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https://github.com/azaion/satellite-provider.git
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Oleksandr Bezdieniezhnykh
687d6bdd5b
Add per-source tile rows to support multi-provider imagery (Google Maps + future UAV). Migration 013 (transactional) introduces source/captured_at columns, backfills existing rows to (source='google_maps', captured_at=created_at), and replaces the 4-column unique index with a 5-column index that includes source. TileRepository: - ColumnList includes source + captured_at - GetByTileCoordinatesAsync returns most-recent row across sources (ORDER BY captured_at DESC, updated_at DESC, id DESC) - GetTilesByRegionAsync uses DISTINCT ON to pick the most-recent tile per cell, restoring caller-facing row order - Insert/Update upsert on the new 5-column conflict key TileSource enum lives in Common.Enums. Snake_case wire format (google_maps, uav) is enforced by a focused TileSourceTypeHandler because the generic ToLowerInvariant pattern would emit "googlemaps", violating contract v1.0.0. TileService stamps Source=GoogleMaps + CapturedAt=UtcNow on every new tile. Tile-storage contract is now frozen at v1.0.0. AC coverage 7/7. New unit + integration tests cover all ACs; existing 200 unit + 5 smoke tests preserved. Co-authored-by: Cursor <cursoragent@cursor.com>
32 lines
1.1 KiB
PL/PgSQL
32 lines
1.1 KiB
PL/PgSQL
-- AZ-484: introduce per-source tile rows.
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-- Adds `source` and `captured_at` columns, backfills existing rows to
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-- (source='google_maps', captured_at=created_at), drops the 4-column unique index
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-- created by migration 012 (idx_tiles_unique_location), and replaces it with a
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-- 5-column unique index that includes `source`. The whole migration runs inside a
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-- single transaction so a failure mid-flight cannot leave the table without its
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-- unique index or with partially backfilled rows (per coderule.mdc and AZ-484
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-- Risk 1 mitigation).
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BEGIN;
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ALTER TABLE tiles ADD COLUMN IF NOT EXISTS source VARCHAR(32);
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ALTER TABLE tiles ADD COLUMN IF NOT EXISTS captured_at TIMESTAMP;
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UPDATE tiles
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SET source = 'google_maps'
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WHERE source IS NULL;
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UPDATE tiles
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SET captured_at = created_at
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WHERE captured_at IS NULL;
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ALTER TABLE tiles ALTER COLUMN source SET NOT NULL;
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ALTER TABLE tiles ALTER COLUMN captured_at SET NOT NULL;
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DROP INDEX IF EXISTS idx_tiles_unique_location;
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CREATE UNIQUE INDEX IF NOT EXISTS idx_tiles_unique_location_source
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ON tiles (latitude, longitude, tile_zoom, tile_size_meters, source);
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COMMIT;
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