scenario: us_aviation_ops
generated_from: dependency_graph.jsonl (audited, join-spine-repaired)
note: 'every join here was executed against duckdb: it returns rows. `join: via` means a two-hop path through `via.table`; use the `sql` field
  verbatim.'
n_joins: 25
joins:
- left_table: flight_event_bts_ontime
  left_col: Reporting_Airline
  right_table: dim_carrier
  right_col: unique_carrier
  type: CERTIFIED_HARD
  join: direct
  strength: high
  key_coverage: 1.0
  column_repairs:
  - flight_event_bts_ontime.op_unique_carrier -> CAST({A}"Reporting_Airline" AS VARCHAR) (value_coverage=1.000)
  sql: "SELECT * FROM \"flight_event_bts_ontime\" a\n  JOIN \"dim_carrier\" b ON CAST(a.\"Reporting_Airline\" AS VARCHAR) = CAST(b.\"unique_carrier\"\
    \ AS VARCHAR)"
- left_table: dim_airport
  left_col: airport_iata
  right_table: flight_event_bts_ontime
  right_col: Origin
  type: WEAK_PARTIAL
  join: direct
  strength: high
  key_coverage: 1.0
  column_repairs:
  - flight_event_bts_ontime.origin -> CAST({A}"Origin" AS VARCHAR) (name_match)
  sql: "SELECT * FROM \"dim_airport\" a\n  JOIN \"flight_event_bts_ontime\" b ON CAST(a.\"airport_iata\" AS VARCHAR) = CAST(b.\"Origin\" AS VARCHAR)"
- left_table: dim_airport
  left_col: airport_iata
  right_table: fact_t100_segment
  right_col: origin
  type: WEAK_PARTIAL
  join: direct
  strength: high
  key_coverage: 1.0
  source_caveat: The BTS T-100 declared table should contain carrier-origin-destination-aircraft type-service class-year-month segment detail;
    the local raw source is BTS/NTAD ArcGIS 2024 annual aircraft data
  sql: "SELECT * FROM \"dim_airport\" a\n  JOIN \"fact_t100_segment\" b ON CAST(a.\"airport_iata\" AS VARCHAR) = CAST(b.\"origin\" AS VARCHAR)"
- left_table: fact_weather_hourly
  left_col: station_id
  right_table: dim_weather_station
  right_col: station_id
  type: CERTIFIED_HARD
  join: direct
  strength: high
  key_coverage: 1.0
  sql: "SELECT * FROM \"fact_weather_hourly\" a\n  JOIN \"dim_weather_station\" b ON CAST(a.\"station_id\" AS VARCHAR) = CAST(b.\"station_id\"\
    \ AS VARCHAR)"
- left_table: dim_airport
  left_col: airport_icao
  right_table: dim_weather_station
  right_col: airport_icao
  type: CROSSWALK_JOIN
  join: direct
  via:
    table: xw_airport_codes
    left_col: airport_iata
    right_col: airport_icao
    left_cov: 1.0
    right_cov: 1.0
  strength: high
  key_coverage: 1.0
  column_repairs:
  - dim_airport.airport_iata -> dim_airport.airport_icao (declared column does not join; this one does)
  sql: "SELECT * FROM \"dim_airport\" a\n  JOIN \"dim_weather_station\" b ON CAST(a.\"airport_icao\" AS VARCHAR) = CAST(b.\"airport_icao\" AS\
    \ VARCHAR)"
- left_table: dim_airport
  left_col: airport_iata
  right_table: dim_weather_station
  right_col: airport_iata
  type: CROSSWALK_JOIN
  join: direct
  via:
    table: xw_airport_codes
    left_col: airport_icao
    right_col: airport_iata
    left_cov: 1.0
    right_cov: 1.0
  strength: high
  key_coverage: 1.0
  column_repairs:
  - dim_airport.airport_icao -> dim_airport.airport_iata (declared column does not join; this one does)
  sql: "SELECT * FROM \"dim_airport\" a\n  JOIN \"dim_weather_station\" b ON CAST(a.\"airport_iata\" AS VARCHAR) = CAST(b.\"airport_iata\" AS\
    \ VARCHAR)"
- left_table: dim_airport
  left_col: airport_iata
  right_table: dim_weather_station
  right_col: airport_iata
  type: CROSSWALK_JOIN
  join: direct
  via:
    table: xw_airport_codes
    left_col: airport_icao
    right_col: airport_iata
    left_cov: 1.0
    right_cov: 1.0
  strength: high
  key_coverage: 1.0
  column_repairs:
  - dim_airport.location_identifier -> dim_airport.airport_iata (declared column does not join; this one does)
  sql: "SELECT * FROM \"dim_airport\" a\n  JOIN \"dim_weather_station\" b ON CAST(a.\"airport_iata\" AS VARCHAR) = CAST(b.\"airport_iata\" AS\
    \ VARCHAR)"
- left_table: flight_event_bts_ontime
  left_col: DestState
  right_table: flight_event_bts_ontime
  right_col: DestStateFips
  type: CROSSWALK_JOIN
  join: via
  via:
    table: xw_us_state_codes
    left_col: state_abbr
    right_col: state_fips
    left_cov: 0.9808
    right_cov: 0.9107
    two_hop_left_cov: 0.9808
  strength: medium
  key_coverage: 0.0
  sql: "SELECT * FROM \"flight_event_bts_ontime\" a\n  JOIN \"xw_us_state_codes\" x ON CAST(a.\"DestState\" AS VARCHAR) = CAST(x.\"state_abbr\"\
    \ AS VARCHAR)\n  JOIN \"flight_event_bts_ontime\" b ON CAST(x.\"state_fips\" AS VARCHAR) = CAST(b.\"DestStateFips\" AS VARCHAR)"
- left_table: flight_event_bts_ontime
  left_col: DestState
  right_table: flight_event_bts_ontime
  right_col: DestStateName
  type: CROSSWALK_JOIN
  join: via
  via:
    table: xw_us_state_codes
    left_col: state_abbr
    right_col: state_name
    left_cov: 0.9808
    right_cov: 0.8929
    two_hop_left_cov: 0.9615
  strength: medium
  key_coverage: 0.0
  sql: "SELECT * FROM \"flight_event_bts_ontime\" a\n  JOIN \"xw_us_state_codes\" x ON CAST(a.\"DestState\" AS VARCHAR) = CAST(x.\"state_abbr\"\
    \ AS VARCHAR)\n  JOIN \"flight_event_bts_ontime\" b ON CAST(x.\"state_name\" AS VARCHAR) = CAST(b.\"DestStateName\" AS VARCHAR)"
- left_table: flight_event_bts_ontime
  left_col: DestStateFips
  right_table: flight_event_bts_ontime
  right_col: DestStateName
  type: CROSSWALK_JOIN
  join: via
  via:
    table: xw_us_state_codes
    left_col: state_fips
    right_col: state_name
    left_cov: 0.9808
    right_cov: 0.8929
    two_hop_left_cov: 0.9615
  strength: medium
  key_coverage: 0.0
  sql: "SELECT * FROM \"flight_event_bts_ontime\" a\n  JOIN \"xw_us_state_codes\" x ON CAST(a.\"DestStateFips\" AS VARCHAR) = CAST(x.\"state_fips\"\
    \ AS VARCHAR)\n  JOIN \"flight_event_bts_ontime\" b ON CAST(x.\"state_name\" AS VARCHAR) = CAST(b.\"DestStateName\" AS VARCHAR)"
- left_table: flight_event_bts_ontime
  left_col: OriginState
  right_table: flight_event_bts_ontime
  right_col: DestStateFips
  type: CROSSWALK_JOIN
  join: via
  via:
    table: xw_us_state_codes
    left_col: state_abbr
    right_col: state_fips
    left_cov: 0.9808
    right_cov: 0.9107
    two_hop_left_cov: 0.9808
  strength: medium
  key_coverage: 0.0
  sql: "SELECT * FROM \"flight_event_bts_ontime\" a\n  JOIN \"xw_us_state_codes\" x ON CAST(a.\"OriginState\" AS VARCHAR) = CAST(x.\"state_abbr\"\
    \ AS VARCHAR)\n  JOIN \"flight_event_bts_ontime\" b ON CAST(x.\"state_fips\" AS VARCHAR) = CAST(b.\"DestStateFips\" AS VARCHAR)"
- left_table: flight_event_bts_ontime
  left_col: OriginState
  right_table: flight_event_bts_ontime
  right_col: DestStateName
  type: CROSSWALK_JOIN
  join: via
  via:
    table: xw_us_state_codes
    left_col: state_abbr
    right_col: state_name
    left_cov: 0.9808
    right_cov: 0.8929
    two_hop_left_cov: 0.9615
  strength: medium
  key_coverage: 0.0
  sql: "SELECT * FROM \"flight_event_bts_ontime\" a\n  JOIN \"xw_us_state_codes\" x ON CAST(a.\"OriginState\" AS VARCHAR) = CAST(x.\"state_abbr\"\
    \ AS VARCHAR)\n  JOIN \"flight_event_bts_ontime\" b ON CAST(x.\"state_name\" AS VARCHAR) = CAST(b.\"DestStateName\" AS VARCHAR)"
- left_table: flight_event_bts_ontime
  left_col: OriginState
  right_table: flight_event_bts_ontime
  right_col: OriginStateFips
  type: CROSSWALK_JOIN
  join: via
  via:
    table: xw_us_state_codes
    left_col: state_abbr
    right_col: state_fips
    left_cov: 0.9808
    right_cov: 0.9107
    two_hop_left_cov: 0.9808
  strength: medium
  key_coverage: 0.0
  sql: "SELECT * FROM \"flight_event_bts_ontime\" a\n  JOIN \"xw_us_state_codes\" x ON CAST(a.\"OriginState\" AS VARCHAR) = CAST(x.\"state_abbr\"\
    \ AS VARCHAR)\n  JOIN \"flight_event_bts_ontime\" b ON CAST(x.\"state_fips\" AS VARCHAR) = CAST(b.\"OriginStateFips\" AS VARCHAR)"
- left_table: flight_event_bts_ontime
  left_col: OriginState
  right_table: flight_event_bts_ontime
  right_col: OriginStateName
  type: CROSSWALK_JOIN
  join: via
  via:
    table: xw_us_state_codes
    left_col: state_abbr
    right_col: state_name
    left_cov: 0.9808
    right_cov: 0.8929
    two_hop_left_cov: 0.9615
  strength: medium
  key_coverage: 0.0
  sql: "SELECT * FROM \"flight_event_bts_ontime\" a\n  JOIN \"xw_us_state_codes\" x ON CAST(a.\"OriginState\" AS VARCHAR) = CAST(x.\"state_abbr\"\
    \ AS VARCHAR)\n  JOIN \"flight_event_bts_ontime\" b ON CAST(x.\"state_name\" AS VARCHAR) = CAST(b.\"OriginStateName\" AS VARCHAR)"
- left_table: flight_event_bts_ontime
  left_col: OriginStateFips
  right_table: flight_event_bts_ontime
  right_col: DestState
  type: CROSSWALK_JOIN
  join: via
  via:
    table: dim_aircraft_registry
    left_col: serial_number
    right_col: registrant_state
    left_cov: 1.0
    right_cov: 0.8793
    two_hop_left_cov: 1.0
  strength: high
  key_coverage: 0.0
  sql: "SELECT * FROM \"flight_event_bts_ontime\" a\n  JOIN \"dim_aircraft_registry\" x ON CAST(a.\"OriginStateFips\" AS VARCHAR) = CAST(x.\"\
    serial_number\" AS VARCHAR)\n  JOIN \"flight_event_bts_ontime\" b ON CAST(x.\"registrant_state\" AS VARCHAR) = CAST(b.\"DestState\" AS VARCHAR)"
- left_table: flight_event_bts_ontime
  left_col: OriginStateFips
  right_table: flight_event_bts_ontime
  right_col: DestStateName
  type: CROSSWALK_JOIN
  join: via
  via:
    table: xw_us_state_codes
    left_col: state_fips
    right_col: state_name
    left_cov: 0.9808
    right_cov: 0.8929
    two_hop_left_cov: 0.9615
  strength: medium
  key_coverage: 0.0
  sql: "SELECT * FROM \"flight_event_bts_ontime\" a\n  JOIN \"xw_us_state_codes\" x ON CAST(a.\"OriginStateFips\" AS VARCHAR) = CAST(x.\"state_fips\"\
    \ AS VARCHAR)\n  JOIN \"flight_event_bts_ontime\" b ON CAST(x.\"state_name\" AS VARCHAR) = CAST(b.\"DestStateName\" AS VARCHAR)"
- left_table: flight_event_bts_ontime
  left_col: OriginStateFips
  right_table: flight_event_bts_ontime
  right_col: OriginStateName
  type: CROSSWALK_JOIN
  join: via
  via:
    table: xw_us_state_codes
    left_col: state_fips
    right_col: state_name
    left_cov: 0.9808
    right_cov: 0.8929
    two_hop_left_cov: 0.9615
  strength: medium
  key_coverage: 0.0
  sql: "SELECT * FROM \"flight_event_bts_ontime\" a\n  JOIN \"xw_us_state_codes\" x ON CAST(a.\"OriginStateFips\" AS VARCHAR) = CAST(x.\"state_fips\"\
    \ AS VARCHAR)\n  JOIN \"flight_event_bts_ontime\" b ON CAST(x.\"state_name\" AS VARCHAR) = CAST(b.\"OriginStateName\" AS VARCHAR)"
- left_table: flight_event_bts_ontime
  left_col: OriginStateName
  right_table: flight_event_bts_ontime
  right_col: DestState
  type: CROSSWALK_JOIN
  join: via
  via:
    table: xw_us_state_codes
    left_col: state_name
    right_col: state_abbr
    left_cov: 0.9615
    right_cov: 0.9107
    two_hop_left_cov: 0.9615
  strength: medium
  key_coverage: 0.0
  sql: "SELECT * FROM \"flight_event_bts_ontime\" a\n  JOIN \"xw_us_state_codes\" x ON CAST(a.\"OriginStateName\" AS VARCHAR) = CAST(x.\"state_name\"\
    \ AS VARCHAR)\n  JOIN \"flight_event_bts_ontime\" b ON CAST(x.\"state_abbr\" AS VARCHAR) = CAST(b.\"DestState\" AS VARCHAR)"
- left_table: flight_event_bts_ontime
  left_col: OriginStateName
  right_table: flight_event_bts_ontime
  right_col: DestStateFips
  type: CROSSWALK_JOIN
  join: via
  via:
    table: xw_us_state_codes
    left_col: state_name
    right_col: state_fips
    left_cov: 0.9615
    right_cov: 0.9107
    two_hop_left_cov: 0.9615
  strength: medium
  key_coverage: 0.0
  sql: "SELECT * FROM \"flight_event_bts_ontime\" a\n  JOIN \"xw_us_state_codes\" x ON CAST(a.\"OriginStateName\" AS VARCHAR) = CAST(x.\"state_name\"\
    \ AS VARCHAR)\n  JOIN \"flight_event_bts_ontime\" b ON CAST(x.\"state_fips\" AS VARCHAR) = CAST(b.\"DestStateFips\" AS VARCHAR)"
- left_table: dim_airport
  left_col: airport_iata
  right_table: dim_weather_station
  right_col: airport_iata
  type: confirmed_value_fk
  join: direct
  strength: high
  key_coverage: 1.0
  sql: "SELECT * FROM \"dim_airport\" a\n  JOIN \"dim_weather_station\" b ON CAST(a.\"airport_iata\" AS VARCHAR) = CAST(b.\"airport_iata\" AS\
    \ VARCHAR)"
- left_table: dim_airport
  left_col: airport_icao
  right_table: dim_weather_station
  right_col: airport_icao
  type: confirmed_value_fk
  join: direct
  strength: high
  key_coverage: 1.0
  sql: "SELECT * FROM \"dim_airport\" a\n  JOIN \"dim_weather_station\" b ON CAST(a.\"airport_icao\" AS VARCHAR) = CAST(b.\"airport_icao\" AS\
    \ VARCHAR)"
- left_table: dim_airport
  left_col: airport_name
  right_table: dim_weather_station
  right_col: station_name
  type: confirmed_value_fk
  join: direct
  strength: high
  key_coverage: 1.0
  sql: "SELECT * FROM \"dim_airport\" a\n  JOIN \"dim_weather_station\" b ON CAST(a.\"airport_name\" AS VARCHAR) = CAST(b.\"station_name\" AS\
    \ VARCHAR)"
- left_table: dim_airport
  left_col: location_identifier
  right_table: dim_weather_station
  right_col: airport_icao
  type: confirmed_value_fk
  join: direct
  strength: high
  key_coverage: 1.0
  sql: "SELECT * FROM \"dim_airport\" a\n  JOIN \"dim_weather_station\" b ON CAST(a.\"location_identifier\" AS VARCHAR) = CAST(b.\"airport_icao\"\
    \ AS VARCHAR)"
- left_table: flight_event_bts_ontime
  left_col: IATA_CODE_Reporting_Airline
  right_table: dim_carrier
  right_col: iata_carrier_code
  type: confirmed_value_fk
  join: direct
  strength: high
  key_coverage: 1.0
  sql: "SELECT * FROM \"flight_event_bts_ontime\" a\n  JOIN \"dim_carrier\" b ON CAST(a.\"IATA_CODE_Reporting_Airline\" AS VARCHAR) = CAST(b.\"\
    iata_carrier_code\" AS VARCHAR)"
- left_table: flight_event_bts_ontime
  left_col: Reporting_Airline
  right_table: dim_carrier
  right_col: unique_carrier
  type: confirmed_value_fk
  join: direct
  strength: high
  key_coverage: 1.0
  sql: "SELECT * FROM \"flight_event_bts_ontime\" a\n  JOIN \"dim_carrier\" b ON CAST(a.\"Reporting_Airline\" AS VARCHAR) = CAST(b.\"unique_carrier\"\
    \ AS VARCHAR)"