feat: initial commit for merica-pipeline delivery

dbt/models/silver/silver_spku_sensor_clean.sql

@@ -0,0 +1,17 @@
+{{ config(
+    materialized='table',
+    schema='silver'
+) }}
+
+WITH raw_json AS (
+    SELECT json_payload FROM {{ source('bronze_lakehouse', 'spku_api_raw') }}
+)
+
+SELECT
+    (json_payload->>'stasiun_id')::VARCHAR AS stasiun_id,
+    (json_payload->>'nama_stasiun')::VARCHAR AS nama_stasiun,
+    (json_payload->>'pm25')::NUMERIC(8,2) AS pm25_value,
+    (json_payload->>'pm10')::NUMERIC(8,2) AS pm10_value,
+    (json_payload->>'recorded_at')::TIMESTAMP AS recorded_at,
+    CURRENT_TIMESTAMP AS ingested_at_silver
+FROM raw_json