Function refineBooleanMixNonNull

bolt/expression/BooleanMix.cpp:37–48

Checks if bits in specified positions are all set, all unset or mixed.

/// Checks if bits in specified positions are all set, all unset or mixed.
BooleanMix refineBooleanMixNonNull(
    const uint64_t* bits,
    const SelectivityVector& rows) {
  int32_t first = bits::findFirstBit(bits, rows.begin(), rows.end());
  if (first < 0) {
    return BooleanMix::kAllFalse;
  }
  if (first == rows.begin() && bits::isAllSet(bits, rows.begin(), rows.end())) {
    return BooleanMix::kAllTrue;
  }
  return BooleanMix::kMixNonNull;
}
} // namespace

// Return a BooleanMix representing the status of boolean values in vector. If