Hi, I have to refactoring a 'DELETE FROM x WHERE y IN (...)' because IN got to much parameters. => 'stack depth limit exceeded' I don't want to increase just the parameter for max_stack_depth. It is better to refactoring because the number of arguments to IN may increase in the future. My approach is to do multiple 'DELETE FROM x WHERE y=...'. My question is now, what is better for PostgreSQL from a performance perspective? 1. all multiple deletes in one transaction 2. each delete in its own transaction The number of arguments is around 10,000. BTW: The arguments are generate in the application tier. I would have to create a temporary table which I can use in 'DELETE FROM x WHERE y IN (SELECT z FROM tmp)'. Cheers Sven
