Re: Are there plans to add data compression feature to postgresql?

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От Grzegorz Jaśkiewicz
Тема Re: Are there plans to add data compression feature to postgresql?
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Msg-id 2f4958ff0810290835x52bb02f7vab6eed5306027213@mail.gmail.com
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Ответ на Re: Are there plans to add data compression feature to postgresql?  (小波 顾 <guxiaobo1982@hotmail.com>)
Ответы Re: Are there plans to add data compression feature to postgresql?  (小波 顾 <guxiaobo1982@hotmail.com>)
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2008/10/29 小波 顾 <guxiaobo1982@hotmail.com>
1. Little integers of types take 8 bytes in the past now only take 4 or 2 bytes if there are not so large.
So what actually happen if I have a table with few mills of values that fit in 2 bytes, but all of the sudent I am going to add another column with something that requires 8 bytes ? update on all columns ? I am actually even against varchars in my databases, so something like that sounds at least creepy.
 
--
GJ

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