Re: Accommodating alternative column values

You could try

ALTER TABLE ... SET TYPE TEXT[] USING ARRAY[email]::TEXT[]

something along these lines.

On Wed, Jul 3, 2024 at 3:58 PM Rich Shepard <rshepard(at)appl-ecosys(dot)com>
wrote:

> On Tue, 2 Jul 2024, Christophe Pettus wrote:
>
> > To be clear, I wasn't suggesting stuffing them all into a text column
> with
> > a delimiter, but storing them in a text *array* field, each email address
> > one component of the array.
>
> Christophe,
>
> I'm not using the proper syntax and the postgres alter table doc has no
> example in the alter column choices.
>
> 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)[]".
>
> How do I incorporate the "USING email::..." string?
>
> TIA,
>
> Rich
>
>
>