Quarterly Rosreestr dataset_КАДАСТРСТОИМОСТЬ (cadastral value) gives a
per-cad-quarter cadastral ₽/m². Registered deals priced below 0.7x that
quarter's cadastral median are dropped from mv_quarter_price_per_m2 as
noise (data-entry junk / non-arm's-length deals that drag medians down).
- 178_schema_cadastral_value.sql: rosreestr_cadastral_value (+ staging),
region-66-scoped, idempotent.
- 178b_load_cadastral_value.py: psycopg v3 staging COPY -> typed region-66
INSERT, idempotent skip-if-loaded. Run MANUALLY by operator after deploy.
- 179_mv_quarter_price_cadastral_floor.sql: recreates BOTH MVs (CASCADE
drops the dependent index MV). Adds cad_floor CTE + LEFT JOIN guard to
mv_quarter_price_per_m2; mv_quarter_price_index recreated verbatim.
Safe to auto-apply on prod before any cadastral data exists: empty
rosreestr_cadastral_value -> cad_floor has 0 rows -> floor_ppm2 IS NULL for
every quarter -> predicate keeps ALL deals -> MV byte-identical to the
pre-floor (95) definition. Proven by a rolled-back dry-run (66:% EXCEPT
both directions = 0). With the experiment cad source loaded the floor
moves 480 of 1972 quarters (median 66788 -> 67350).
NN bumped from spec's 172/173 to 178/178b/179 (172-177 already on main).
