The genre column was VARCHAR(100), and the audio tag fallback stores the
file's raw genre atom verbatim. Libation writes Audible's category ladder
as one comma-joined string ("Politicians, Presidents & Heads of State,
United States, Russia, Communism & Socialism, International Relations" —
111 chars), so any such book failed its import or metadata update with
SQLSTATE 22001 (value too long), taking the whole row down with it.
VARCHAR -> TEXT is a metadata-only change in Postgres and safe to re-run;
the in-place ALTER follows the media_highlights position-widening
precedent so existing databases converge on restart (schema.sql runs on
every boot).
John O'Keefe
d42c78f58c