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SELECT  timestamp + interval 1 hour as time, elapsed_time 
FROM tinybird.datasources_ops_log
WHERE datasource_id = 't_...' AND toDateTime(timestamp) 
BETWEEN toDateTime({{String(start_date, '2021-12-23 15:00:00')}})  - interval 2 hour 
AND toDateTime({{String(start_date, '2021-12-23 15:00:00')}}) - interval 1 hour
ORDER BY time