Method InputFinished

cpp/src/arrow/acero/pivot_longer_node.cc:190–195

  const char* kind_name() const override { return "PivotLongerNode"; }

  Status InputFinished(ExecNode* input, int total_batches) override {
    DCHECK_EQ(input, inputs_[0]);
    EVENT_ON_CURRENT_SPAN("InputFinished", {{"batches.length", total_batches}});
    return output_->InputFinished(
        this, total_batches * static_cast<int>(options_.row_templates.size()));
  }

  Status StartProducing() override {
    NoteStartProducing(ToStringExtra());