presto-main/src/main/java/io/prestosql/operator/OperatorContext.java/InternalAggregatedMemoryContext/newLocalMemoryContext
class InternalAggregatedMemoryContext:        @Override
        public LocalMemoryContext newLocalMemoryContext(String allocationTag)
        {
            return new InternalLocalMemoryContext(delegate.newLocalMemoryContext(allocationTag), memoryFuture, allocationListener, true);
        }