Re: Changing column data type on an existing table

> Joe Audette wrote:
>
> Hi,
>
> I have an app that I released with a particular field
> as varchar 255.
>
> Can someone give me a script example I can use to make
> an upgrade script to change it to text or at least to
> larger varchar without losing existing data?
>
> I support 3 different dbs in my app, Postgre is the
> newest and least familiar to me but I am trying to
> learn.
>
> Any help much appreciated.
>
> Joe Audette

In v8 at least, you can issue:
alter TABLE <tablename> ALTER <column_name> TYPE text;


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