Function dataset___Scanner__head

r/src/dataset.cpp:523–527

[[dataset::export]]

// [[dataset::export]]
std::shared_ptr<arrow::Table> dataset___Scanner__head(
    const std::shared_ptr<ds::Scanner>& scanner, int n) {
  // TODO: make this a full Slice with offset > 0
  return ValueOrStop(scanner->Head(n));
}

// [[dataset::export]]
std::shared_ptr<arrow::Schema> dataset___Scanner__schema(