ubuntu@ip-172-31-13-58:~/MariaDBEnterprise/storage/columnstore/columnstore/tests/scripts$ sudo ./run_mtr.sh --record --test_full_name future.query_accelerator
 ・ Adding mtr warnings functions...
patching file mtr_warnings.sql
Hunk #2 succeeded at 269 (offset -2 lines).
/usr/share/mariadb/mariadb-test
MTR Warnings function added
 ・ Test results are RECORDED
 ・ Running suite future with test query_accelerator and --extern=false
Logging: ./mtr  --force --record --max-test-fail=0 --testcase-timeout=60 --suite=columnstore/future query_accelerator
VS config: 
vardir: /usr/share/mariadb/mariadb-test/var
Checking leftover processes...
Removing old var directory...
Creating var directory '/usr/share/mariadb/mariadb-test/var'...
Checking supported features...
MariaDB Version 11.4.9-5-MariaDB-enterprise
 - SSL connections supported
Collecting tests...
Installing system database...

==============================================================================

TEST                                      RESULT   TIME (ms) or COMMENT
--------------------------------------------------------------------------

worker[01] Using MTR_BUILD_THREAD 300, with reserved ports 19000..19029
worker[01] mysql-test-run: WARNING: running this script as _root_ will cause some tests to be skipped
columnstore/future.query_accelerator     [ fail ]
        Test ended at 2025-11-12 21:05:55

CURRENT_TEST: columnstore/future.query_accelerator
mysqltest: At line 318: query 'SELECT
p_brand,
p_type,
p_size,
COUNT(DISTINCT ps_suppkey) AS supplier_cnt
FROM partsupp, part
WHERE p_partkey = ps_partkey
AND p_brand <> 'Brand#45'
      AND p_type NOT LIKE 'MEDIUM POLISHED%'
      AND p_size IN (49, 14, 23, 45, 19, 3, 36, 9)
AND ps_suppkey NOT IN (
SELECT s_suppkey
FROM supplier
WHERE s_comment LIKE '%Customer%Complaints%'
      )
GROUP BY p_brand, p_type, p_size
ORDER BY supplier_cnt DESC, p_brand, p_type, p_size' failed: <Unknown> (2013): Lost connection to server during query

The result from queries just before the failure was:
< snip >
SELECT  "QUERY 16";
QUERY 16
QUERY 16
SELECT
p_brand,
p_type,
p_size,
COUNT(DISTINCT ps_suppkey) AS supplier_cnt
FROM partsupp, part
WHERE p_partkey = ps_partkey
AND p_brand <> 'Brand#45'
      AND p_type NOT LIKE 'MEDIUM POLISHED%'
      AND p_size IN (49, 14, 23, 45, 19, 3, 36, 9)
AND ps_suppkey NOT IN (
SELECT s_suppkey
FROM supplier
WHERE s_comment LIKE '%Customer%Complaints%'
      )
GROUP BY p_brand, p_type, p_size
ORDER BY supplier_cnt DESC, p_brand, p_type, p_size;

More results from queries before failure can be found in /usr/share/mariadb/mariadb-test/var/log/query_accelerator.log

 - saving '/usr/share/mariadb/mariadb-test/var/log/columnstore/future.query_accelerator/' to '/usr/share/mariadb/mariadb-test/var/log/future.query_accelerator/'
***Warnings generated in error logs during shutdown after running tests: columnstore/future.query_accelerator

251112 21:05:47 [ERROR] /usr/sbin/mariadbd got signal 11 ;
Attempting backtrace. Include this in the bug report.

--------------------------------------------------------------------------
The servers were restarted 0 times
Spent 0.000 of 59 seconds executing testcases

Completed: Failed 1/1 tests, 0.00% were successful.

Failing test(s): columnstore/future.query_accelerator

The log files in var/log may give you some hint of what went wrong.

If you want to report this error, MariaDB's bug tracker is found at
https://jira.mariadb.org

Errors/warnings were found in logfiles during server shutdown after running the
following sequence(s) of tests:
    columnstore/future.query_accelerator
mysql-test-run: *** ERROR: there were failing test cases
 ・ reports or coredumps:
--- /home/ubuntu/MariaDBEnterprise/storage/columnstore/columnstore/tests/scripts/mtr.future.cores-before	2025-11-12 21:04:56.310420839 +0000
+++ /home/ubuntu/MariaDBEnterprise/storage/columnstore/columnstore/tests/scripts/mtr.future.cores-after	2025-11-12 21:05:58.039875992 +0000
@@ -0,0 +1 @@
+core_mariadbd.3699724
/tmp
ubuntu@ip-172-31-13-58:~/MariaDBEnterprise/storage/columnstore/columnstore/tests/scripts$