refactor(interpreter): aggreagator batching

Optimize calls to potentially costly aggregators by only extracting the value
from a stateful aggregator when it is needed by subsequent RETE nodes.

This optimization only works with timeless evaluation and delete-and-rederive
evaluation disabled, i.e., only for queries without any recursion. Potentially,
it could also be extended to other mailboxes if needed.

We replace the BehaviorChangingMailbox of ColumnAggregatorNode with a
DefaultMailbox to force update batching. Batched updates only extract the value
from the aggregator when it has been already updated with all received tuples.

0 files changed, 0 insertions, 0 deletions