Function addWindowFunction

bolt/core/PlanNode.cpp:1467–1493

  }
  return ROW(std::move(names), std::move(types));
}

void addWindowFunction(
    std::stringstream& stream,
    const WindowNode::Function& windowFunction) {
  stream << windowFunction.functionCall->toString() << " ";
  if (windowFunction.ignoreNulls) {
    stream << "IGNORE NULLS ";
  }
  auto frame = windowFunction.frame;
  if (frame.startType == WindowNode::BoundType::kUnboundedFollowing) {
    BOLT_USER_FAIL("Window frame start cannot be UNBOUNDED FOLLOWING");
  }
  if (frame.endType == WindowNode::BoundType::kUnboundedPreceding) {
    BOLT_USER_FAIL("Window frame end cannot be UNBOUNDED PRECEDING");
  }

  stream << WindowNode::windowTypeName(frame.type) << " between ";
  if (frame.startValue) {
    addKeys(stream, {frame.startValue});
    stream << " ";
  }
  stream << WindowNode::boundTypeName(frame.startType) << " and ";
  if (frame.endValue) {
    addKeys(stream, {frame.endValue});
    stream << " ";
  }
  stream << WindowNode::boundTypeName(frame.endType);
}