ExprAggregateNode aggregateNode = aggregation.getAggregationNode();
if (!aggregateNode.getFactory().isAccessAggregation()) {
continue;
}
AggregationStateKey providerKey = aggregateNode.getFactory().getAggregationStateKey(false);
AggregationAccessor accessor = aggregateNode.getFactory().getAccessor();
Integer slot = accessProviderSlots.get(providerKey);
if (slot == null) {
accessProviderSlots.put(providerKey, currentSlot);