UpsertTyped possibly(?) meaningless about go-tarantool HOT 2 CLOSED

Typed suffix means typed deserialization, the way msgpack decodes a stream into the passed interface.
Typically structure is a list of tuples, but in general an arbitrary structure may be returned.
You need to consult to tarantool docs about data structure any particular method may return.

from go-tarantool.

Typed suffix means typed deserialization, the way msgpack decodes a stream into the passed interface.

Yes, I understand what the suffix means and have consulted Tarantool docs:

https://tarantool.org/doc/book/box/box_space.html#box-space-upsert

However, unlike insert or update, upsert will not read a tuple and perform error checks before returning -- this is a design feature which enhances throughput but requires more caution on the part of the user.

Return: null

In other words:

Tarantool's "upsert" operation, by design, always returns "nil".

Never returns a tuple.

For upsert, there is nothing to decode and nothing to return, "res" will always remain "nil".

But having UpsertTyped method makes it seem that upsert returns something which it does not.

Confusing. Misleading.

from go-tarantool.