Altering columns without losing data

From: "G" <gerard(at)interfold(dot)com>
To: <pgsql-novice(at)postgresql(dot)org>
Subject: Altering columns without losing data
Date: 2002-05-09 18:11:18
Message-ID: ILEPLGCLIJOCNINEJCJPMELDDJAA.gerard@interfold.com
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Hello,

Is there a way to change a column's data type without removing and adding it
(and losing data)? Such as changing the text length for a column.

Thanks,
Gerard

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