如何在MySQL Connector/C++8.0中使用DATETIME？

我使用的是mysql-connector-cpp-8.0.18

Mysql结果存储是类型为mysqlx:：Value的变量

我应该如何使用DATETIME？

我在上找到了答案

解决方案是解析原始数据。它使用

解码的简单示例：

uint64_t DecodeOne(uint8_t * in , size_t * len) {
  uint64_t r = 0;

  do {
    uint64_t val = * in ;
    r = (r << 7) | (uint64_t)(val & 127); in ++;
    ( * len) --;
  } while (( * len > 0) && (uint64_t( * in ) & 128));

  return r;
}

void DecodeBuffer(uint8_t * buffer, size_t size) {
  std::vector < uint8_t > reverseBuffer;
  for (size_t i = 1; i <= size; i++) {
    reverseBuffer.push_back(buffer[size - i]);
  }

  size_t tmpSize = size;
  uint8_t * reverseData = reverseBuffer.data();

  while (tmpSize > 0) {
    std::cout << DecodeOne( & reverseData[size - tmpSize], & tmpSize) << " ";
  }
  std::cout << "\n";
}

mysqlx_get_bytes(row, idx, 0, data, size);
DecodeBuffer(data, size);

std::pair <
  const unsigned char * , size_t > res = value.getRawBytes();
DecodeBuffer(res.first, res.second);

但mysql-connector-CPP-8.0.18中的CPP API中存在漏洞

CPP结果不包含秒。因此，只使用c api是可能的

uint64_t DecodeOne(uint8_t * in , size_t * len) {
  uint64_t r = 0;

  do {
    uint64_t val = * in ;
    r = (r << 7) | (uint64_t)(val & 127); in ++;
    ( * len) --;
  } while (( * len > 0) && (uint64_t( * in ) & 128));

  return r;
}

void DecodeBuffer(uint8_t * buffer, size_t size) {
  std::vector < uint8_t > reverseBuffer;
  for (size_t i = 1; i <= size; i++) {
    reverseBuffer.push_back(buffer[size - i]);
  }

  size_t tmpSize = size;
  uint8_t * reverseData = reverseBuffer.data();

  while (tmpSize > 0) {
    std::cout << DecodeOne( & reverseData[size - tmpSize], & tmpSize) << " ";
  }
  std::cout << "\n";
}

mysqlx_get_bytes(row, idx, 0, data, size);
DecodeBuffer(data, size);

std::pair <
  const unsigned char * , size_t > res = value.getRawBytes();
DecodeBuffer(res.first, res.second);