Issues

• HNSW checkpoint crash: "Duplicate keys not allowed in high-level wrappers"

  duckdb/duckdb-vss#81 · Filter by author nicolas-geysse opened on Mar 21, 2026
  6

• 🙋🏽‍♂️ Question: Does the buffer managed index in 1.4 improve persistance

  duckdb/duckdb-vss#70 · Filter by author ShravanSunder opened on Sep 28, 2025

• Feature Request: Support for Average Vector Aggregation (AVG())

  duckdb/duckdb-vss#67 · Filter by author mrwunderbar666 opened on Aug 20, 2025

• Cannot build extension

  duckdb/duckdb-vss#58 · Filter by author ShravanSunder opened on May 2, 2025
  1

• Creating VSS fails without warning with a large database

  duckdb/duckdb-vss#54 · Filter by author DDoyle1066 opened on Apr 29, 2025
  3

• Using HNSW index when querying against non-constant vector

  duckdb/duckdb-vss#44 · Filter by author lmores opened on Dec 27, 2024
  1

• Using HNSW index in complex queries

  duckdb/duckdb-vss#43 · Filter by author lmores opened on Dec 27, 2024

• CREATE INDEX my_hnsw_idx ON items USING HNSW(embedding); crashed On freebsd 14.2-release

  duckdb/duckdb-vss#41 · Filter by author yes7rose opened on Dec 4, 2024

• Add support for sparse vectors

  duckdb/duckdb-vss#40 · Filter by author falling-springs opened on Dec 2, 2024
  1

• Adding support for binary embeddings

  duckdb/duckdb-vss#37 · Filter by author bhugueney opened on Nov 11, 2024
  6

• extension does not seem to do hybrid queries between HNSW index and typical duckdb scalar where clauses.

  duckdb/duckdb-vss#35 · Filter by author malcolm-smith-mck opened on Oct 28, 2024

• Creating an HNSW index causes severe data inflation

  duckdb/duckdb-vss#32 · Filter by author QuanZi123 opened on Oct 22, 2024

• Benchmark against FAISS & nmslib?

  duckdb/duckdb-vss#4 · Filter by author altosaar opened on Apr 14, 2024
  2