Re: dblink_error_message return value

=?utf-8?q?PG_Doc_comments_form?= <noreply(at)postgresql(dot)org> writes:
> The following documentation comment has been logged on the website:
> Documentation says:

> Return Value
> Returns last error message, or an empty string if there has been no error in
> this connection.
> Which is invalid.
> Actually it returns 'OK' string if no error was raised.

Good catch! The code's quite clear about it, but the SGML docs need
fixed.

> Secondly
> dblink_is_busy must be first called to make dblink_error_message returns an
> error message. (Tested on 9.6.9)

Meh. I see what you're getting at here, I think, but that seems like a
completely wrong/misleading statement of the issue. Joe, can you think of
better phraseology?

regards, tom lane