Re: operator does not exist: smallint <> smallint[]

Euler Taveira de Oliveira <euler(at)timbira(dot)com> writes:
> I saw a report at .br mailing list [1] complaining about the message's title.
> I do not try to investigate it. Am I missing something?

> euler=# select attname from pg_attribute where attnum > 0 and attnum <>
> ALL(select conkey from pg_constraint where conrelid = attrelid and contype = 'p');
> ERROR: operator does not exist: smallint <> smallint[]

It's entirely right: there's no such operator.

Oh, you wanted a way to write the query correctly? I think what this
person wants might be something like

select attname from pg_attribute where attnum > 0 and not attisdropped
and not exists (select 1 from pg_constraint where attnum = ANY(conkey)
and conrelid = attrelid and contype = 'p');

... although that produces quite a lot of rows, so some additional
constraint is probably wanted too.

regards, tom lane