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#
# Purpose:
# This test validates that CHANGE MASTER TO does not emit a spurious
# warning about implicitly changing Using_Gtid when the value is not
# actually changing.
#
# References:
# MDEV-37842: CHANGE MASTER TO is implicitly changing the value of
# 'Using_Gtid' from 'No' to 'No'
#
# Format independent test so just use one
--source include/have_binlog_format_mixed.inc
--source include/master-slave.inc
--connection slave
--source include/stop_slave.inc
--echo #
--echo # Test 1: CHANGE MASTER TO with relay_log_pos when Using_Gtid is
--echo # already No should NOT produce a spurious 'from No to No' warning
--echo #
CHANGE MASTER TO MASTER_USE_GTID=NO;
CHANGE MASTER TO relay_log_pos=0;
SHOW WARNINGS;
--echo #
--echo # Test 2: CHANGE MASTER TO with master_log_file/pos when Using_Gtid
--echo # is already No should NOT produce a warning
--echo #
--let $io_log_pos= query_get_value('SHOW SLAVE STATUS', Read_Master_Log_Pos, 1)
--let $io_log_file= query_get_value('SHOW SLAVE STATUS', Master_Log_File, 1)
--replace_result $io_log_file IO_LOG_FILE $io_log_pos IO_LOG_POS
--eval CHANGE MASTER TO master_log_pos=$io_log_pos, master_log_file='$io_log_file'
SHOW WARNINGS;
--echo #
--echo # Test 3: CHANGE MASTER TO with log coordinates when Using_Gtid is
--echo # Slave_Pos SHOULD produce a warning (value actually changes)
--echo #
CHANGE MASTER TO MASTER_USE_GTID=Slave_Pos;
--replace_result $io_log_file IO_LOG_FILE $io_log_pos IO_LOG_POS
--eval CHANGE MASTER TO master_log_pos=$io_log_pos, master_log_file='$io_log_file'
SHOW WARNINGS;
--echo #
--echo # Cleanup
--echo #
CHANGE MASTER TO MASTER_USE_GTID=Slave_Pos;
--source include/start_slave.inc
--source include/rpl_end.inc