#
# Test creating a persistent stats table on nonexistent or corrupted
# persistent storage
#

-- source include/have_innodb.inc
# Various sizes printed in this test depend on the page size and the
# functionality tested here is not related to the page size, so we only
# test with 16k page size.
-- source include/have_innodb_16k.inc
-- source include/not_embedded.inc

call mtr.add_suppression("InnoDB: Table .*innodb_index_stats.* not found");
call mtr.add_suppression("InnoDB: Fetch of persistent statistics requested for table .*");
call mtr.add_suppression("InnoDB: Table mysql\\.innodb_index_stats has length mismatch in the column name stat_description\\. Please run mariadb-upgrade");
call mtr.add_suppression("InnoDB: Column stat_description in table mysql\\.innodb_index_stats is VARCHAR");

-- vertical_results

# corrupt the persistent storage
ALTER TABLE mysql.innodb_index_stats RENAME TO mysql.innodb_index_stats_;

CREATE TABLE test_ps_create_on_corrupted
(a INT, PRIMARY KEY (a))
ENGINE=INNODB STATS_PERSISTENT=1;

# check the stats (should have been generated using the old transient stats
# method)
SELECT seq_in_index, column_name, cardinality
FROM information_schema.statistics WHERE table_name = 'test_ps_create_on_corrupted'
ORDER BY index_name, seq_in_index;

SELECT table_rows, avg_row_length, max_data_length, index_length
FROM information_schema.tables WHERE table_name = 'test_ps_create_on_corrupted';

# restore the persistent storage
ALTER TABLE mysql.innodb_index_stats_ RENAME TO mysql.innodb_index_stats;

SET old_mode='';
ALTER TABLE mysql.innodb_index_stats
MODIFY stat_description VARCHAR(1024) COLLATE utf8_bin;
CREATE TABLE t (a INT) ENGINE=InnoDB STATS_PERSISTENT=1;
ALTER TABLE mysql.innodb_index_stats
MODIFY stat_description VARCHAR(1024) COLLATE utf8mb3_bin NOT NULL;

DROP TABLE t;

--source include/restart_mysqld.inc

-- vertical_results

# check again
SELECT seq_in_index, column_name, cardinality
FROM information_schema.statistics WHERE table_name = 'test_ps_create_on_corrupted'
ORDER BY index_name, seq_in_index;

SELECT table_rows, avg_row_length, max_data_length, index_length
FROM information_schema.tables WHERE table_name = 'test_ps_create_on_corrupted';

DROP TABLE test_ps_create_on_corrupted;