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Re: pg_restore - generated column - not populating

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I used the following commands for dump

pg_dump -c mydb | gzip -9 > mydb.gz
pg_dump -C -Fc mydb > mydb.backup
pg_dump -Ft mydb > mydb.tar

For restore, I created a blank database by issuing the command "createdb mydb" and then tried

gunzip -c mydb.gz | psql mydb
pg_restore -d mydb mydb.backup
pg_restore -Ft -d mydb mydb.backup 

I have tried -c, -C, schema only etc but nothing has worked so far.

I didn't check the Postgres logs. Thanks for the suggestion. I will check that.



On Mon, Feb 22, 2021 at 5:16 PM Adrian Klaver <adrian.klaver@xxxxxxxxxxx> wrote:
On 2/22/21 5:08 PM, Santosh Udupi wrote:
> Hi all,
>
> My database has tables with generated columns. I altered a table and
> added a generated column as below:
>
>     alter table billing add primary_bill_to_id int   GENERATED ALWAYS as
>     ((info->>'vp')::int) stored
>
>
> Now, when I do the pg_dump and pg_restore, this column does not get
> populated. It remains null
>
> "Info" is the jsonb column in the table and info->>'vp' has values in
> multiple rows but still generated column "primary_bill_to_id" is null
> after the restore
>
> I am using postgres version 13
>
> Can you tell me what am I missing?

Without the commands you used to do the dump and restore it will be
difficult to come to any conclusions. It would also be helpful to look
at the Postgres logs from the restore to see if there are any error
messages.

>
> Thank you for your help.
> Santosh
>


--
Adrian Klaver
adrian.klaver@xxxxxxxxxxx

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