Re: UPDATE syntax

David Greco wrote:
> Need some help with UPDATE syntax. I am attempting to do something
like this:
>
> WITH default_facility AS (
> SELECT facility_id,
> inkjetorlabel
> FROM engagement_facility_defs
> WHERE engagement_facility_def_id = 8
> )
> UPDATE engagement_facilities SET (
> facility_id,
> inkjetorlabel
> )
> = ( default_facility.* )
> FROM default_facility
> WHERE engagement_facilities.engagement_id =3
>
> Postgres errors out on the SET() saying "number of columns does not
match number of values". Also
> tried default_facility.* without the parenthesis but it does not like
that syntax. This example is a
> bit simplified, in reality there are 90 columns in both lists.
>
> Is this syntax not possible? I have rewritten it to this form which
works, but I rather like the CTE
> syntax instead.

The problem seems to be the "*".
It works fine with CTE otherwise:

CREATE TABLE test (id integer primary key, val text);
INSERT INTO test VALUES (1, 'something');

WITH cte AS (SELECT 1 AS c1, 'other' AS c2)
UPDATE test SET (id, val) = (cte.c1, CTE.c2)
FROM cte
WHERE id=1;

Yours,
Laurenz Albe