Changelog

Aug 31, 2023

pgvector extension 0.5.0 for Aiven for PostgreSQL® released

pgvector version 0.5.0 is now available for Aiven for PostgreSQL®.
It introduces new features and bug fixes on top of release 0.4.2.

Key features

  • New
    • HNSW index type
    • Support for parallel index builds for IVFFlat
    • l1_distance function
    • Element-wise multiplication for vectors
    • sum aggregate
  • Improved
    • Performance of distance functions
    • Error message for malformed vector literal
    • Cost estimation
    • Support for spaces with text input

Bug fixes

  • Fixed out of range results for cosine distance
  • Fixed results for NULL and NaN distances for IVFFlat
  • Fixed segmentation fault with index creation on i386
  • Fixed segmentation fault with text input
  • Fixed consecutive delimiters with text input
  • Fixed infinite and NaN values with binary input
  • Fixed infinite values with vector addition and subtraction
  • Fixed infinite values with list centers
  • Fixed compilation error when float8 is pass by reference
  • Fixed compilation error on PowerPC