Function WriteEvent

be/src/exec/system-table-scanner.cc:168–173

}

static void WriteEvent(const QueryStateExpanded& query, const SlotDescriptor* slot_desc,
    void* slot, QueryEvent name) {
  const auto& event = query.events.find(name);
  DCHECK(event != query.events.end());
  WriteDecimalSlot(slot_desc->type(), event->second / NANOS_TO_MILLIS, slot);
}

Status QueryScanner::MaterializeNextTuple(
    MemPool* pool, Tuple* tuple, const TupleDescriptor* tuple_desc) {