> if { no error during query } { > do it > } else { > withdraw this one > if { ROLLBACK_ON_ERROR } { > rollback entire transaction > } > }
I fear that this is no-where near as simple as it's been taken for, and without looking at the code, I would imagine that this would touch so many different areas, that a simple implementation is just not possible.
Ask yourself; How do other DBMS systems handle this?
MySQL has "INSERT IGNORE" MSSQL has PRIMARY KEY WITH IGNORE_DUP_KEY Oracle has a couple of ways of doing this, one of which logs the data (using a DBMS package) the other is with MERGE.
So, maybe you need to have a look at a postgres sepcific way of doing this, seeing as other DBMS's can't seem to agree? Maybe shorter save points so you lose only partial data?
Also, you might want to read some of the discussions here, as in my opinion, what you're looking for is best solved with MERGE. http://wiki.postgresql.org/wiki/SQL_MERGE
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