Bug #27710 Creating unique index fails during single user mode

  - enable indexes to be used always, if in single user, reject will happen before, and if it is kerlel doing stuff, it should always be allowed

mysql-test/r/bdb_notembedded.result

+set autocommit=1;
+reset master;
+create table bug16206 (a int);
+insert into bug16206 values(1);
+start transaction;
+insert into bug16206 values(2);
+commit;
+show binlog events;
+Log_name	Pos	Event_type	Server_id	End_log_pos	Info
+f	n	Format_desc	1	n	Server ver: VERSION, Binlog ver: 4
+f	n	Query	1	n	use `test`; create table bug16206 (a int)
+f	n	Query	1	n	use `test`; insert into bug16206 values(1)
+f	n	Query	1	n	use `test`; insert into bug16206 values(2)
+drop table bug16206;
+reset master;
+create table bug16206 (a int) engine=         bdb;
+insert into bug16206 values(0);
+insert into bug16206 values(1);
+start transaction;
+insert into bug16206 values(2);
+commit;
+insert into bug16206 values(3);
+show binlog events;
+Log_name	Pos	Event_type	Server_id	End_log_pos	Info
+f	n	Format_desc	1	n	Server ver: VERSION, Binlog ver: 4
+f	n	Query	1	n	use `test`; create table bug16206 (a int) engine=         bdb
+f	n	Query	1	n	use `test`; insert into bug16206 values(0)
+f	n	Query	1	n	use `test`; insert into bug16206 values(1)
+f	n	Query	1	n	use `test`; BEGIN
+f	n	Query	1	n	use `test`; insert into bug16206 values(2)
+f	n	Query	1	n	use `test`; COMMIT
+f	n	Query	1	n	use `test`; insert into bug16206 values(3)
+drop table bug16206;
+set autocommit=0;
+End of 5.0 tests

mysql-test/r/ndb_single_user.result

@@ -25,11 +25,12 @@ update t1 set b=b+100;
 update t1 set b=b+100 where a > 7;
 delete from t1;
 insert into t1 select * from t2;
+create unique index new_index on t1 (b,c);
 drop table t1;
 ERROR 42S02: Unknown table 't1'
-create index new_index on t1 (c);
+create index new_index_fail on t1 (c);
 ERROR HY000: Got error 299 'Operation not allowed or aborted due to single user mode' from ndbcluster
-insert into t1 values (1,1,0),(2,2,0),(3,3,0),(4,4,0),(5,5,0),(6,6,0),(7,7,0),(8,8,0),(9,9,0),(10,10,0);
+insert into t1 values (21,21,0),(22,22,0),(23,23,0),(24,24,0),(25,25,0),(26,26,0),(27,27,0),(28,28,0),(29,29,0),(210,210,0);
 ERROR HY000: Got error 299 'Operation not allowed or aborted due to single user mode' from ndbcluster
 select * from t1 where a = 1;
 ERROR HY000: Got error 299 'Operation not allowed or aborted due to single user mode' from ndbcluster

mysql-test/t/bdb_notembedded.test

+-- source include/not_embedded.inc
+-- source include/have_bdb.inc
+
+#
+# Bug #16206: Superfluous COMMIT event in binlog when updating BDB in autocommit mode
+#
+set autocommit=1;
+
+let $VERSION=`select version()`;
+
+reset master;
+create table bug16206 (a int);
+insert into bug16206 values(1);
+start transaction;
+insert into bug16206 values(2);
+commit;
+--replace_result $VERSION VERSION
+--replace_column 1 f 2 n 5 n
+show binlog events;
+drop table bug16206;
+
+reset master;
+create table bug16206 (a int) engine=         bdb;
+insert into bug16206 values(0);
+insert into bug16206 values(1);
+start transaction;
+insert into bug16206 values(2);
+commit;
+insert into bug16206 values(3);
+--replace_result $VERSION VERSION
+--replace_column 1 f 2 n 5 n
+show binlog events;
+drop table bug16206;
+
+set autocommit=0;
+
+
+--echo End of 5.0 tests

mysql-test/t/ndb_single_user.test

@@ -46,15 +46,18 @@ update t1 set b=b+100 where a > 7;
 # delete with full table scan
 delete from t1;
 insert into t1 select * from t2;
+# Bug #27710 Creating unique index fails during single user mode
+# - prior to bugfix this would fail
+create unique index new_index on t1 (b,c);
 
 # test some sql on other mysqld
 --connection server2
 --error 1051
 drop table t1;
 --error 1296
-create index new_index on t1 (c);
+create index new_index_fail on t1 (c);
 --error 1296
-insert into t1 values (1,1,0),(2,2,0),(3,3,0),(4,4,0),(5,5,0),(6,6,0),(7,7,0),(8,8,0),(9,9,0),(10,10,0);
+insert into t1 values (21,21,0),(22,22,0),(23,23,0),(24,24,0),(25,25,0),(26,26,0),(27,27,0),(28,28,0),(29,29,0),(210,210,0);
 --error 1296
 select * from t1 where a = 1;
 --error 1296

ndb/src/kernel/blocks/dbdict/Dbdict.cpp

@@ -6883,6 +6883,7 @@ Dbdict::createIndex_toCreateTable(Signal* signal, OpCreateIndexPtr opPtr)
   w.add(DictTabInfo::NoOfKeyAttr, indexPtr.p->noOfPrimkey);
   w.add(DictTabInfo::NoOfNullable, indexPtr.p->noOfNullAttr);
   w.add(DictTabInfo::KeyLength, indexPtr.p->tupKeyLength);
+  w.add(DictTabInfo::SingleUserMode, (Uint32)1);
   // write index key attributes
   AttributeRecordPtr aRecPtr;
   c_attributeRecordPool.getPtr(aRecPtr, tablePtr.p->firstAttribute);