-- source include/not_embedded.inc

# Dump all databases
--exec $MYSQL_DUMP -uroot --all-databases > $MYSQLTEST_VARDIR/tmp/bug20902791.sql

# Save a copy of the user/tables_priv, to restore later
# Otherwise the final mysql_upgrade will REPLACE and update timestamps etc.
CREATE TEMPORARY TABLE tmp_user AS SELECT * FROM mysql.user;
CREATE TEMPORARY TABLE tmp_tables_priv AS SELECT * FROM mysql.tables_priv;

# Remove the sys schema
DROP DATABASE sys;

# Reload the dump
--exec $MYSQL < $MYSQLTEST_VARDIR/tmp/bug20902791.sql

# The sys schema should not exist
SHOW DATABASES;

# Finally reload the sys schema to return to normal
--exec $MYSQL_UPGRADE --skip-verbose --force
SHOW DATABASES;

# Restore the saved privileges
TRUNCATE TABLE mysql.user;
INSERT INTO mysql.user (SELECT * FROM tmp_user);
DROP TEMPORARY TABLE tmp_user;

TRUNCATE TABLE mysql.tables_priv;
INSERT INTO mysql.tables_priv (SELECT * FROM tmp_tables_priv);
DROP TEMPORARY TABLE tmp_tables_priv;

FLUSH PRIVILEGES;