Feature request: return found keys without values

[davies]

Sometimes, we may just want the list of keys, then fetch the value for selected ones. The current API will return both keys and values, which is very slow if value is large.

[disksing]

Hi @davies , if you are using the txn API, you can try the KeyOnly option:

client-go/txnkv/txn.go

Line 166 in a3ebdb0

case kv.KeyOnly:

[davies]

We are using the rawkv API, can we mixed them (only use txn API to scan) ?

[disksing]

They cannot be used in same cluster together. It is possible to support some options for rawkv api, the problems is that is it not on our roadmap. I'd like to create a help-needed issue for now. You may consider lend a hand if too :-)

[Connor1996]

Once tikv/tikv#7614 finished, you can leverage it to reduce io cost.

[disksing]

Looks it is cancelled on server side. closing the issue.