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WITH yourTable AS ( SELECT 1 AS Row, '2017-01-19' AS date, 0.3904 AS f0 UNION ALL SELECT 2, '2017-02-04', 0.3149 UNION ALL SELECT 3, '2017-03-24', 0.3302 UNION ALL SELECT 4, '2017-04-09', 0.5339 UNION ALL SELECT 5, '2017-05-11', 0.7753 UNION ALL SELECT 6, '2017-05-27', 0.8539 UNION ALL SELECT 7, '2017-09-16', 0.8803 UNION ALL SELECT 8, '2017-10-02', 0.8570 UNION ALL SELECT 9, '2017-11-03', 0.7744 UNION ALL SELECT 10, '2017-11-19', 0.6092 UNION ALL SELECT 11, '2017-12-05', 0.5785 ) SELECT Row, date, f0 AS minimal FROM ( SELECT Row, date, f0, LAG(f0, 1, f0+0.1) OVER (ORDER BY date) AS f0_lag, LEAD(f0, 1, f0+0.1) OVER (ORDER BY date) AS f0_lead FROM yourTable ) t WHERE f0 < f0_lag AND f0 < f0_lead;
Row
date
minimal
2
2017-02-04
0.3149
11
2017-12-05
0.5785