Re: How to migrate column type from uuid to serial

On 10/7/20 6:58 AM, Hemil Ruparel wrote:

Please reply to list also.
Ccing list

> Yes. The id is stored as uuid. Thanks for the suggestion. Should work
>
>
> On Wed, Oct 7, 2020 at 7:27 PM Adrian Klaver <adrian.klaver@aklaver.com
> <mailto:adrian.klaver@aklaver.com>> wrote:
>
>     On 10/7/20 5:48 AM, Hemil Ruparel wrote:
>      > I was integrating a payment gateway for my app when I noticed its
>      > maximum length of customer id string is 32. SIze of UUID is 36 (32
>      > characters and 4 dashes). So I want to change the type of
>     customer id to
>      > serial. The problem is by now, the column is being used at many
>     places.
>      > How to migrate the column to serial without dropping the data?
>
>     Changing the size of the column is not an option?
>
>     Your description of the customer id column above is somewhat confusing
>     to me. Is the id actually stored as a UUID?
>
>     Why is the max length an issue?
>
>     If you where to migrate I would say create an independent
>     serial/identity column. Then point the dependent objects at that. After
>     all have been converted drop the old column.
>
>
>
>
>
>     --
>     Adrian Klaver
>     adrian.klaver@aklaver.com <mailto:adrian.klaver@aklaver.com>
>


--
Adrian Klaver
adrian.klaver@aklaver.com