Merge bk-internal.mysql.com:/data0/bk/mysql-5.1

into  bk-internal.mysql.com:/data0/bk/mysql-5.1-kt

mysql-test/r/merge.result

@@ -779,3 +779,9 @@ insert into t1 values ("Monty"),("WAX"),("Walrus");
 alter table t1 engine=MERGE;
 ERROR HY000: Table storage engine for 't1' doesn't have this option
 drop table t1;
+create table t1 (b bit(1));
+create table t2 (b bit(1));
+create table tm (b bit(1)) engine = merge union = (t1,t2);
+select * from tm;
+b
+drop table tm, t1, t2;

mysql-test/r/partition_error.result

 drop table if exists t1;
+create table t1 (a int)
+engine = x
+partition by key (a);
+Warnings:
+Error	1286	Unknown table engine 'x'
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) DEFAULT NULL
+) ENGINE=MyISAM DEFAULT CHARSET=latin1 PARTITION BY KEY (a) 
+drop table t1;
+create table t1 (a int)
+engine = innodb
+partition by list (a)
+(partition p0 values in (0));
+alter table t1 engine = x;
+Warnings:
+Error	1286	Unknown table engine 'x'
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) DEFAULT NULL
+) ENGINE=InnoDB DEFAULT CHARSET=latin1 PARTITION BY LIST (a) (PARTITION p0 VALUES IN (0) ENGINE = InnoDB)
+drop table t1;
 partition by list (a)
 partitions 3
 (partition x1 values in (1,2,9,4) tablespace ts1,

mysql-test/t/lock_multi.test

@@ -157,7 +157,7 @@ use test;
 #
 connection default;
 
-# End of 5.0 tests
+#
 # Bug#19815 - CREATE/RENAME/DROP DATABASE can deadlock on a global read lock
 #
 connect (con1,localhost,root,,);
@@ -191,3 +191,4 @@ disconnect con2;
 --error ER_DB_DROP_EXISTS
 DROP DATABASE mysqltest_1;
 
+# End of 5.0 tests

mysql-test/t/merge.test

@@ -393,4 +393,13 @@ insert into t1 values ("Monty"),("WAX"),("Walrus");
 alter table t1 engine=MERGE;
 drop table t1;
 
+#
+# BUG#19648 - Merge table does not work with bit types
+#
+create table t1 (b bit(1));
+create table t2 (b bit(1));
+create table tm (b bit(1)) engine = merge union = (t1,t2);
+select * from tm;
+drop table tm, t1, t2;
+
 # End of 5.0 tests

mysql-test/t/partition_error.test

@@ -8,6 +8,24 @@
 drop table if exists t1;
 --enable_warnings
 
+#
+# Bug 20397: Partitions: Crash when using non-existing engine
+#
+create table t1 (a int)
+engine = x
+partition by key (a);
+show create table t1;
+drop table t1;
+
+create table t1 (a int)
+engine = innodb
+partition by list (a)
+(partition p0 values in (0));
+
+alter table t1 engine = x;
+show create table t1;
+drop table t1;
+
 #
 # Partition by key stand-alone error
 #
@@ -779,3 +797,5 @@ partition by range (a + (select count(*) from t1))
 -- error ER_PARTITION_FUNC_NOT_ALLOWED_ERROR
 create table t1 (a char(10))
 partition by hash (extractvalue(a,'a'));
+
+

sql/ha_myisammrg.h

@@ -38,7 +38,7 @@ class ha_myisammrg: public handler
     return (HA_REC_NOT_IN_SEQ | HA_AUTO_PART_KEY | HA_NO_TRANSACTIONS |
 	    HA_NULL_IN_KEY | HA_CAN_INDEX_BLOBS | HA_FILE_BASED |
             HA_CAN_INSERT_DELAYED | HA_ANY_INDEX_MAY_BE_UNIQUE |
-            HA_NO_COPY_ON_ALTER);
+            HA_CAN_BIT_FIELD | HA_NO_COPY_ON_ALTER);
   }
   ulong index_flags(uint inx, uint part, bool all_parts) const
   {

sql/sql_table.cc

@@ -5008,7 +5008,22 @@ bool mysql_alter_table(THD *thd,char *new_db, char *new_name,
 
   old_db_type= table->s->db_type;
   if (!create_info->db_type)
+  {
+    if (table->part_info &&
+        create_info->used_fields & HA_CREATE_USED_ENGINE)
+    {
+      /*
+        This case happens when the user specified
+        ENGINE = x where x is a non-existing storage engine
+        We set create_info->db_type to default_engine_type
+        to ensure we don't change underlying engine type
+        due to a erroneously given engine name.
+      */
+      create_info->db_type= table->part_info->default_engine_type;
+    }
+    else
       create_info->db_type= old_db_type;
+  }
 
 #ifdef WITH_PARTITION_STORAGE_ENGINE
   if (prep_alter_part_table(thd, table, alter_info, create_info, old_db_type,