bugs.gh_0731_test. coalesce fails with data type varchar and a non ascii value [CORE388]

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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 4.0.6.3189 2025.02.25 1a1a5 P P 768 645 2025.06.29 15:43:56.565 2025.06.29 15:43:57.333 2025.06.29 14:29:48.804 2025.06.29 14:29:49.449
2 4.0.6.3184 2025.02.24 9388c P P 1766 1487 2025.02.25 13:37:17.357 2025.02.25 13:37:19.123 2025.02.25 12:18:54.462 2025.02.25 12:18:55.949
3 4.0.6.3183 2025.02.16 cf6ca P P 1821 1471 2025.02.17 07:31:07.777 2025.02.17 07:31:09.598 2025.02.17 06:12:18.690 2025.02.17 06:12:20.161
4 4.0.6.3169 2024.12.13 42cc1 P P 1725 1484 2025.02.16 04:28:49.389 2025.02.16 04:28:51.114 2025.02.16 03:11:54.242 2025.02.16 03:11:55.726
5 4.0.6.3169 2024.12.08 50eb6 P P 1562 1444 2024.12.12 18:48:13.807 2024.12.12 18:48:15.369 2024.12.12 17:46:48.030 2024.12.12 17:46:49.474
6 4.0.6.3168 2024.11.28 48149 P P 1541 1349 2024.12.06 03:09:36.618 2024.12.06 03:09:38.159 2024.12.06 02:09:41.893 2024.12.06 02:09:43.242
7 4.0.6.3163 2024.10.16 2bb10 P P 1558 1337 2024.11.27 13:33:52.676 2024.11.27 13:33:54.234 2024.11.27 10:33:02.788 2024.11.27 10:33:04.125
8 4.0.6.3163 2024.10.15 f387e P P 1539 1380 2024.10.16 04:39:50.200 2024.10.16 04:39:51.739 2024.10.16 03:42:46.211 2024.10.16 03:42:47.591
9 4.0.6.3147 2024.08.31 4655b P P 1620 1439 2024.09.30 11:54:52.913 2024.09.30 11:54:54.533 2024.09.30 10:51:14.554 2024.09.30 10:51:15.993

Elapsed time, ms. Chart for last 9 runs:

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