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From: Torsten Förtsch <[email protected]>
To: Rich Shepard <[email protected]>
Cc: [email protected]
Subject: Re: Accommodating alternative column values
Date: Wed, 3 Jul 2024 16:06:45 +0200
Message-ID: <CAKkG4_nEYBZriL9n1GiyEnutTAbLBuFg=sKzCENw40LXR-NgSQ@mail.gmail.com> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>
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The USING phrase basically answers the question how do I convert an
existing value of the old type to the new type.

On Wed, Jul 3, 2024 at 4:03 PM Rich Shepard <[email protected]>
wrote:

> On Wed, 3 Jul 2024, Rich Shepard wrote:
>
> > What I've tried:
> > bustrac=# alter table people alter column email set data type
> varchar(64) [];
> > ERROR:  column "email" cannot be cast automatically to type character
> > varying[]
> > HINT:  You might need to specify "USING email::character varying(64)[]".
>
> What I forgot to mention is that the current datatype is varchar(64) and I
> want to make it an array.
>
> Rich
>
>
>

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