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MDEV-33212: mysqldump uses MASTER_LOG_POS with dump-slave

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The patch for MDEV-15530 incorrectly added a column in the middle of SHOW
SLAVE STATUS output. This is wrong, as it breaks backwards compatibility
with existing applications and scripts. In this case, it even broke
mariadb-dump, which is included in the server source tree!

Revert the incorrect change, putting the new Replicate_Rewrite_DB at the end
of SHOW SLAVE STATUS output.

Add a testcase for the mariadb-dump --dump-slave wrong output problem. Also
add a testcase rpl.rpl_show_slave_status to hopefully prevent any future
incorrect additions to SHOW SLAVE STATUS.

Signed-off-by: Kristian Nielsen <knielsen@knielsen-hq.org>
This commit is contained in:
Kristian Nielsen
2024-03-08 15:23:42 +01:00
parent 11c75fc396
commit 23c48474f7
12 changed files with 175 additions and 28 deletions
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12
mysql-test/include/check-testcase.test
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@@ -32,7 +32,6 @@ if ($tmp)
--echo Relay_Master_Log_File #
--echo Slave_IO_Running No
--echo Slave_SQL_Running No
--echo Replicate_Rewrite_DB #
--echo Replicate_Do_DB #
--echo Replicate_Ignore_DB #
--echo Replicate_Do_Table #
@@ -74,13 +73,22 @@ if ($tmp)
--echo Slave_DDL_Groups #
--echo Slave_Non_Transactional_Groups #
--echo Slave_Transactional_Groups #
--echo Replicate_Rewrite_DB #
}
if (!$tmp) {
# Note: after WL#5177, fields 13-18 shall not be filtered-out.
--replace_column 4 # 5 # 6 # 7 # 8 # 9 # 10 # 13 # 14 # 15 # 16 # 17 # 18 # 19 # 23 # 24 # 25 # 26 # 27 # 41 # 42 # 43 # 45 # 52 # 53 # 54 #
--replace_column 4 # 5 # 6 # 7 # 8 # 9 # 10 # 13 # 14 # 15 # 16 # 17 # 18 # 22 # 23 # 24 # 25 # 26 # 40 # 41 # 42 # 44 # 51 # 52 # 53 # 54 #
query_vertical
SHOW SLAVE STATUS;
}
#
# Note, we must never, _ever_, add extra rows to this output of SHOW SLAVE
# STATUS, except at the very end, as this breaks backwards compatibility
# with applications or scripts that parse the output. This also means that
# we cannot add _any_ new rows in a GA version if a different row was
# already added in a later MariaDB version, as this would make it impossible
# to merge the change up while preserving the order of rows.
#
#
# Ensure that we don't get warnings from mysql.proc (used by check_mysqld)