It should handle int64 properly

[shanghaikid]

Describe the feature:
Node doesn't support int64, it will parse int64(defined in the protobuf file) to string. The SDK should handle this situation since most of the fields will not exceed the limit of int32.

[shanghaikid]

#279

[shanghaikid]

Usage

const longClient = new MilvusClient({
  address: IP,
  loaderOptions: { longs: Function },
});

Data returned:

 {
        json: { string: 'HGa', float: 0.020460665868316408, number: 15222 },
        id: Long { low: 1228037498, high: 1811489737, unsigned: false },
        varChar_array: [ 'Eesfo', 'apple', 'orange', 'O' ],
        int64: Long { low: 996449586, high: 800717565, unsigned: false }
      },
      {
        json: { string: 'orange', float: 0.43789397308881695, number: 4139 },
        id: Long { low: 1305978112, high: 1831617625, unsigned: false },
        varChar_array: [ 'apple', 'QP', 'orange', 'lB8' ],
        int64: Long { low: 897979946, high: 1652577907, unsigned: false }
      },
      {
        json: {},
        id: Long { low: 1527160501, high: 2047027582, unsigned: false },
        varChar_array: [ 'orange', 'T7K7oT', 'w', 'apple' ],
        int64: Long { low: 232075865, high: 1912830474, unsigned: false }
      }

You can use long.js or BigInt to parse the int64 format.