The folder-discovery fix in the previous commit surfaced a second problem.
Databases migrated BEFORE that fix recorded the baseline under the name of
the hand-added flat duplicate that used to sit beside it
(prisma/migrations/0001_init.sql). Once the runner started discovering the
real folder (20260910113720_first), it saw a name it had never recorded and
tried to apply the baseline again — against a database that already had it:
Raw query failed. Code: 42710.
ERROR: type "AdminRole" already exists
The two files are identical SQL (verified byte-for-byte after normalising
line endings; they differ only by one trailing blank line), so the recorded
legacy name genuinely means that migration is applied. A LEGACY_NAME_ALIASES
map now treats '0001_init.sql' as an already-applied marker for
'20260910113720_first', so upgrading an existing database is a no-op instead
of a crash.
Verified against the local dev database this actually broke on
(postgresql://localhost:5432/gold_banking, which had recorded only the old
flat name): 'npm run dev' in apps/api now logs 'No pending migrations' and
'Nest application successfully started' instead of dying. That database's
tracking table was also reconciled to record both real migration names, and
it was confirmed to already contain both migrations' schema (AdminRole,
City.percent, user_type, CustomerKind all present) — nothing was re-run
against it. The dockerised database is unaffected: it already records the
real names, so the alias is inert there.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
