Re: How do I upsert depending on a second table?

[Adrian Klaver]

On 9/23/25 13:36, Samuel Marks wrote:

Attempt:
```sql
CREATE TABLE org
(
     "name"      VARCHAR(50) PRIMARY KEY,
     owner       VARCHAR(50) NOT NULL
);

CREATE TABLE repo
(
     "id"           INTEGER PRIMARY KEY,
     full_name      VARCHAR(255) UNIQUE NOT NULL,
     org            VARCHAR(50)         NOT NULL REFERENCES org ("name")
);

INSERT INTO org(name, owner) VALUES ('org0', 'user0');

INSERT INTO repo (id, full_name, org)
VALUES (0, 'org0/name0 by wrong user', 'org0')
ON CONFLICT (full_name) DO UPDATE
     SET full_name = EXCLUDED.full_name,
         org       = EXCLUDED.org
WHERE EXISTS (SELECT 1
               FROM org org_tbl
               WHERE org_tbl.name = EXCLUDED.org
                 AND org_tbl.owner = 'wrong user')

Where is org_tbl?

Or is this a copy and paste error?

RETURNING *;

SELECT * FROM repo WHERE id = 0;
```

This all succeeds. It should fail because the 'wrong user' is trying
to create a new—or update an existing—repo.

Thanks for all suggestions

--
Adrian Klaver
adrian.kla...@aklaver.com