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###############################################################################
# Bug#17942050:KILL OF TRUNCATE TABLE WILL LEAD TO BINARY LOG WRITTEN WHILE
# ROWS REMAINS
#
# Problem:
# ========
# When truncate table fails while using transactional based engines even
# though the operation errors out we still continue and log it to binlog.
# Because of this master has data but the truncate will be written to binary
# log which will cause inconsistency.
#
# Test:
# =====
# Make master to wait in "open_table" call during the execution of truncate
# table command and kill the truncate table from other connection. This causes
# open table to return an error saying truncate failed during open table. This
# statement should not be binlogged.
###############################################################################
--source include/have_debug_sync.inc
--source include/have_binlog_format_statement.inc
--source include/force_myisam_default.inc
--source include/have_myisam.inc
RESET MASTER;
--enable_connect_log
--connection default
--echo # MERGE is the only remaning non-specialized SE (like NDB or P_S)
--echo # which implements TRUNCATE TABLE through handler::truncate().
CREATE TABLE t0(id INT AUTO_INCREMENT PRIMARY KEY, a INT, b INT) ENGINE=MyISAM;
CREATE TABLE t1(id INT AUTO_INCREMENT PRIMARY KEY, a INT, b INT) ENGINE=MERGE UNION=(t0) INSERT_METHOD=LAST;
INSERT INTO t1(a, b) VALUES(1,2),(2,4),(3,6),(4,8),(5,10);
SET DEBUG_SYNC = "open_and_process_table signal truncate_before_lock wait_for forever";
--send TRUNCATE t1
connect(con1,localhost,root,,);
SET DEBUG_SYNC = "now wait_for truncate_before_lock";
# Wait for one connection to reach open_and_process_table.
--let $show_statement= SHOW PROCESSLIST
--let $field= State
--let $condition= 'debug sync point: open_and_process_table';
--source include/wait_show_condition.inc
SELECT ((@id := id) - id) FROM information_schema.processlist WHERE processlist.info LIKE '%TRUNCATE t1%' AND state LIKE '%open_and_process_table%';
# Test killing from mysql server
KILL QUERY @id;
connection default;
--ERROR ER_QUERY_INTERRUPTED
--reap
connection con1;
--source include/show_binlog_events.inc
disconnect con1;
--source include/wait_until_disconnected.inc
connection default;
SELECT * FROM t1;
DROP TABLE t1, t0;
SET DEBUG_SYNC= 'RESET';
--disable_connect_log
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