someone working to add merge?

Hi,

there is someone working in add the MERGE statement?

i don't find much about what a good implementation of merge must have...

i think what it needs to do is something like:

- try to lock the rows for update
- if the lock cannot be immediatly acquire ask why
- if the rows are already locked, wait and try again?
- if no rows were found try de insert part
- if there was any other error, abort
- else update

so i suppose we can reuse many of the code breaking the merge in 3
pieces... for now they are just thougths, i will think more in this
and try to implement it...

comments? ideas? suggestions?

--
regards,
Jaime Casanova
(DBA: DataBase Aniquilator ;)