08e74665bb
Adds extract/openweathermap package with daily weather extraction for 8
coffee-growing regions (Brazil, Vietnam, Colombia, Ethiopia, Honduras,
Guatemala, Indonesia). Feeds crop stress signal for commodity sentiment score.
Extractor:
- OWM One Call API 3.0 / Day Summary — one JSON.gz per (location, date)
- extract_weather: daily, fetches yesterday + today (16 calls max)
- extract_weather_backfill: fills 2020-01-01 to yesterday, capped at 500
calls/run with resume cursor '{location_id}:{date}' for crash safety
- Full idempotency via file existence check; state tracking via extract_core
SQLMesh:
- seeds.weather_locations (8 regions with lat/lon/variety)
- foundation.fct_weather_daily: INCREMENTAL_BY_TIME_RANGE, grain
(location_id, observation_date), dedup via hash key, crop stress flags:
is_frost (<2°C), is_heat_stress (>35°C), is_drought (<1mm), in_growing_season
Landing path: LANDING_DIR/weather/{location_id}/{year}/{date}.json.gz
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
58 lines
1.8 KiB
SQL
58 lines
1.8 KiB
SQL
/* Foundation fact: daily KC=F Coffee C futures prices. */ /* Reads directly from the landing zone, casts varchar columns to proper types, */ /* and deduplicates via hash key. */ /* Covers all available history from the landing directory. */ /* Grain: one row per trade_date. */ /* Dedup: hash of (trade_date, close) — if Yahoo Finance corrects a price, */ /* the new hash triggers a re-ingest on the next incremental run. */
|
|
MODEL (
|
|
name foundation.fct_coffee_prices,
|
|
kind INCREMENTAL_BY_TIME_RANGE (
|
|
time_column trade_date
|
|
),
|
|
grain (
|
|
trade_date
|
|
),
|
|
start '1971-08-16',
|
|
cron '@daily'
|
|
);
|
|
|
|
WITH src AS (
|
|
SELECT
|
|
*
|
|
FROM READ_CSV(
|
|
@prices_glob(),
|
|
compression = 'gzip',
|
|
header = TRUE,
|
|
union_by_name = TRUE,
|
|
filename = TRUE,
|
|
all_varchar = TRUE
|
|
)
|
|
), cast_and_clean AS (
|
|
SELECT
|
|
TRY_CAST(Date AS DATE) AS trade_date,
|
|
TRY_CAST(Open AS DOUBLE) AS open,
|
|
TRY_CAST(High AS DOUBLE) AS high,
|
|
TRY_CAST(Low AS DOUBLE) AS low,
|
|
TRY_CAST(Close AS DOUBLE) AS close,
|
|
TRY_CAST(Adj_Close AS DOUBLE) AS adj_close,
|
|
TRY_CAST(Volume AS BIGINT) AS volume,
|
|
filename AS source_file, /* Filename encodes the content hash — use as ingest identifier */
|
|
HASH(Date, Close) AS hkey /* Dedup key: trade date + close price */
|
|
FROM src
|
|
WHERE
|
|
NOT TRY_CAST(Date AS DATE) IS NULL AND NOT TRY_CAST(Close AS DOUBLE) IS NULL
|
|
), deduplicated AS (
|
|
SELECT
|
|
ANY_VALUE(trade_date) AS trade_date,
|
|
ANY_VALUE(open) AS open,
|
|
ANY_VALUE(high) AS high,
|
|
ANY_VALUE(low) AS low,
|
|
ANY_VALUE(close) AS close,
|
|
ANY_VALUE(adj_close) AS adj_close,
|
|
ANY_VALUE(volume) AS volume,
|
|
ANY_VALUE(source_file) AS source_file,
|
|
hkey
|
|
FROM cast_and_clean
|
|
GROUP BY
|
|
hkey
|
|
)
|
|
SELECT
|
|
*
|
|
FROM deduplicated
|
|
WHERE
|
|
trade_date BETWEEN @start_ds AND @end_ds |