Proposal: keep key and value into memory

[0x5487]

Scenario:
When building a low-latency service, people would like to keep all key and values in memory. This way will reduce one disk IO to fetch value.

Proposal:
we can create a new option. For example, the Mode field has two options.

1. KeyOnly
2. KeyAndValue

// Options specifies the options for opening a database.
type Options struct {
    Mode: KeyAndValue
}

[roseduan]

Thanks, are you already using rosedb in production?
I can add this feature in the next release.

[0x5487]

No, not yet. we are still investigating.

[roseduan]

No, not yet. we are still investigating.

Hello, are you still investigating?