Function createAllNullsVector

bolt/vector/tests/VectorTest.cpp:1283–1317

}

VectorPtr createAllNullsVector(
    const TypePtr& type,
    vector_size_t size,
    memory::MemoryPool* pool) {
  auto kind = type->kind();
  switch (kind) {
    case TypeKind::ROW: {
      std::vector<VectorPtr> children(type->size(), nullptr);
      return std::make_shared<RowVector>(
          pool, type, allocateNulls(size, pool, bits::kNull), size, children);
    }
    case TypeKind::ARRAY:
      return std::make_shared<ArrayVector>(
          pool,
          type,
          allocateNulls(size, pool, bits::kNull),
          size,
          allocateSizes(size, pool),
          allocateSizes(size, pool),
          nullptr);
    case TypeKind::MAP:
      return std::make_shared<MapVector>(
          pool,
          type,
          allocateNulls(size, pool, bits::kNull),
          size,
          allocateSizes(size, pool),
          allocateSizes(size, pool),
          nullptr,
          nullptr);
    default:
      return BOLT_DYNAMIC_SCALAR_TYPE_DISPATCH(
          createAllNullsFlatVector, kind, size, pool, type);
  }
}

TEST_F(VectorTest, copyFromAllNulls) {
  vector_size_t size = 1'000;