*Unreleased*

With approximate indexes, queries with filtering can return less results(due to post-filtering). Starting with 0.8.0, you can enable iterative index scans. If too few results from the initial scan match the filters, the scan will resume until enough results are found (or it reaches`hnsw.max_scan_tuples` or`ivfflat.max_probes`).

With approximate indexes, queries with filtering can return less resultssincefiltering is applied*after* the index is scanned. Starting with 0.8.0, you can enable iterative index scans. If too few results from the initial scan match the filters, the scan will resume until enough results are found (or it reaches`hnsw.max_scan_tuples` or`ivfflat.max_probes`).

Iterative scans can use strict or relaxed ordering.