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#
# Test file for InnoDB tests that require the debug sync facility
#
--source include/have_innodb.inc
--source include/have_debug_sync.inc
# Save the initial number of concurrent sessions.
--source include/count_sessions.inc
--echo #
--echo # Bug 42074 concurrent optimize table and
--echo # alter table = Assertion failed: thd->is_error()
--echo #
--disable_warnings
DROP TABLE IF EXISTS t1;
--enable_warnings
--echo # Create InnoDB table
CREATE TABLE t1 (id INT) engine=innodb;
connect (con2, localhost, root);
--echo # Connection 1
--echo # Start optimizing table
connection default;
SET DEBUG_SYNC='ha_admin_try_alter SIGNAL optimize_started WAIT_FOR table_altered';
--send OPTIMIZE TABLE t1
--echo # Connection 2
--echo # Change table to engine=memory
connection con2;
SET DEBUG_SYNC='now WAIT_FOR optimize_started';
ALTER TABLE t1 engine=memory;
SET DEBUG_SYNC='now SIGNAL table_altered';
--echo # Connection 1
--echo # Complete optimization
connection default;
--reap
disconnect con2;
DROP TABLE t1;
SET DEBUG_SYNC='RESET';
# Check that all connections opened by test cases in this file are really
# gone so execution of other tests won't be affected by their presence.
--source include/wait_until_count_sessions.inc
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