create view ... select fld,'constant',fld ...

is this a stupid idea?

    create table _kid (
        id serial,
        datum varchar(80),
        other bigint,
        -- many-to-one, kid-to-papa relation
        parent int4 references papa(id)
    );

    create view kid as
    select
        id,
        datum,
        other,
        parent,
        -- which table is our parent? right here:
        'papa' as parent_table
    from
        _kid;

then we can do things like

    ->execute("select parent_table from $table")

but is it a performance-sucker? or bandwidth-killer? or just
all-round horrid idea?

or not?

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