Issues

• Vector search falls back to brute force when a matching index exists on the column

  lance-format/lance#9873 · Filter by author FANNG1 opened on Oct 10, 2026

• perf: simplify redundant same-column IN conjunctions before Bitmap index queries

  performance
  lance-format/lance#9870 · Filter by author jischeng opened on Oct 10, 2026

• merge_insert: support explain_plan/analyze_plan on the scalar-index path

  lance-format/lance#9864 · Filter by author wjones127 opened on Oct 10, 2026

• merge_insert analyze_plan: expose structured metrics

  lance-format/lance#9863 · Filter by author wjones127 opened on Oct 10, 2026

• merge_insert analyze_plan leaves orphaned data files

  lance-format/lance#9862 · Filter by author wjones127 opened on Oct 10, 2026

• bug: indexed merge_insert misses matches on rows whose key was changed by a data overlay

  bug
  lance-format/lance#9861 · Filter by author wjones127 opened on Oct 10, 2026

• lance-namespace-impls: use aws-lc-rs instead of ring for reqwest TLS

  lance-format/lance#9855 · Filter by author wjones127 opened on Oct 9, 2026

• Overwrite fragment columns from a stream aligned with its rows

  lance-format/lance#9825 · Filter by author LuciferYang opened on Oct 9, 2026

• bug: stale FTS and BTREE entries returned after an in-place update when the index has more than one segment

  bug
  lance-format/lance#9817 · Filter by author ragnorc opened on Oct 9, 2026
  1

  

• UPDATE that matches no rows still commits a new version

  lance-format/lance#9807 · Filter by author rotty3000 opened on Oct 8, 2026
  2

• feat(datafusion): accept a caller-supplied memory pool in LanceExecutionOptions

  enhancementfeature
  lance-format/lance#9799 · Filter by author wjones127 opened on Oct 8, 2026
  

• bug: contains on an NGram-indexed column returns no rows when every trigram of the needle has a non-alphanumeric character

  bugcritical-fix
  lance-format/lance#9772 · Filter by author xuanyu-z opened on Oct 8, 2026

• Silent data loss on s3:// stores that ignore If-None-Match (e.g. Garage): the fix for #6595 only covers cos://

  bug
  lance-format/lance#9762 · Filter by author LennardGeissler opened on Oct 7, 2026
  1

• IVF_PQ with metric="cosine" and accelerator=... builds an index with much lower recall than the CPU build

  performance
  lance-format/lance#9754 · Filter by author Chastrlove opened on Oct 7, 2026

• feature: retrying ObjectStore::list_with_offset and configurable list retry budget

  feature
  lance-format/lance#9745 · Filter by author wjones127 opened on Oct 6, 2026
  2

  

• cleanup_old_versions never removes the blob v2 sidecar directories it empties

  bug
  lance-format/lance#9744 · Filter by author jennifermell opened on Oct 6, 2026

• bug: a DataOverlay rebased over a concurrent Project keeps an overlay for a dropped column

  bug
  lance-format/lance#9724 · Filter by author wjones127 opened on Oct 5, 2026

• bug: file writer checks nullability against the wrong column when batch columns are reordered

  bug
  lance-format/lance#9713 · Filter by author LuciferYang opened on Oct 5, 2026

• DirectoryNamespace ignores create/drop mode; create_table into a nonexistent namespace leaves an orphan

  lance-format/lance#9697 · Filter by author wjones127 opened on Oct 3, 2026

• Filter regexp_match(col, pat) IS NOT NULL matches every row including NULLs

  bugcritical-fix
  lance-format/lance#9695 · Filter by author wjones127 opened on Oct 3, 2026

• rechunk_stream_by_size collapses a batch's tail into 1-row slices that each report the whole parent buffer

  bugperformance
  lance-format/lance#9692 · Filter by author ragnorc opened on Oct 2, 2026

• FTS code analyzer: analyzer="code" alone doesn't split identifiers, so searching user doesn't find getUserName

  lance-format/lance#9681 · Filter by author wjones127 opened on Oct 1, 2026

• Docs: FTS index format spec (format/index/scalar/fts.md) is stale: no code tokenizer, wrong param names and defaults

  documentation
  lance-format/lance#9680 · Filter by author wjones127 opened on Oct 1, 2026
  1

• Docs: document the code analyzer (how to create a code index, its flags and defaults, docstring, migration notes)

  documentation
  lance-format/lance#9679 · Filter by author wjones127 opened on Oct 1, 2026
  1

• FTS code analyzer: identifier queries are 9–53x slower than simple when split_identifiers and preserve_original are on

  performance
  lance-format/lance#9678 · Filter by author wjones127 opened on Oct 1, 2026