filters
+
+// SEQUENCE tbl_filters_id_seq
+if ($result = $db->db_query("SELECT 0 FROM pg_class WHERE relname = 'tbl_filters_id_seq'"))
+{
+	if ($db->db_num_rows($result) == 0)
+	{
+		$qry = '
+			CREATE SEQUENCE system.tbl_filters_id_seq
+				START WITH 1
+				INCREMENT BY 1
+				NO MAXVALUE
+				NO MINVALUE
+				CACHE 1;
+			';
+		if(!$db->db_query($qry))
+			echo '<strong>system.tbl_filters_id_seq '.$db->db_last_error().'</strong><br>';
+		else
+			echo '<br>Created sequence: system.tbl_filters_id_seq';
+
+		// GRANT SELECT, UPDATE ON SEQUENCE system.tbl_filters_id_seq TO vilesci;
+		$qry = 'GRANT SELECT, UPDATE ON SEQUENCE system.tbl_filters_id_seq TO vilesci;';
+		if (!$db->db_query($qry))
+			echo '<strong>system.tbl_filters_id_seq '.$db->db_last_error().'</strong><br>';
+		else
+			echo '<br>Granted privileges to <strong>vilesci</strong> on system.tbl_filters_id_seq';
+
+		// GRANT SELECT, UPDATE ON SEQUENCE system.tbl_filters_id_seq TO fhcomplete;
+		$qry = 'GRANT SELECT, UPDATE ON SEQUENCE system.tbl_filters_id_seq TO fhcomplete;';
+		if (!$db->db_query($qry))
+			echo '<strong>system.tbl_filters_id_seq '.$db->db_last_error().'</strong><br>';
+		else
+			echo '<br>Granted privileges to <strong>vilesci</strong> on system.tbl_filters_id_seq';
+	}
+}
+
+// TABLE system.tbl_filters
+if (!@$db->db_query("SELECT 0 FROM system.tbl_filters WHERE 0 = 1"))
+{
+	$qry = '
+		CREATE TABLE system.tbl_filters (
+			filter_id integer NOT NULL DEFAULT nextval(\'system.tbl_filters_id_seq\'::regclass),
+			app character varying(32) NOT NULL,
+			dataset_name character varying(128) NOT NULL,
+			filter_kurzbz character varying(64) NOT NULL,
+			person_id integer,
+			description character varying(128)[] NOT NULL,
+			sort integer,
+			default_filter boolean DEFAULT FALSE,
+			filter jsonb NOT NULL,
+			oe_kurzbz character varying(16)
+		);';
+	if (!$db->db_query($qry))
+		echo '<strong>system.tbl_filters '.$db->db_last_error().'</strong><br>';
+	else
+		echo '<br>Created table system.tbl_filters';
+
+	// GRANT SELECT ON TABLE system.tbl_filters TO web;
+	$qry = 'GRANT SELECT ON TABLE system.tbl_filters TO web;';
+	if (!$db->db_query($qry))
+		echo '<strong>system.tbl_filters '.$db->db_last_error().'</strong><br>';
+	else
+		echo '<br>Granted privileges to <strong>web</strong> on system.tbl_filters';
+
+	// GRANT SELECT, UPDATE, INSERT, DELETE ON TABLE system.tbl_filters TO vilesci;
+	$qry = 'GRANT SELECT, UPDATE, INSERT, DELETE ON TABLE system.tbl_filters TO vilesci;';
+	if (!$db->db_query($qry))
+		echo '<strong>system.tbl_filters '.$db->db_last_error().'</strong><br>';
+	else
+		echo '<br>Granted privileges to <strong>vilesci</strong> on system.tbl_filters';
+
+	// COMMENT ON TABLE system.tbl_filters
+	$qry = 'COMMENT ON TABLE system.tbl_filters IS \'Table to manage filters\';';
+	if (!$db->db_query($qry))
+		echo '<strong>Adding comment to system.tbl_filters: '.$db->db_last_error().'</strong><br>';
+	else
+		echo '<br>Added comment to system.tbl_filters';
+
+	// COMMENT ON TABLE system.tbl_filters.app
+	$qry = 'COMMENT ON COLUMN system.tbl_filters.app IS \'Application which this filter belongs to\';';
+	if (!$db->db_query($qry))
+		echo '<strong>Adding comment to system.tbl_filters.app: '.$db->db_last_error().'</strong><br>';
+	else
+		echo '<br>Added comment to system.tbl_filters.app';
+
+	// COMMENT ON TABLE system.tbl_filters.dataset_name
+	$qry = 'COMMENT ON COLUMN system.tbl_filters.dataset_name IS \'Name that identifies the data set to be filtered\';';
+	if (!$db->db_query($qry))
+		echo '<strong>Adding comment to system.tbl_filters.dataset_name: '.$db->db_last_error().'</strong><br>';
+	else
+		echo '<br>Added comment to system.tbl_filters.dataset_name';
+
+	// COMMENT ON TABLE system.tbl_filters.filter_kurzbz
+	$qry = 'COMMENT ON COLUMN system.tbl_filters.filter_kurzbz IS \'Short description of the filter, unique for this application and this data set\';';
+	if (!$db->db_query($qry))
+		echo '<strong>Adding comment to system.tbl_filters.filter_kurzbz: '.$db->db_last_error().'</strong><br>';
+	else
+		echo '<br>Added comment to system.tbl_filters.filter_kurzbz';
+
+	// COMMENT ON TABLE system.tbl_filters.person_id
+	$qry = 'COMMENT ON COLUMN system.tbl_filters.person_id IS \'Person identifier which this filter belongs to. If null it is global\';';
+	if (!$db->db_query($qry))
+		echo '<strong>Adding comment to system.tbl_filters.person_id: '.$db->db_last_error().'</strong><br>';
+	else
+		echo '<br>Added comment to system.tbl_filters.person_id';
+
+	// COMMENT ON TABLE system.tbl_filters.description
+	$qry = 'COMMENT ON COLUMN system.tbl_filters.description IS \'Long description for this filter\';';
+	if (!$db->db_query($qry))
+		echo '<strong>Adding comment to system.tbl_filters.description: '.$db->db_last_error().'</strong><br>';
+	else
+		echo '<br>Added comment to system.tbl_filters.description';
+
+	// COMMENT ON TABLE system.tbl_filters.sort
+	$qry = 'COMMENT ON COLUMN system.tbl_filters.sort IS \'Indicates the order in which the filters appear in a list\';';
+	if (!$db->db_query($qry))
+		echo '<strong>Adding comment to system.tbl_filters.sort: '.$db->db_last_error().'</strong><br>';
+	else
+		echo '<br>Added comment to system.tbl_filters.sort';
+
+	// COMMENT ON TABLE system.tbl_filters.default_filter
+	$qry = 'COMMENT ON COLUMN system.tbl_filters.default_filter IS \'If it is the default filter for that data set\';';
+	if (!$db->db_query($qry))
+		echo '<strong>Adding comment to system.tbl_filters.default_filter: '.$db->db_last_error().'</strong><br>';
+	else
+		echo '<br>Added comment to system.tbl_filters.default_filter';
+
+	// COMMENT ON TABLE system.tbl_filters.filter
+	$qry = 'COMMENT ON COLUMN system.tbl_filters.filter IS \'Cointains json that define the filter\';';
+	if (!$db->db_query($qry))
+		echo '<strong>Adding comment to system.tbl_filters.filter: '.$db->db_last_error().'</strong><br>';
+	else
+		echo '<br>Added comment to system.tbl_filters.filter';
+
+	// COMMENT ON TABLE system.tbl_filters.oe_kurzbz
+	$qry = 'COMMENT ON COLUMN system.tbl_filters.oe_kurzbz IS \'Organisation unit which this filter belongs to. If null it is for all the organisation units\';';
+	if (!$db->db_query($qry))
+		echo '<strong>Adding comment to system.tbl_filters.oe_kurzbz: '.$db->db_last_error().'</strong><br>';
+	else
+		echo '<br>Added comment to system.tbl_filters.oe_kurzbz';
+
+	// ALTER SEQUENCE system.tbl_filters_id_seq OWNED BY system.tbl_filters.filter_id;
+	$qry = 'ALTER SEQUENCE system.tbl_filters_id_seq OWNED BY system.tbl_filters.filter_id;';
+	if (!$db->db_query($qry))
+		echo '<strong>system.tbl_filters_id_seq '.$db->db_last_error().'</strong><br>';
+	else
+		echo '<br>Altered sequence system.tbl_filters_id_seq';
+}
+
+// UNIQUE INDEX uidx_filters_app_dataset_name_filter_kurzbz
+if ($result = $db->db_query("SELECT 0 FROM pg_class WHERE relname = 'uidx_filters_app_dataset_name_filter_kurzbz'"))
+{
+	if ($db->db_num_rows($result) == 0)
+	{
+		$qry = 'CREATE UNIQUE INDEX uidx_filters_app_dataset_name_filter_kurzbz ON system.tbl_filters USING btree (app, dataset_name, filter_kurzbz);';
+		if (!$db->db_query($qry))
+			echo '<strong>uidx_filters_app_dataset_name_filter_kurzbz '.$db->db_last_error().'</strong><br>';
+		else
+			echo '<br>Created unique uidx_filters_app_dataset_name_filter_kurzbz';
+	}
+}
+
+// Add permission for filters
+if ($result = @$db->db_query("SELECT 1 FROM system.tbl_berechtigung WHERE berechtigung_kurzbz = 'system/filters';"))
+{
+	if ($db->db_num_rows($result) == 0)
+	{
+		$qry = "INSERT INTO system.tbl_berechtigung (berechtigung_kurzbz, beschreibung) VALUES('system/filters', 'To manage core filters');";
+		if (!$db->db_query($qry))
+			echo '<strong>system.tbl_berechtigung '.$db->db_last_error().'</strong><br>';
+		else
+			echo ' system.tbl_berechtigung: Added permission for filters<br>';
+	}
+}
+
+// FOREIGN KEY tbl_filters_app_fkey
+if ($result = $db->db_query("SELECT conname FROM pg_constraint WHERE conname = 'tbl_filters_app_fkey'"))
+{
+	if ($db->db_num_rows($result) == 0)
+	{
+		$qry = 'ALTER TABLE system.tbl_filters ADD CONSTRAINT tbl_filters_app_fkey FOREIGN KEY (app) REFERENCES system.tbl_app(app) ON UPDATE CASCADE ON DELETE RESTRICT;';
+		if (!$db->db_query($qry))
+			echo '<strong>tbl_filters_app_fkey '.$db->db_last_error().'</strong><br>';
+		else
+			echo '<br>Created foreign key tbl_filters_app_fkey';
+	}
+}
+
+// FOREIGN KEY tbl_filters_person_id_fkey
+if ($result = $db->db_query("SELECT conname FROM pg_constraint WHERE conname = 'tbl_filters_person_id_fkey'"))
+{
+	if ($db->db_num_rows($result) == 0)
+	{
+		$qry = 'ALTER TABLE system.tbl_filters ADD CONSTRAINT tbl_filters_person_id_fkey FOREIGN KEY (person_id) REFERENCES public.tbl_person(person_id) ON UPDATE CASCADE ON DELETE RESTRICT;';
+		if (!$db->db_query($qry))
+			echo '<strong>tbl_filters_person_id_fkey '.$db->db_last_error().'</strong><br>';
+		else
+			echo '<br>Created foreign key tbl_filters_person_id_fkey';
+	}
+}
+
+// FOREIGN KEY tbl_filters_oe_kurzbz_fkey
+if ($result = $db->db_query("SELECT conname FROM pg_constraint WHERE conname = 'tbl_filters_oe_kurzbz_fkey'"))
+{
+	if ($db->db_num_rows($result) == 0)
+	{
+		$qry = 'ALTER TABLE system.tbl_filters ADD CONSTRAINT tbl_filters_oe_kurzbz_fkey FOREIGN KEY (oe_kurzbz) REFERENCES public.tbl_organisationseinheit(oe_kurzbz) ON UPDATE CASCADE ON DELETE RESTRICT;';
+		if (!$db->db_query($qry))
+			echo '<strong>tbl_filters_oe_kurzbz_fkey '.$db->db_last_error().'</strong><br>';
+		else
+			echo '<br>Created foreign key tbl_filters_oe_kurzbz_fkey';
+	}
+}
+
+// End filters
+//---------------------------------------------------------------------------------------------------------------------
+
+
 // *** Pruefung und hinzufuegen der neuen Attribute und Tabellen
 echo '<H2>Pruefe Tabellen und Attribute!</H2>';
 
@@ -923,6 +1142,7 @@ $tabellen=array(
 	"system.tbl_benutzerrolle"  => array("benutzerberechtigung_id","rolle_kurzbz","berechtigung_kurzbz","uid","funktion_kurzbz","oe_kurzbz","art","studiensemester_kurzbz","start","ende","negativ","updateamum", "updatevon","insertamum","insertvon","kostenstelle_id","anmerkung"),
 	"system.tbl_berechtigung"  => array("berechtigung_kurzbz","beschreibung"),
 	"system.tbl_extensions" => array("extension_id","name","version","description","license","url","core_version","dependencies","enabled"),
+	"system.tbl_filters" => array("filter_id","app","dataset_name","filter_kurzbz","person_id","description","sort","default_filter","filter","oe_kurzbz"),
 	"system.tbl_phrase" => array("phrase_id","app","phrase","insertamum","insertvon"),
 	"system.tbl_phrasentext" => array("phrasentext_id","phrase_id","sprache","orgeinheit_kurzbz","orgform_kurzbz","text","description","insertamum","insertvon"),
 	"system.tbl_rolle"  => array("rolle_kurzbz","beschreibung"),