--source include/have_innodb.inc

--connect (stop_purge,localhost,root)
# Prevent the purge of history from acquiring a table handle.
START TRANSACTION WITH CONSISTENT SNAPSHOT;
--connection default

CREATE TABLE t1(a INT PRIMARY KEY, b VARCHAR(1024))
ENGINE=InnoDB STATS_PERSISTENT=1;
INSERT INTO t1 VALUES (1,REPEAT('b',1024));

SELECT index_length FROM information_schema.tables
WHERE table_schema = 'test' AND table_name = 't1';
ALTER TABLE t1 ADD INDEX b (b(800));
SELECT FLOOR(index_length/@@innodb_page_size) FROM information_schema.tables
WHERE table_schema = 'test' AND table_name = 't1';
ALTER TABLE t1 ADD INDEX ba (b(800),a);
SELECT FLOOR(index_length/@@innodb_page_size) FROM information_schema.tables
WHERE table_schema = 'test' AND table_name = 't1';
disconnect stop_purge;
DROP TABLE t1;

--echo #
--echo # MDEV-22855  Assertion (!field->prefix_len ||
--echo #        field->fixed_len == field->prefix_len)
--echo #        failed in btr_node_ptr_max_size
--echo #
CREATE TABLE t1(c CHAR(194) CHARACTER SET UTF32, KEY k1(c(193)))ENGINE=InnoDB;
INSERT INTO t1 SET c='';
DROP TABLE t1;
--echo # End of 10.4 tests
