Timescale/pgvectorscale: Release 0.2.0

Name: pgvectorscale

Owner: Timescale

Release: 0.2.0

Released: 2024-06-05

License: PostgreSQL

Release Assets:

This is a major release

This release contains major algorithmic improvements to make the index much more performant. The (now default) SBQ mode allows for very fast retrieval over a compressed index. Please see the accompanying benchmark posts for more information.

  • improved DiskANN algorithm including better stopping criteria and other algorithmic changes
  • A new quantization algorithm called Statistical Binary Quantization (SBQ) for improved accuracy on quantized retrieval. This is SOTA for binary quantization.
  • Rescoring as part of index retrieval -- which greatly improves accuracy for partitioned tables.
  • Deprecating PQ
  • New extension name vectorscale and project name pgvectorscale
  • New index name diskann

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