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###############################################################################
# Bug#21205695 DROP TABLE MAY CAUSE SLAVES TO BREAK
#
# Problem:
# ========
# 1) Drop table queries are re-generated by server
# before writing the events(queries) into binlog
# for various reasons. If table name/db name contains
# a non regular characters (like latin characters),
# the generated query is wrong. Hence it breaks the
# replication.
# 2) In the edge case, when table name contains
# 64 latin characters (latin takes 2 bytes), server is
# throwing an assert (M_TBLLEN < 128)
#
# 3) In the edge case, when db name contains 64 latin
# characters, binlog contents are interpreted wrongly
# which is leading to replication issues.
#
###############################################################################
--source include/not_windows.inc
--source include/master-slave.inc
--let iter=1
# Change iteration to 4 after fixing Bug #22280214
while ($iter <= 2)
{
--connection master
if ($iter == 1)
{
--echo Test case 1:- table name with one character latin name.
--let $tblname= REPEAT(CHAR(131),1)
}
if ($iter == 2)
{
--echo Test case 2:- table name and database names with one character latin name.
--let $tblname= REPEAT(CHAR(131),1),"`.`",REPEAT(CHAR(131),1)
--eval SET @s:=CONCAT("CREATE DATABASE `",REPEAT(CHAR(131),1),"`")
PREPARE STMT FROM @s; EXECUTE stmt;
}
# After fixing Bug #22280214 DATADIR LOCATION IS LIMITING
# IDENTIFIER MAX LENGTH, the following two tests (iter 3 and 4) can be
# uncommented.
#if ($iter == 3)
#{
# --echo Test case 3:- table name and database names with 64 latin characters name.
# --let $tblname= REPEAT(CHAR(131),64),"`.`", REPEAT(CHAR(131),64)
# --eval SET @s:=CONCAT("CREATE DATABASE `",REPEAT(CHAR(131),64),"`")
# PREPARE STMT FROM @s; EXECUTE stmt;
#}
#if ($iter == 4)
#{
# --echo Test case 4:- table name and database names with 64 Euro(€) characters.
# --let $tblname= REPEAT(CHAR(226,130,172),64),"`.`", REPEAT(CHAR(226,130,172),64)
# --eval SET @s:=CONCAT("CREATE DATABASE `",REPEAT(CHAR(226,130,172),64),"`")
# PREPARE STMT FROM @s; EXECUTE stmt;
#}
--eval SET @s:=CONCAT("CREATE TABLE `",$tblname,"` (a INT)")
PREPARE STMT FROM @s; EXECUTE stmt;
--eval SET @s:=CONCAT("INSERT INTO `",$tblname,"` VALUES (1)")
PREPARE STMT FROM @s; EXECUTE stmt;
--eval SET @s:=CONCAT("DROP TABLE `",$tblname, "`")
PREPARE STMT FROM @s; EXECUTE stmt;
if ($iter == 2)
{
--eval SET @s:=CONCAT("DROP DATABASE `",REPEAT(CHAR(131),1),"`")
PREPARE STMT FROM @s; EXECUTE stmt;
}
# After fixing Bug #22280214 DATADIR LOCATION IS LIMITING
# IDENTIFIER MAX LENGTH, the following two tests (iter 3 and 4) can be
# uncommented.
#if ($iter == 3)
#{
# --eval SET @s:=CONCAT("DROP DATABASE `",REPEAT(CHAR(131),64),"`")
# PREPARE STMT FROM @s; EXECUTE stmt;
#}
#if ($iter == 4)
#{
# --eval SET @s:=CONCAT("DROP DATABASE `",REPEAT(CHAR(226,130,172),64),"`")
# PREPARE STMT FROM @s; EXECUTE stmt;
#}
--sync_slave_with_master
--inc $iter
}
--source include/rpl_end.inc