The syntax for this type of clause consists of the function (function) and its arguments:
"function(’function_arguments’)"
The functions are pre-defined. For the descriptions of functions, see the "Function definitions" section in Functions.
> ccm query "has_predecessor(’ico-1:executable:2’)"
> ccm delete @
> ccm query "type=’wdt’"
Here is the built-in shortcut for this command:
> ccm query -type wdt