Daniel RammerandClaude Opus 5 c09e808dab refactor(table): shrink LsmStats to measured per-bucket fields ...

`get_lsm_stats` reported four table-level rollups, three per-bucket
derived fields, and two pieces of in-process state. All of it is either
arithmetic the caller can do on the per-bucket list (`bucket_count`,
`generations_total`, `l0_bytes_total`, `memtable_rows_total`, `l0_bytes`,
`wal_lag`) or a value that is true only for the microsecond it was read
(`fenced`, `compaction_in_progress`). Drop them.

What is left is measured: manifest metadata, one entry per flushed L0
generation, and one entry per in-memory memtable. Three shape changes
follow:

* `active_memtable` + `frozen_memtables` collapse into `memtables`,
  ordered oldest first with the active one last. Absent — not empty — for
  a `Sealed` bucket, whose writer is torn down.
* Generation `rows` is unconditional, so `LsmStatsOptions` and its
  `include_generation_rows` flag are gone. A row count that had to be
  asked for was routinely absent from the one report that needed it.
* `memtable_indexes` becomes a list of names on each memtable, since each
  carries its own index store and a frozen one predates an index created
  after it froze.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

2026-07-31 13:01:25 -05:00

..

lancedb

refactor(table): shrink LsmStats to measured per-bucket fields

2026-07-31 13:01:25 -05:00

tests

feat(fts): add block size configuration (#3691)

2026-07-24 15:02:38 -07:00