Introspection

Subtopics

EdgeQL Tutorial

Introspection

All objects in EdgeDB have a __type__ link which points to the schema type that the object is actually implementing. This can be used for introspection queries or to just add the object type information to a query. Let's fetch all media with their ids and corresponding types:

Input

Run

select Content {
  id,
  __type__: {
    name
  }
};

select Content {
  id,
  __type__: {
    name
  }
};

Output Objects

Press the 'Run' button to evaluate the input

Note that this is different from introspect as it provides run-time type information for concrete objects, whereas the introspect expression is resolving types statically. Compare this usage of introspect to the previous query:

Input

Run

select introspect Content {
  name
};

select introspect Content {
  name
};

Output Objects

Press the 'Run' button to evaluate the input

Prev Next

We use ChatGPT with additional context from our documentation to answer your questions. Not all answers will be accurate. Please join our Discord if you need more help.