WITH
cte AS (
SELECT *, SUM(delay_ping_type = 'wire_close') OVER (ORDER BY last_updated_on DESC) group_no
FROM source_table
)
SELECT MIN(last_updated_on) wire_open,
MAX(last_updated_on) wire_close
FROM cte
-- WHERE group_no > 0 -- removes final open without close
GROUP BY group_no
-- HAVING wire_open
测试一下:
WITH cte AS ( SELECT *, SUM(delay_ping_type = 'wire_close') OVER (ORDER BY last_updated_on DESC) group_no FROM source_table ) SELECT MIN(last_updated_on) wire_open, MAX(last_updated_on) wire_close FROM cte -- WHERE group_no > 0 -- removes final open without close GROUP BY group_no -- HAVING wire_openhttps://www.db-fiddle.com/f/njuPYFYug87jTWKHHv6yRK/2 (感谢 @lemon 的小提琴)。