Django ref: https://docs.djangoproject.com/en/6.0/ref/models/querysets/#iterator
What's missing
.iterator(chunk_size=2000) returns an iterator over results, fetching one chunk at a time from a server-side cursor — never buffering the whole result set in memory.
Current rustango state
fetch_pool returns Vec<T> fully buffered. Apps processing million-row exports OOM.
Acceptance
QuerySet::iterator_pool(chunk_size, &pool) → impl Stream<Item=Result<T>>.- Tri-dialect: PG cursor support, MySQL streaming, SQLite (always streams).
- Integration test with a large fixture.
Part of the QuerySet API Extensions epic.
Django ref: https://docs.djangoproject.com/en/6.0/ref/models/querysets/#iterator
What's missing
.iterator(chunk_size=2000)returns an iterator over results, fetching one chunk at a time from a server-side cursor — never buffering the whole result set in memory.Current rustango state
fetch_poolreturnsVec<T>fully buffered. Apps processing million-row exports OOM.Acceptance
QuerySet::iterator_pool(chunk_size, &pool) → impl Stream<Item=Result<T>>.Part of the QuerySet API Extensions epic.