/usr/lib/mysql-testsuite/r/merge-big.result is in mysql-testsuite-5.6 5.6.16-1~exp1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 | drop table if exists t1,t2,t3,t4,t5,t6;
#
# Bug#26379 - Combination of FLUSH TABLE and REPAIR TABLE
# corrupts a MERGE table
# Problem #3
#
CREATE TABLE t1 (c1 INT) ENGINE= MyISAM;
LOCK TABLE t1 WRITE;
# connection con1
SET SESSION debug="+d,sleep_open_and_lock_after_open";
INSERT INTO t1 VALUES (1);
# connection default
# Let INSERT go into thr_multi_lock().
# Kick INSERT out of thr_multi_lock().
FLUSH TABLES;
# Let INSERT go through open_tables() where it sleeps.
# Unlock and close table and wait for con1 to close too.
FLUSH TABLES;
# This should give no result.
SELECT * FROM t1;
c1
UNLOCK TABLES;
# connection con1
SET SESSION debug="-d,sleep_open_and_lock_after_open";
# connection default
DROP TABLE t1;
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