Module iterator 

Query Result Iterators

Lazy evaluation of query results through binding streams.

Design

• Pull-based iteration (demand-driven)
• Composable iterator wrappers
• Memory-efficient streaming
• Early termination support

Structs

QueryIter

Wrapper for boxed iterator to implement Iterator trait

QueryIterBase

Base query iterator wrapping a binding source

QueryIterDistinct

Distinct iterator - removes duplicates

QueryIterFilter

Filter iterator - applies predicate to upstream

QueryIterJoin

Join iterator - nested loop join

QueryIterProject

Project iterator - selects subset of variables

QueryIterSlice

Slice iterator - limit and offset

QueryIterSort

Sort iterator - orders results

QueryIterUnion

Union iterator - concatenates multiple iterators

SortKey

Sort key specification

Enums

IterError

Iterator errors

Traits

BindingIterator

Core trait for binding iterators

Type Aliases

IterResult

Result from iterator operations