Since the commit where it was added, main.information_schema_tables fails sporadically in buildbot and outside.
With ps-protocol it's easily reproducible, run the test with --repeat, it fails within a few attempts:
main.information_schema_tables [ fail ]
Test ended at 2022-04-24 21:28:02
CURRENT_TEST: main.information_schema_tables
mysqltest: At line 28: query 'SELECT v.* FROM v JOIN INFORMATION_SCHEMA.TABLES WHERE DATA_LENGTH = -1' failed: 1615: Prepared statement needs to be re-prepared
The result from queries just before the failure was:
< snip >
#
#
# MDEV-25243 ASAN heap-use-after-free in Item_func_sp::execute_impl upon concurrent view DDL and I_S query with view and function
#
# The originally reported non-deterministic test.
# It did not fail reliably on every run.
CREATE TABLE t (a INT);
INSERT INTO t VALUES (1),(2);
CREATE FUNCTION f(b INT) RETURNS INT RETURN 1;
CREATE VIEW v AS SELECT f(SUM(a)) FROM t;
connect con1,localhost,root,,test;
LOOP
CREATE OR REPLACE VIEW vv AS SELECT 1;
END LOOP $
connection default;
SELECT v.* FROM v JOIN INFORMATION_SCHEMA.TABLES WHERE DATA_LENGTH = -1;
In was also seen to fail in buildbot in the normal mode, but it seems much less likely:
main.information_schema_tables w3 [ fail ]
Test ended at 2022-04-24 10:46:58
CURRENT_TEST: main.information_schema_tables
--- /mnt/buildbot/build/mariadb-10.2.44/mysql-test/r/information_schema_tables.result 2022-04-24 09:49:39.000000000 -0400
+++ /mnt/buildbot/build/mariadb-10.2.44/mysql-test/r/information_schema_tables.reject 2022-04-24 10:46:58.795856264 -0400
@@ -21,6 +21,8 @@
disconnect con1;
connection default;
DROP VIEW IF EXISTS vv;
+Warnings:
+Note 1051 Unknown table 'test.vv'
DROP VIEW v;
DROP FUNCTION f;
DROP TABLE t;
mysqltest: Result length mismatch
Alexander Barkov
made changes -
2022-04-25 05:08
Field
Original Value
New Value
Priority
Major
[ 3
]
Blocker
[ 1
]
Alexander Barkov
made changes -
2022-04-25 05:34
issue.field.resolutiondate
2022-04-25 05:34:05.0
2022-04-25 05:34:05.003
Alexander Barkov
made changes -
2022-04-25 05:34
Fix Version/s
10.2.44
[ 27514
]
Fix Version/s
10.3.35
[ 27512
]
Fix Version/s
10.6.8
[ 27506
]
Fix Version/s
10.6.9
[ 27507
]
Fix Version/s
10.7.4
[ 27504
]
Fix Version/s
10.8.3
[ 27502
]
Fix Version/s
10.6.7
[ 26812
]
Fix Version/s
10.2
[ 14601
]
Resolution
Fixed
[ 1
]
Status
Open
[ 1
]
Closed
[ 6
]
Alexander Barkov
made changes -
2022-06-24 14:22
Fix Version/s
10.5.16
[ 27508
]
Fix Version/s
10.4.25
[ 27510
]
Fix Version/s
10.6.7
[ 26812
]
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