Transaction and SQL errors

Hello!

Is there any plan to have an equivalent of psql's

set ON_ERROR_ROLLBACK on

in the DB engine?

Most other DB engines have this behavior built-in, that makes migration to PostgreSQL more difficult when there are complex long transactions in the application code.

I do often suggest programmers to trust the DB engine regarding table constraints, and let the engine check unique / foreign keys, etc. However, these errors cancel the whole transaction and user code can't correct the last SQL statement and try a new execution, without losing everything since TX started...

Any thoughts?

Any arguments I could give to programmers? Maybe:
"You better replay all SQL of the whole transaction... (and make them as short as possible!)"
?

Seb