Function populateLookupRows

bolt/exec/HashTable.cpp:2258–2267

namespace {
void populateLookupRows(
    const SelectivityVector& rows,
    raw_vector<vector_size_t>& lookupRows) {
  if (rows.isAllSelected()) {
    std::iota(lookupRows.begin(), lookupRows.end(), 0);
  } else {
    lookupRows.clear();
    rows.applyToSelected([&](auto row) { lookupRows.push_back(row); });
  }
}
} // namespace

template <bool ignoreNullKeys>