Merge mysql.com:/home/mydev/mysql-5.0-amerge

into  mysql.com:/home/mydev/mysql-5.1-amerge


mysql-test/r/lock_multi.result:
  Auto merged
mysql-test/r/merge.result:
  Auto merged
mysql-test/t/merge.test:
  Auto merged
mysql-test/t/lock_multi.test:
  Manual merge
sql/ha_myisammrg.h:
  Manual merge

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/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

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
   {