MyscaleDB 1.6.4 Release

[Aed-p]

Changelog category:

• New Feature
  • Hybrid Search Refactor.
  • Support basic paging operations for hybrid, vector, and text searches.
  • Add parameters enable_nlq and operator to TextSearch() and HybridSearch().
  • Add a query setting, enbale_fts_index_for_string_functions, to disable the FTS index for string functions by default.
  • Add the icu multilingual tokenizer for the FTS index.
• Improvement
  • Improve SELECT performance when PREWHERE includes the partition key.
  • Optimize the logic for loading FTS indexes.
  • Upgrade the runtime to Ubuntu 22.04.
  • Enhance SELECT FINAL performance with two-stage vector search enabled.
  • Fix TextSearch performance degradation after lightweight delete.
  • Fix the vector search performance issue related to low filter ratios.
• Bug Fix
  • Resolve the issue where ReplacingMergetree destroys the row IDs map data of the decoupled index