Something like this might work... Select to_way from relation_members_way where to_way not in (select to_way from ways); Romulo Stefan de Konink wrote:

Hi,

I cannot find it back in the trackers but I think it have asked this question before.

Would it be possible to output the actual failing constraint details instead of 'just an error'.

sql>alter table relation_members_way add constraint relation_to_way_fkey foreign key(to_way) references ways; !SQLException:assert:INSERT INTO: FOREIGN KEY constraint 'relation_members_way.relation_to_way_fkey' violated

Inserting with INSERTS will give a nice error, because the query it self contains the problem. This is not true for a copy into, or in this respect just an alter table.

Stefan

ps. indeed I have to think too long about a query that will show me the non existing primary keys.

------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ Monetdb-developers mailing list Monetdb-developers@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/monetdb-developers