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Re: Smaller data types use same disk space

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On 07/26/2012 07:12 AM, Tom Lane wrote:
It's more or less the same discussion. To do either one you need to decouple the internal column order from what the user sees. I do not think we'd bother with building the infrastructure involved if the only application were squeezing out alignment padding;

Is there any way to determine the amount of space lost to alignment padding within a row at the moment - without creation of dummy tables? I don't see any admin functions for determining the on-disk size of a row. Of course, I've been known to be hopelessly blind before.

--
Craig Ringer

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