From the Class::DBI documentation:

Currently the iterator initially fetches all the matching row data into memory, and defers only the creation of the objects from that data until the iterator is asked for the next object. So using an iterator will only save significant memory if your objects will inflate substantially when used. (emphisis mine)

Can anybody give me an example of when this might happen? I can't think of a case where the object itself would cause significantly more memory to be used, and I imagine it doesn't come up a lot, but I could be wrong.

----
I wanted to explore how Perl's closures can be manipulated, and ended up creating an object system by accident.
-- Schemer

Note: All code is untested, unless otherwise stated

In reply to Class::DBI Iterator Memory Usage by hardburn

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