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 5.0.3.1674 2025.06.27 3ee5c P P 582 377 2025.06.29 11:19:12.911 2025.06.29 11:19:13.493 2025.06.29 10:15:25.195 2025.06.29 10:15:25.572
2 5.0.3.1657 2025.06.26 dcb8a P P 638 393 2025.06.27 11:19:47.217 2025.06.27 11:19:47.855 2025.06.27 10:16:07.271 2025.06.27 10:16:07.664
3 5.0.3.1657 2025.06.20 8b4d2 P P 612 374 2025.06.26 11:34:15.247 2025.06.26 11:34:15.859 2025.06.26 10:30:19.946 2025.06.26 10:30:20.320
4 5.0.3.1657 2025.06.19 4bd4c P P 609 371 2025.06.20 05:38:24.052 2025.06.20 05:38:24.661 2025.06.20 04:34:33.689 2025.06.20 04:34:34.060
5 5.0.3.1657 2025.06.11 dae6f P P 625 377 2025.06.19 11:09:57.200 2025.06.19 11:09:57.825 2025.06.19 10:06:00.179 2025.06.19 10:06:00.556
6 5.0.3.1657 2025.06.10 dbc92 P P 646 394 2025.06.11 08:56:07.994 2025.06.11 08:56:08.640 2025.06.11 07:52:02.048 2025.06.11 07:52:02.442
7 5.0.3.1656 2025.06.05 00512 P P 611 373 2025.06.10 10:11:27.432 2025.06.10 10:11:28.043 2025.06.10 09:07:03.908 2025.06.10 09:07:04.281

Elapsed time, ms. Chart for last 7 runs:

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