Giters

pgvector / pgvector

Open-source vector similarity search for Postgres

Geek Repo:Geek Repo

Github PK Tool:Github PK Tool

0.7.0 Plan

ankane opened this issue · comments

commented

Hi all, just wanted to share the initial plan for 0.7.0, with a goal for the end of April. If you want to help test or have any thoughts, check out the open issues, or create a new issue if there isn't one.

HNSW indexing support for more types

  • float16 vectors - halfvec type - early results
  • binary vectors - bit type (already in Postgres)
  • sparse vectors - sparsevec type

New functions (all of these are currently possible with SQL but less convenient)

  • binary_quantize - convert a vector into a binary vector
  • l2_normalize - normalize a vector to length 1
  • subvector - slice a vector

New operators

  • Hamming distance - <~>
  • Jaccard distance - <%>
  • L1 distance - <+>
  • concatenate vectors - ||

Other changes

  • HNSW and IVFFlat indexing support for L1 distance
  • dynamic dispatch for Linux
  • change comparison operators to not throw an error for vectors with different dimensions
  • change handling of range error to be consistent with real
commented

Quick update: 0.7.0 is on-track to be released early next week (pending final testing).

commented

0.7.0 is now released 🎉