- new record kind 5: class and field NAMES, kinds and the two
encoding-relevant metadata words (field_class, field_elem), CRC-framed
like every record. Index layout deliberately absent: indexes rebuild
from rows at boot and never touch record bytes
- names are byte pointers, not constant-pool indices — the database
layer never sees the module's consts, so the runtime resolves them
once; a decoded schema owns a private copy of its bytes
- wo_wal_set_schema adopts the compiled schema; wo_wal_ensure_schema
writes it as a fresh log's first record; compaction writes it at the
head of every replacement, which is how a legacy log becomes
self-describing without a migration step of its own
- apply_record skips it BEFORE reading cid/id (its class count would be
misread as a cid and bounds-refused); replay does not count it
- schema unset = byte-for-byte today's behaviour: all 5700 prior
assertions pass untouched; four new tests cover roundtrip, fresh-log
head, legacy adoption via compaction, and absent/empty files
- test_wal 5743 pass, 0 fail
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
(cherry picked from commit ba8519fa5e39c6ed6a3504d39e5a372f8decd045)
shoney.arickathil
f07295b3c0