Iterator for result set

I've got some big ass database tables that I'd rather not read into memory. In other languages there is an iterator attached to result set, but I haven't seen that in the JS/TS world anywhere. Is that something I'm going to have to write for myself, or have I missed it?

What I'm imagining is either something that uses a DB cursor, or something that basically works like a paginator, where it will select 100 rows at a time, iterate over those rows, and keep doing that each time you call .next() until it has reached the end of the result set.
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