$ perl ./mtr main.opt_trace --mem --view-protocol

main.opt_trace                           [ fail ]

        Test ended at 2023-06-11 22:10:40

CURRENT_TEST: main.opt_trace

--- /mnt8t/bld/10.5-asan/mysql-test/main/opt_trace.result	2023-05-12 01:52:44.000000000 +0300

+++ /mnt8t/bld/10.5-asan/mysql-test/main/opt_trace.reject	2023-06-11 22:10:40.666720368 +0300

@@ -8911,31 +8911,7 @@

 ) as JS

 from information_schema.optimizer_trace;

 JS

-[

-    {

-        "considered_keys": 

-        [

-            {

-                "table_name": "t10",

-                "index": "grp_id",

-                "rec_per_key": 100,

-                "param_tables": 1

-            }

-        ],

-        "refills": 5,

-        "spl_pd_boundary": 2,

-        "split_plan_search": 

-        [],

-        "lead_table": "t10",

-        "index": "grp_id",

-        "parts": 1,

-        "split_sel": 0.001,

-        "cost": 2535.968504,

-        "records": 100,

-        "refills": 5,

-        "chosen": true

-    }

-]

+NULL

 drop table t1,t2,t3,t10,t11;

 set optimizer_trace=DEFAULT;

 #

mysqltest: Result length mismatch