ObservableQuery

Update the variables of this observable query, and fetch the new results. This method should be preferred over setVariables in most use cases.

This is for internal use only. Most users should instead use refetch in order to be properly notified of results even when they come from cache.

Update the variables of this observable query, and fetch the new results if they've changed. If you want to force new results, use refetch.

Note: the next callback will not fire if the variables have not changed or if the result is coming from cache.

Note: the promise will return the old results immediately if the variables have not changed.

Note: the promise will return null immediately if the query is not active (there are no subscribers).

The current status of a query’s execution in our system.