Size of empty varchar and size of index

From: Achim Luber <luber(at)4soft(dot)de>
To: pgsql-performance(at)postgresql(dot)org
Subject: Size of empty varchar and size of index
Date: 2005-07-21 10:02:18
Message-ID: 42DF72AA.3090207@4soft.de
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Hello,
I'm searching for two facts:
How much space takes a varchar column if there is no value in it (NULL)?
How much space needs a index of an integer column?
Hope I post to the right list and hope anybody can help me.
Thank you
Greetings
Achim

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