Method evalSimplifiedImpl

bolt/expression/Expr.cpp:515–562

}

void Expr::evalSimplifiedImpl(
    const SelectivityVector& rows,
    EvalCtx& context,
    VectorPtr& result) {
  // Handle special form expressions.
  if (isSpecialForm()) {
    evalSpecialFormSimplified(rows, context, result);
    return;
  }

  MutableRemainingRows remainingRows(rows, context);
  const bool defaultNulls = vectorFunction_->isDefaultNullBehavior();
  auto evalArg = [&](int32_t i) {
    auto& inputValue = inputValues_[i];
    inputs_[i]->evalSimplified(remainingRows.rows(), context, inputValue);
    BaseVector::flattenVector(inputValue);
    BOLT_CHECK(
        inputValue->encoding() == VectorEncoding::Simple::FLAT ||
        inputValue->encoding() == VectorEncoding::Simple::ARRAY ||
        inputValue->encoding() == VectorEncoding::Simple::MAP ||
        inputValue->encoding() == VectorEncoding::Simple::ROW ||
        inputValue->encoding() == VectorEncoding::Simple::FUNCTION);
  };

  if (defaultNulls) {
    if (!evalArgsDefaultNulls(remainingRows, evalArg, context, result)) {
      return;
    }
  } else {
    if (!evalArgsWithNulls(remainingRows, evalArg, context, result)) {
      return;
    }
  }

  // Apply the actual function.
  try {
    vectorFunction_->apply(
        remainingRows.rows(), inputValues_, type(), context, result);
  } catch (const BoltException& ve) {
    throw;
  } catch (const std::exception& e) {
    BOLT_USER_FAIL(e.what());
  }

  // Make sure the returned vector has its null bitmap properly set.
  addNulls(rows, remainingRows.rows().asRange().bits(), context, result);
  releaseInputValues(context);
}

namespace {