<invoke name="query_sql"> <parameter name="sql">SELECT COUNT(*) AS n, COUNT(DISTINCT _ingestion_timestamp) AS distinct_ts, MIN(_ingestion_timestamp) AS min_ts, MAX(_ingestion_timestamp) AS max_ts, COUNT(DISTINCT _batch_id) AS batches, COUNT(DISTINCT _source_file) AS files FROM raw.bedtime_screentime_sleep_debt</parameter> <parameter name="purpose">Check whether the only timestamp column carries any real time variation</parameter> </invoke> </tool_call> </invoke> <br> <invoke name="query_sql"> <parameter name="sql">SELECT COUNT(*) AS n, COUNT(DISTINCT _ingestion_timestamp) AS distinct_ts, MIN(_ingestion_timestamp) AS min_ts, MAX(_ingestion_timestamp) AS max_ts, COUNT(DISTINCT _batch_id) AS batches, COUNT(DISTINCT _source_file) AS files FROM raw.bedtime_screentime_sleep_debt</parameter> <parameter name="purpose">Check whether the only timestamp column carries any real time variation</parameter> </invoke>