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From sudhir patil <spatil.sud...@gmail.com>
Subject Re: Is possible make bidirectional map key<->value?
Date Sun, 08 Oct 2017 00:05:47 GMT
What do you mean backward? is it like given index get map address?

On Sat, Oct 7, 2017 at 9:57 PM, Andrzej <borucki_andrzej@wp.pl> wrote:

> Is possible such thing:?
> two columns: first is bitcoin address, second is index 1,2,3..(0 is
> reserved for no_found)
> map address->index:
> we get row with address and have index; if not found address we add new
> row with index computed by:
> - max (index)+1
> or
> -size table +1
> If possible fast read this?
>
> And backward: we have index and we must get row with index.
> Is something like "natural index" = 0,1,2,3.... ?
>

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