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Re: Changing data types

From: Hannu Krosing <hannu(at)tm(dot)ee>
To: "Gowey, Geoffrey" <ggowey(at)rxhope(dot)com>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: Changing data types
Date: 2001-09-24 15:03:38
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Lists: pgsql-hackers
"Gowey, Geoffrey" wrote:
> I posted this in my last message, but have not heard anything yet so I'm
> wondering if it was overlooked.  I need to know how to change a column from
> being say a varchar(9) to an integer.  Does anyone know how to change the
> data type?

create temptable
 as select col_a, col_b, varchar9col_c::int, col_d from originaltable

drop table originaltable;

alter table temptable rename to originaltable;

and then create all indexes and constraints.


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