Doubts

[Maira Stella da Silva]

Hello,

I'm a computer science brazilian student, and now I and my friend are searching about Project Voldemort. We are with some doubts about the key-value database. We would like to know how to get all the data, and how the database is organized.

We tried the commands:

put "hello" "world"

put "hello" "day"

And after, we tried to get all the values, but the Voldemort shows only the last value.

How can we insert more than one value?

How could be a "select" in the project Voldemort?

Regards,

Maira Stella da Silva

[Geir Magnusson Jr.]

have no doubts! :)

Voldemort is doing the right thing - it keeps one value for each key.

So when you did :

put "hello" "world"

and then asked for the value of "hello" you would have gotten "world"

When you then did

put "hello" "day"

you replaced "hello" with "day"...

geir

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[Geir Magnusson Jr.]

On Nov 20, 2012, at 8:52 PM, "Geir Magnusson Jr." <ge...@pobox.com> wrote:

> have no doubts! :)
>
> Voldemort is doing the right thing - it keeps one value for each key.
>
> So when you did :
>
> put "hello" "world"
>
> and then asked for the value of "hello" you would have gotten "world"
>
> When you then did
>
> put "hello" "day"
>
> you replaced "hello" with "day"...

whoops...

you replaced "world" with "day"...

[Carlos Tasada]

Hi Maira,

You must think of Voldemort as a Key-Value system, something like a distributed Map. As Geir said, it's doing the correct thing.

Regards,