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# ==== Purpose ====
#
# The default collation for utf8mb4 changed between 5.7 and 8.0. This test
# checks that replication does not break when an 8.0 slave replicates
# transactions with different default collation from an 5.7 master. It also
# checks that events replicated from the 8.0 slave to a second 8.0 slave are
# correctly applied.
#
# ==== Implementation ====
#
# Simulate the topology 5.7 master -> 8.0 slave_1 -> 8.0 slave_2 by making
# slave_1 replicate a potencially problematic binary log generated by a 5.7
# server.
# Check that that binary log is replicated successfully in slave_1. Finally,
# replicate it to slave_2.
#
# ==== References ====
#
# BUG#27081073 RENAMING A COLUMN BREAKS REPLICATION FROM 5.7 TO 8.0 BECAUSE OF
# IMPL. COLLATION
--source include/have_binlog_format_statement.inc
# simulate the following replication chain:
# 5.7 master -> 8.0 slave -> 8.0 slave
--let $rpl_topology=1->2, 2->3
--let $rpl_skip_start_slave= 1
--source include/rpl_init.inc
--let $rpl_connection_name= server_2
--source include/rpl_connection.inc
--let $MYSQLD_SLAVE_DATADIR= `select @@datadir`
# clear slave datadir
RESET SLAVE;
--remove_file $MYSQLD_SLAVE_DATADIR/slave-relay-bin.000001
--remove_file $MYSQLD_SLAVE_DATADIR/slave-relay-bin.index
# copy the binlog with the following statements:
#
#--source include/have_binlog_format_statement.inc
#
# CREATE TABLE `foobar` (`id` int(10) unsigned NOT NULL AUTO_INCREMENT,
# `foo` varchar(100) CHARACTER SET utf8mb4 NOT NULL,
# PRIMARY KEY (`id`), UNIQUE KEY `id_foo` (`foo`)
# ) ENGINE=InnoDB AUTO_INCREMENT=12345
# DEFAULT CHARSET=latin1;
#
# INSERT INTO foobar (foo) VALUES (0x666F6F626172406578616D706C652E636F6D);
# INSERT INTO foobar (foo) VALUES (0x666F6F626172406578616D706C652E636F6DD98B);
#
# ALTER TABLE `foobar` CHANGE `foo` `old_foo` varchar(100) CHARACTER SET
# utf8mb4 NOT NULL;
# DROP TABLE `foobar`;
#
# on Win* platforms path separator is backslash
if (`SELECT CONVERT(@@VERSION_COMPILE_OS USING latin1) IN ('Win32', 'Win64', 'Windows')`)
{
--copy_file std_data/slave-relay-bin_win.index $MYSQLD_SLAVE_DATADIR/slave-relay-bin.index
}
if (`SELECT CONVERT(@@VERSION_COMPILE_OS USING latin1) NOT IN ('Win32', 'Win64', 'Windows')`)
{
--copy_file std_data/slave-relay-bin_linux.index $MYSQLD_SLAVE_DATADIR/slave-relay-bin.index
}
--copy_file std_data/rpl_cross_version_default_utf8mb4_collation.000001 $MYSQLD_SLAVE_DATADIR/slave-relay-bin.000001
--source include/start_slave.inc
# wait until slave reads and applies all events from 5.7 relay log without
# errors
--let $slave_param= Slave_SQL_Running_State
--let $slave_param_value= Replica has read all relay log; waiting for more updates
--source include/wait_for_slave_param.inc
# check that the second 8.0 slave replicates without errors
--let $rpl_connection_name= server_3
--source include/rpl_connection.inc
RESET SLAVE;
--source include/start_slave.inc
--let $rpl_connection_name= server_2
--source include/rpl_connection.inc
--let $sync_slave_connection= server_3
--source include/sync_slave_sql_with_master.inc
# clean up
--source include/stop_slave.inc
RESET SLAVE;
--let $rpl_connection_name= server_2
--source include/rpl_connection.inc
--source include/stop_slave.inc
RESET SLAVE;
--let $rpl_only_running_threads= 1
--source include/rpl_end.inc
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