> On Oct 26, 2021, at 9:58 AM, Rich Shepard <rshep...@appl-ecosys.com> wrote:
>
> In a database table I have these rows:
> # select * from contacts where person_nbr=6;
> person_nbr | contact_date | contact_type |
> not
> es | next_contact
> ------------+--------------+--------------+---------------------------------------------------------
> ---------------------------------------------------------+--------------
> 6 | 2018-04-05 | Phone | Left message @ 9:39.
> |
> 6 | 2019-05-14 | Phone | He can call me if issues do come
> up. |
> 6 | 2021-08-17 | Email | Sent message 2.
> | 2021-10-06
> 6 | 2021-07-23 | Email | Sent message 1.
> | 2021-07-28
> 6 | 2021-07-28 | Email | Sent message 1.
> | 2021-08-16
> (5 rows)
>
> When I try to update this table with:
> (6,'2021-10-26','Email','message 3','2012-11-16'),
> psql reports this error:
> psql:insert_into_contacts.sql:31: ERROR: duplicate key value violates unique
> constraint "activities_pkey"
> DETAIL: Key (person_nbr, contact_date, contact_type)=(6, 2021-10-26, Email)
> already exists.
>
> The PK for this table is:
> PRIMARY KEY, btree (person_nbr, contact_date, contact_type)
> so there should be no conflict as the contact_date in the update is not
> already in the table.
>
> I don't understand the error as it's not occurred before when updating this
> table.
>
> Insight needed,
>
> Rich
>
>
What do you get when you select * where person_nbr = 6 and contact_date =
‘2021-10-26’ and contact_type = ‘Email’ from activities; ?
