Hi all, I'm an undergraduate form University of Moratuwa. I and three of my colleagues are willing to implement full outer join for Derby.
https://issues.apache.org/jira/browse/DERBY-4832 We also came across this mail. http://old.nabble.com/Start-with-Derby-and-Full-outer-JOIN-td31060327.html We have done following basic steps. 1. We downloaded and built the Derby source 2. We were able to debug the Derby code using Netbeans 3. Able the dumb the query plan 4. Looked at the source code and are in the process of understanding how the Left Outer join has been implemented (NestedLoopLeftOuterJoinResultSet.java ) We are trying to understand how Left Outer Join has being implemented and them implement the Full Outer Join. It would be a big help if someone can point us to other classes that we should study in order to understand the full procedure that happens when a query for a Left outer join is executed. -- Best Regards, Melaka
