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SET DEBUG_SYNC='RESET';
DROP TABLE IF EXISTS t1;
#
# Bug#20667 - Truncate table fails for a write locked table
#
CREATE TABLE t1 (c1 INT);
INSERT INTO t1 VALUES (1);
connect con1, localhost, root,,;
START TRANSACTION;
INSERT INTO t1 VALUES (2);
connection default;
SET DEBUG_SYNC='mdl_acquire_lock_wait SIGNAL waiting';
TRUNCATE TABLE t1;
connection con1;
SET DEBUG_SYNC='now WAIT_FOR waiting';
KILL QUERY @id;
connection default;
ERROR 70100: Query execution was interrupted
connection con1;
# Release SW lock by committing transaction.
COMMIT;
disconnect con1;
connection default;
UNLOCK TABLES;
DROP TABLE t1;
SET DEBUG_SYNC='RESET';
#
# Bug#57659 Segfault in Query_cache::invalidate_data for TRUNCATE TABLE
#
# Note that this test case only reproduces the problem
# when it is run with valgrind.
DROP TABLE IF EXISTS t1, m1;
CREATE TABLE t1(a INT) engine=memory;
CREATE TABLE m1(a INT) engine=merge UNION(t1);
connect con2, localhost, root;
connect con1, localhost, root;
SET DEBUG_SYNC= 'open_tables_after_open_and_process_table SIGNAL opened WAIT_FOR dropped';
# Sending:
TRUNCATE TABLE m1;
connection con2;
SET DEBUG_SYNC= 'now WAIT_FOR opened';
# Sending:
FLUSH TABLES m1;
connection default;
# Waiting for FLUSH TABLES to be blocked.
SET DEBUG_SYNC= 'now SIGNAL dropped';
connection con1;
# Reaping: TRUNCATE TABLE m1
ERROR HY000: Unable to open underlying table which is differently defined or of non-MyISAM type or doesn't exist
disconnect con1;
connection con2;
# Reaping: FLUSH TABLES
disconnect con2;
connection default;
SET DEBUG_SYNC= 'RESET';
DROP TABLE m1, t1;
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