bug#29562 default collation of ucs2_unicode_ci crashes slave

Problem: some pieces of code relied on the default character
set settings, which didn't work in case of default character set
ucs2.
Fix: Specifying character set explicitly, not to depend on
the default settings.


mysql-test/suite/rpl_ndb/r/rpl_ndb_ctype_ucs2_def.result:
  Recording correct test result
mysql-test/suite/rpl_ndb/t/disabled.def:
  Enabling test
sql/ha_ndbcluster_binlog.cc:
  Character set of the NDB helper tables should
  not rely of the default settings, to avoid creating
  tables in different character sets on master and slave.
  Adding explicit character set. UTF8 should be fine.
  
  character_set_client should not rely on the default
  character set settings, which can be ucs2. Helper SQL queries
  sent by NDB are all in pure ASCII. Setting client_character_set
  to latin1.
sql/log_event.cc:
  Adding assert to make sure that binary log does not have 
  queries in character set which parser does not understand
  (e.g. ucs2).

mysql-test/suite/rpl_ndb/r/rpl_ndb_ctype_ucs2_def.result

+stop slave;
+drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
+reset master;
+reset slave;
+drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9;
+start slave;
 show variables like 'collation_server';
 Variable_name	Value
 collation_server	ucs2_unicode_ci
@@ -5,5 +11,17 @@ show variables like "%character_set_ser%";
 Variable_name	Value
 character_set_server	ucs2
 DROP TABLE IF EXISTS t1;
-create table t1 (a int);
+create table t1 (a int) ENGINE=NDB;
 drop table t1;
+CREATE TABLE `t1` ( `nid` int(11) NOT NULL default '0',
+`nom` char(4) default NULL,
+`prenom` char(4) default NULL,
+PRIMARY KEY  (`nid`))
+ENGINE=ndbcluster;
+INSERT INTO t1 VALUES(1,"XYZ1","ABC1");
+select * from t1 order by nid;
+nid	nom	prenom
+1	XYZ1	ABC1
+select * from t1 order by nid;
+nid	nom	prenom
+1	XYZ1	ABC1

mysql-test/suite/rpl_ndb/t/disabled.def

@@ -17,7 +17,6 @@ rpl_ndb_2other           : BUG#21842 2007-08-30 tsmith test has never worked on
 rpl_ndb_dd_partitions    : BUG#19259 2006-04-21 rpl_ndb_dd_partitions fails on s/AMD
 rpl_ndb_ddl              : BUG#28798 2007-05-31  lars  Valgrind failure in NDB
 rpl_ndb_mix_innodb       : BUG#28123 rpl_ndb_mix_innodb.test casue slave to core on sol10-sparc-a
-rpl_ndb_ctype_ucs2_def   : BUG#27404 util thd mysql_parse sig11 when mysqld default multibyte charset
 rpl_ndb_extraColMaster   : BUG#30854 : Tables name show as binary in slave err msg on vm-win2003-64-b and Solaris
 
 # the below testcase have been reworked to avoid the bug, test contains comment, keep bug open

sql/ha_ndbcluster_binlog.cc

@@ -775,7 +775,7 @@ static int ndbcluster_create_ndb_apply_status_table(THD *thd)
                    " log_name VARCHAR(255) BINARY NOT NULL, "
                    " start_pos BIGINT UNSIGNED NOT NULL, "
                    " end_pos BIGINT UNSIGNED NOT NULL, "
-                   " PRIMARY KEY USING HASH (server_id) ) ENGINE=NDB");
+                   " PRIMARY KEY USING HASH (server_id) ) ENGINE=NDB CHARACTER SET utf8");
 
   const int no_print_error[4]= {ER_TABLE_EXISTS_ERROR,
                                 701,
@@ -835,7 +835,7 @@ static int ndbcluster_create_schema_table(THD *thd)
                    " id INT UNSIGNED NOT NULL,"
                    " version INT UNSIGNED NOT NULL,"
                    " type INT UNSIGNED NOT NULL,"
-                   " PRIMARY KEY USING HASH (db,name) ) ENGINE=NDB");
+                   " PRIMARY KEY USING HASH (db,name) ) ENGINE=NDB CHARACTER SET utf8");
 
   const int no_print_error[4]= {ER_TABLE_EXISTS_ERROR,
                                 701,
@@ -3959,6 +3959,7 @@ restart:
         i_ndb->setReportThreshEventFreeMem(ndb_report_thresh_binlog_mem_usage);
 
         bzero((char*) &row, sizeof(row));
+        thd->variables.character_set_client= &my_charset_latin1;
         injector::transaction trans;
         // pass table map before epoch
         {

sql/log_event.cc

@@ -1648,6 +1648,7 @@ Query_log_event::Query_log_event(THD* thd_arg, const char* query_arg,
   DBUG_ASSERT(thd_arg->variables.character_set_client->number < 256*256);
   DBUG_ASSERT(thd_arg->variables.collation_connection->number < 256*256);
   DBUG_ASSERT(thd_arg->variables.collation_server->number < 256*256);
+  DBUG_ASSERT(thd_arg->variables.character_set_client->mbminlen == 1);
   int2store(charset, thd_arg->variables.character_set_client->number);
   int2store(charset+2, thd_arg->variables.collation_connection->number);
   int2store(charset+4, thd_arg->variables.collation_server->number);