Function mayUseValueIds

bolt/exec/HashTable.cpp:1804–1814

namespace {
bool mayUseValueIds(const BaseHashTable& table) {
  if (table.hashMode() == BaseHashTable::HashMode::kHash) {
    return false;
  }
  for (auto& hasher : table.hashers()) {
    if (!hasher->mayUseValueIds()) {
      return false;
    }
  }
  return true;
}
} // namespace

template <bool ignoreNullKeys>