On 2022-02-10 18:22:29 +0100, Peter J. Holzer wrote:
> On 2022-02-09 21:14:39 -0800, Guyren Howe wrote:
> > • SELECT * - b.a_id from a natural join b
> > □ let me describe a select list by removing fields from a relation. In
> > the example, I get all fields in the join of a and b other than the
> > shared key, which I only get once.
>
> Natural join already does this.
>
> My use case for such a feature are tables which contain one column (or a
> small number of columns) which you usually don't want to select: A bytea
> column or a very wide text column. In a program I don't mind (in fact I
> prefer) listing all the columns explicitely, but exploring a database
> interactively with psql typing lots of column names is tedious
> (especially since autocomplete doesn't work here).
Forgot to add: I think that the syntax would have to be more explicit.
It's too easy to mix up
SELECT * - b.a_id FROM ...
and
SELECT *, - b.a_id FROM ...
Maybe
SELECT * EXCEPT b.a_id FROM ...
?
hp
--
_ | Peter J. Holzer | Story must make more sense than reality.
|_|_) | |
| | | hjp@xxxxxx | -- Charles Stross, "Creative writing
__/ | http://www.hjp.at/ | challenge!"
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