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From TuX RaceR <tuxrace...@gmail.com>
Subject Re: worth choosing the shortest possible column names/keys?
Date Sun, 14 Mar 2010 09:22:44 GMT
Thank you guys for your answers. I'll map descriptive names to short 
name too ;)
Cheers
TuX

Lars Francke wrote:
>> Will I save a lot of space (especially if I have many small columns)?
>>     
>
> I don't have any hard numbers for you but I tested it and I remember
> that on a dataset of about 10-20 GB I could save about 200-500 MB
> (this was with compression enabled) just by not using descriptive
> sting qualifiers that weren't data by itself. A lot of small columns
> for me too (mostly counters). I use a simple mapping of short byte
> arrays to strings so that it is still very easy to use in the client.
>
> I asked that very same question a few months ago on IRC but I think
> nobody answered so I'd be interested in what others do as well.
>
> Cheers,
> Lars
>   


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