Method directAddRows

bolt/exec/HashTable.cpp:2271–2301

template <bool ignoreNullKeys>
void HashTable<ignoreNullKeys>::directAddRows(
    HashLookup& lookup,
    const RowVectorPtr& input,
    SelectivityVector& rows,
    bool decodeAndRemoveNulls) {
  auto& hashers = lookup.hashers;

  // TODO: replace this later
  for (auto& hasher : hashers) {
    auto key = input->childAt(hasher->channel())->loadedVector();
    hasher->decode(*key, rows);
  }

  if (decodeAndRemoveNulls) {
    // A null in any of the keys disables the row.
    deselectRowsWithNulls(hashers, rows);
  }

  lookup.reset(rows.end());
  populateLookupRows(rows, lookup.rows);

  incrementProbes(lookup.rows.size());
  // insert new entry
  for (const auto& row : lookup.rows) {
    char* group = rows_->newRow();
    lookup.hits[row] = group; // NOLINT
    storeKeys(lookup, row);
    ++numDistinct_;
    lookup.newGroups.push_back(row);
  }
}

void BaseHashTable::prepareForGroupProbe(
    HashLookup& lookup,