functional.sqlancer.tidb_challenge_19_test. Incorrect result for LEFT JOIN and CASE operator

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Full history of outcomes and elapsed time, ms:
NN SNAP_INFO CS_outcome SS_outcome CS_run_time SS_run_time CS_run_beg CS_run_end SS_run_beg SS_run_end
1 4.0.6.3215 2025.06.25 6461d P P 637 402 2025.06.29 07:57:20.031 2025.06.29 07:57:20.668 2025.06.29 06:55:44.037 2025.06.29 06:55:44.439
2 4.0.6.3214 2025.06.21 e11f6 P P 598 431 2025.06.25 12:50:08.240 2025.06.25 12:50:08.838 2025.06.25 11:48:02.932 2025.06.25 11:48:03.363
3 4.0.6.3213 2025.06.14 f015c P P 640 422 2025.06.21 07:50:44.589 2025.06.21 07:50:45.229 2025.06.21 06:48:22.890 2025.06.21 06:48:23.312
4 4.0.6.3212 2025.06.11 bc50d P P 624 409 2025.06.14 08:18:24.753 2025.06.14 08:18:25.377 2025.06.14 07:15:27.941 2025.06.14 07:15:28.350
5 4.0.6.3208 2025.06.10 19fe3 P P 631 429 2025.06.11 06:45:19.751 2025.06.11 06:45:20.382 2025.06.11 05:43:24.167 2025.06.11 05:43:24.596
6 4.0.6.3207 2025.06.07 205ff P P 643 438 2025.06.10 06:46:45.351 2025.06.10 06:46:45.994 2025.06.10 05:44:01.771 2025.06.10 05:44:02.209
7 4.0.6.3206 2025.05.22 d7d10 P P 598 413 2025.06.06 06:40:20.387 2025.06.06 06:40:20.985 2025.06.06 05:39:04.892 2025.06.06 05:39:05.305

Elapsed time, ms. Chart for last 7 runs:

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