public function schema( array $sql )
	{
		$ctx = self::getContext();
		$dbm = $ctx->getDatabaseManager();
		$conn = $dbm->acquire();

		try
		{
			$tables = [];

			foreach( ['fe_users_', 'madmin_', 'mshop_'] as $prefix )
			{
				$result = $conn->create( 'SHOW TABLES like \'' . $prefix . '%\'' )->execute();

				while( ( $row = $result->fetch( \Aimeos\MW\DB\Result\Base::FETCH_NUM ) ) !== false ) {
					$tables[] = $row[0];
				}
			}

			foreach( $tables as $table )
			{
				$result = $conn->create( 'SHOW CREATE TABLE ' . $table )->execute();

				while( ( $row = $result->fetch( \Aimeos\MW\DB\Result\Base::FETCH_NUM ) ) !== false )
				{
					$str = preg_replace( '/,[\n ]*CONSTRAINT.+CASCADE/', '', $row[1] );
					$str = str_replace( '"', '`', $str );

					$sql[] = $str . ";\n";
				}
			}

			$dbm->release( $conn );
		}
		catch( \Exception $e )
		{
			$dbm->release( $conn );
		}


		return ['sqlString' => $sql ];
	}