The context that the repeated sub-operations will be executed in.
A name for what is being repeated, such as bindings or exists.
Optionalactor: stringThe name of the actor that repeats the sub-operations.
Optionaloperation: anyThe operation that is evaluated repeatedly, if the actor repeats more than one.
Group the sub-operations that will be executed within the returned context under a single node of the physical query plan, so that repeated evaluations are summarized rather than listed next to the actual inputs.
Calling this again for the same repetition yields the same group, so callers need not remember it. The given context is returned unchanged when no physical query plan is being logged.