<eikenberg@golze.de> wrote:
=20
> INSERT INTO auftragpos (orderno,position,item) VALUES
> (testorder18,1,00123);
> brings error:
> FEHLER: Spalte *testorder18* existiert nicht (Column
> *testorder18* not exists)
> LINE 1: ...T INTO auftragpos (orderno,position,item) VALUES
> (testorder1...
>=20
> But *testorder18* is a value, not a column-name!?!?
> If there is a problem it should bring a message that the value for
> column "orderno" has the wrong format.
=20
'testorder18' is a literal value. Without the apostrophe quoting it
is taken as an identifier, such as a column. It is entirely correct
and appropriate for an error to be generated. The wording of the
message could perhaps be adjusted to help the user understand their
mistake more easily, since there are no columns in context from any
table here; but the message is not actually wrong. Certain reserved
words (such as CURRENT_DATE) would be allowed here, as would
expressions of arbitrary complexity -- sub-selects, CASE predicates,
functions, etc.; it would take a bit of work to sort out when
something might be a malformed attempt at a literal versus a
misspelled column name in a subquery.
=20
-Kevin