Re: SQL0840N Too many items were returned in a SELECT list

Consider that DB2 is imposing the constraint.

https://www.ibm.com/support/knowledgecenter/en/SSEPGG_11.1.0/com.ibm.db2.luw.messages.sql.doc/doc/msql00840n.html

But, you may also want to review what you are doing in your models to cause queries to proje...