ColinLeeo commented on code in PR #769:
URL: https://github.com/apache/tsfile/pull/769#discussion_r3056195862
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cpp/src/cwrapper/tsfile_cwrapper.cc:
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@@ -970,6 +970,79 @@ int fill_timeseries_statistic(storage::Statistic* st,
return common::E_OK;
}
+int fill_timeline_statistic(storage::ITimeseriesIndex* idx,
+ TimeseriesStatistic* out) {
+ clear_timeseries_statistic(out);
+ if (idx == nullptr) {
+ return common::E_OK;
+ }
+
+ auto* aligned_idx = dynamic_cast<storage::AlignedTimeseriesIndex*>(idx);
+ if (aligned_idx != nullptr && aligned_idx->time_ts_idx_ != nullptr &&
+ aligned_idx->time_ts_idx_->get_statistic() != nullptr) {
+ auto* st = aligned_idx->time_ts_idx_->get_statistic();
+ TsFileStatisticBase* b = tsfile_statistic_base(out);
+ b->has_statistic = true;
+ b->type = TS_DATATYPE_INVALID;
+ b->row_count = st->get_count();
+ b->start_time = st->start_time_;
+ b->end_time = st->get_end_time();
+ return common::E_OK;
+ }
+
+ if (idx->get_statistic() != nullptr && idx->get_time_chunk_meta_list() ==
nullptr) {
+ auto* st = idx->get_statistic();
+ TsFileStatisticBase* b = tsfile_statistic_base(out);
+ b->has_statistic = true;
+ b->type = TS_DATATYPE_INVALID;
+ b->row_count = st->get_count();
+ b->start_time = st->start_time_;
+ b->end_time = st->get_end_time();
+ return common::E_OK;
+ }
+
+ auto* list = idx->get_time_chunk_meta_list();
+ if (list == nullptr) {
+ list = idx->get_chunk_meta_list();
+ }
+ if (list == nullptr) {
+ return common::E_OK;
+ }
+
+ int64_t row_count = 0;
+ int64_t start_time = 0;
+ int64_t end_time = 0;
+ bool has_statistic = false;
+ for (auto it = list->begin(); it != list->end(); it++) {
+ auto* chunk_meta = it.get();
+ if (chunk_meta == nullptr || chunk_meta->statistic_ == nullptr ||
+ chunk_meta->statistic_->count_ <= 0) {
+ continue;
+ }
+ if (!has_statistic) {
+ start_time = chunk_meta->statistic_->start_time_;
+ end_time = chunk_meta->statistic_->end_time_;
+ has_statistic = true;
+ } else {
+ start_time = std::min(start_time,
chunk_meta->statistic_->start_time_);
+ end_time = std::max(end_time, chunk_meta->statistic_->end_time_);
+ }
+ row_count += chunk_meta->statistic_->count_;
+ }
+
+ if (!has_statistic) {
+ return common::E_OK;
+ }
+
+ TsFileStatisticBase* b = tsfile_statistic_base(out);
+ b->has_statistic = true;
+ b->type = TS_DATATYPE_INVALID;
+ b->row_count = row_count;
Review Comment:
Should be int64/ timestamp.
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