Function AppendTimestampBatch

cpp/src/arrow/adapters/orc/util.cc:199–226

}

Status AppendTimestampBatch(liborc::ColumnVectorBatch* column_vector_batch,
                            int64_t offset, int64_t length, ArrayBuilder* abuilder) {
  auto builder = checked_cast<TimestampBuilder*>(abuilder);
  auto batch = checked_cast<liborc::TimestampVectorBatch*>(column_vector_batch);

  const int64_t* seconds = batch->data.data() + offset;
  const int64_t* nanos = batch->nanoseconds.data() + offset;

  const bool has_nulls = batch->hasNulls;
  RETURN_NOT_OK(builder->Reserve(length));
  for (int64_t i = 0; i < length; i++) {
    if (has_nulls && !batch->notNull[offset + i]) {
      builder->UnsafeAppendNull();
      continue;
    }
    // A timestamp past ~year 2262 does not fit in int64 nanoseconds; computing
    // it with a bare `seconds * kOneSecondNanos` is signed overflow.
    int64_t value;
    if (ARROW_PREDICT_FALSE(
            internal::MultiplyWithOverflow(seconds[i], kOneSecondNanos, &value) ||
            internal::AddWithOverflow(value, nanos[i], &value))) {
      return Status::Invalid("ORC timestamp (", seconds[i], "s + ", nanos[i],
                             "ns) is out of range for nanosecond resolution");
    }
    builder->UnsafeAppend(value);
  }
  return Status::OK();
}

template <class BuilderType>
Status AppendBinaryBatch(liborc::ColumnVectorBatch* column_vector_batch, int64_t offset,