Re: [Monetdb-developers] Constraint violations with all details

Romulo Goncalves wrote:

Something like this might work...

Select to_way from relation_members_way where to_way not in (select to_way from ways);

Wow :) Yup that works with a slight modification too :) Select distinct relation from relation_members_way where to_way not in (select id from ways); I used: select distinct relation_members_way.relation as relation from relation_members_way left join ways on relation_members_way.to_way = ways.id where ways.id is NULL; Now it does get interesting :) because my query takes half of the time than yours. 537ms vs 1095ms. I have attached both traces :) Stefan http://kinkrsoftware.nl/contrib/monetdb/romulo.txt http://kinkrsoftware.nl/contrib/monetdb/stefan.txt