Merge svojtovich@bk-internal.mysql.com:/home/bk/mysql-5.0

into  may.pils.ru:/home/svoj/devel/bk/mysql-5.0-engines

mysql-test/r/merge.result

@@ -178,9 +178,9 @@ t3	CREATE TABLE `t3` (
 ) ENGINE=MRG_MyISAM DEFAULT CHARSET=latin1 UNION=(`t1`,`t2`)
 create table t4 (a int not null, b char(10), key(a)) engine=MERGE UNION=(t1,t2);
 select * from t4;
-ERROR HY000: Unable to open underlying table which is differently defined or of non-MyISAM type or doesn't exists
+ERROR HY000: Unable to open underlying table which is differently defined or of non-MyISAM type or doesn't exist
 alter table t4 add column c int;
-ERROR HY000: Unable to open underlying table which is differently defined or of non-MyISAM type or doesn't exists
+ERROR HY000: Unable to open underlying table which is differently defined or of non-MyISAM type or doesn't exist
 create database mysqltest;
 create table mysqltest.t6 (a int not null primary key auto_increment, message char(20));
 create table t5 (a int not null, b char(20), key(a)) engine=MERGE UNION=(test.t1,mysqltest.t6);
@@ -777,11 +777,11 @@ DROP TABLE t1, t2;
 CREATE TABLE t1(a INT) ENGINE=MEMORY;
 CREATE TABLE t2(a INT) ENGINE=MERGE UNION=(t1);
 SELECT * FROM t2;
-ERROR HY000: Unable to open underlying table which is differently defined or of non-MyISAM type or doesn't exists
+ERROR HY000: Unable to open underlying table which is differently defined or of non-MyISAM type or doesn't exist
 DROP TABLE t1, t2;
 CREATE TABLE t2(a INT) ENGINE=MERGE UNION=(t3);
 SELECT * FROM t2;
-ERROR HY000: Unable to open underlying table which is differently defined or of non-MyISAM type or doesn't exists
+ERROR HY000: Unable to open underlying table which is differently defined or of non-MyISAM type or doesn't exist
 DROP TABLE t2;
 create table t1 (b bit(1));
 create table t2 (b bit(1));

sql/ha_myisammrg.cc

@@ -326,9 +326,22 @@ void ha_myisammrg::info(uint flag)
   if (flag & HA_STATUS_CONST)
   {
     if (table->s->key_parts && info.rec_per_key)
+    {
+#ifdef HAVE_purify
+      /*
+        valgrind may be unhappy about it, because optimizer may access values
+        between file->keys and table->key_parts, that will be uninitialized.
+        It's safe though, because even if opimizer will decide to use a key
+        with such a number, it'll be an error later anyway.
+      */
+      bzero((char*) table->key_info[0].rec_per_key,
+            sizeof(table->key_info[0].rec_per_key) * table->key_parts);
+#endif
       memcpy((char*) table->key_info[0].rec_per_key,
 	     (char*) info.rec_per_key,
-	     sizeof(table->key_info[0].rec_per_key)*table->s->key_parts);
+             sizeof(table->key_info[0].rec_per_key) *
+             min(file->keys, table->s->key_parts));
+    }
   }
 }
 

sql/share/errmsg.txt

@@ -3813,7 +3813,7 @@ ER_WRONG_MRG_TABLE
 	cze "V-Bechny tabulky v MERGE tabulce nejsou definovny stejn"
 	dan "Tabellerne i MERGE er ikke defineret ens"
 	nla "Niet alle tabellen in de MERGE tabel hebben identieke gedefinities"
-	eng "Unable to open underlying table which is differently defined or of non-MyISAM type or doesn't exists"
+	eng "Unable to open underlying table which is differently defined or of non-MyISAM type or doesn't exist"
 	est "Kik tabelid MERGE tabeli mratluses ei ole identsed"
 	fre "Toutes les tables de la table de type MERGE n'ont pas la mme dfinition"
 	ger "Nicht alle Tabellen in der MERGE-Tabelle sind gleich definiert"

sql/sql_update.cc

@@ -1095,6 +1095,8 @@ multi_update::initialize_tables(JOIN *join)
     List<Item> temp_fields= *fields_for_table[cnt];
     ORDER     group;
 
+    if (ignore)
+      table->file->extra(HA_EXTRA_IGNORE_DUP_KEY);
     if (table == main_table)			// First table in join
     {
       if (safe_update_on_fly(join->join_tab, &temp_fields))
@@ -1210,7 +1212,11 @@ multi_update::~multi_update()
 {
   TABLE_LIST *table;
   for (table= update_tables ; table; table= table->next_local)
+  {
     table->table->no_keyread= table->table->no_cache= 0;
+    if (ignore)
+      table->table->file->extra(HA_EXTRA_NO_IGNORE_DUP_KEY);
+  }
 
   if (tmp_tables)
   {