Starburst Galaxy

-- 示例：跨 Galaxy 目录的近期高价值事件
SELECT
    event_name,
    user_id,
    event_timestamp,
    CAST(event_properties AS JSON) as event_properties
FROM catalog.schema.user_events
WHERE event_timestamp >= current_timestamp - INTERVAL '7' DAY
    AND JSON_EXTRACT_SCALAR(event_properties, '$.value') > '100'
ORDER BY event_timestamp DESC;

-- 示例：跨云数据源的联合查询
SELECT
    'cloud_activity' as event_name,
    u.user_id,
    current_timestamp as event_timestamp,
    JSON_FORMAT(JSON_OBJECT(
        's3_interactions', s.interaction_count,
        'snowflake_orders', sf.order_count,
        'bigquery_analytics', bq.score_value
    )) as event_properties
FROM s3_catalog.users.profiles u
LEFT JOIN s3_catalog.interactions.summary s ON u.user_id = s.user_id
LEFT JOIN snowflake_catalog.orders.summary sf ON u.user_id = sf.user_id
LEFT JOIN bigquery_catalog.analytics.scores bq ON u.user_id = bq.user_id
WHERE u.created_date >= current_date - INTERVAL '30' DAY;