--source include/have_innodb.inc

CREATE TABLE t (a SERIAL) ENGINE=InnoDB;

connect (dml,localhost,root);
# At the end of this statement, close_thread_tables()
# should add the open table handle to the table definition cache (tdc).
select * from t;

connection default;
# This should purge the handle from the tdc;
# otherwise ha_innobase::truncate() would hang,
# waiting for the reference count to drop to 0.
TRUNCATE TABLE t;
disconnect dml;

DROP TABLE t;

--echo #
--echo # MDEV-17816 Crash in TRUNCATE TABLE when table creation fails
--echo #
CREATE TABLE t1 (c VARCHAR(1024), KEY(c)) ENGINE=InnoDB ROW_FORMAT=DYNAMIC;
INSERT INTO t1 SET c='character';
# FIXME: MDEV-17833 ALTER TABLE is not enforcing prefix index size limit
ALTER TABLE t1 ROW_FORMAT=REDUNDANT;
--error ER_INDEX_COLUMN_TOO_LONG
TRUNCATE TABLE t1;
SELECT * FROM t1;
DROP TABLE t1;