The .picpeak restore suites gate their Postgres cases behind
PICPEAK_PG_TEST_URL and describe.skip themselves out when it is unset. That
variable was set in no workflow, so those cases have never run in CI — the
suites reported green while silently skipping the half that needs a real
database: sequence resync, operator/role preservation across a cross-instance
restore, and whether a coerced row lands with the right STORED VALUES rather
than merely not throwing.
Add a postgres:15-alpine service to the backend job (same shape schema-drift
already uses) and point the variable at it. Everything else in the suite still
runs on SQLite; this only un-gates the cases that were skipping.
Verified against a real Postgres 15 before wiring: picpeakRestorePg 4/4 and
picpeakCrossEngine 11/11 (8 of which were previously skipped across both).
Matters now because #1043 opens sqlite -> pg restore to the upload UI, so the
coercion layer's correctness stops being a CLI-only concern.
Co-authored-by: Paul Nothaft <[email protected]>
