Merge rkalimullin@bk-internal.mysql.com:/home/bk/mysql-4.1

into  mysql.com:/usr/home/ram/work/mysql-4.1

innobase/row/row0mysql.c

@@ -2237,14 +2237,14 @@ do not allow the discard. We also reserve the data dictionary latch. */
 		}
 	}
 funct_exit:	
+  	trx_commit_for_mysql(trx);
+
 	row_mysql_unlock_data_dictionary(trx);
 
 	if (graph) {
 		que_graph_free(graph);
 	}
 
-  	trx_commit_for_mysql(trx);
-
 	trx->op_info = "";
 
 	return((int) err);
@@ -2374,10 +2374,10 @@ row_import_tablespace_for_mysql(
 	}
 
 funct_exit:	
-	row_mysql_unlock_data_dictionary(trx);
-
   	trx_commit_for_mysql(trx);
 
+	row_mysql_unlock_data_dictionary(trx);
+
 	trx->op_info = "";
 
 	return((int) err);
@@ -2769,6 +2769,8 @@ fputs("	 InnoDB: You are trying to drop table ", stderr);
 	}
 funct_exit:
 
+  	trx_commit_for_mysql(trx);
+
 	if (locked_dictionary) {
 		row_mysql_unlock_data_dictionary(trx);	
 	}
@@ -2779,8 +2781,6 @@ funct_exit:
 
 	que_graph_free(graph);
 	
-  	trx_commit_for_mysql(trx);
-
 	trx->op_info = "";
 
 	srv_wake_master_thread();
@@ -2857,10 +2857,10 @@ loop:
 		}
 	}
 
-	row_mysql_unlock_data_dictionary(trx);
-	
 	trx_commit_for_mysql(trx);
 
+	row_mysql_unlock_data_dictionary(trx);
+	
 	trx->op_info = "";
 
 	return(err);
@@ -3272,6 +3272,8 @@ row_rename_table_for_mysql(
 		}
 	}
 funct_exit:	
+  	trx_commit_for_mysql(trx);
+
 	if (!recovering_temp_table) {
 		row_mysql_unlock_data_dictionary(trx);
 	}
@@ -3284,8 +3286,6 @@ funct_exit:
 		mem_heap_free(heap);
 	}
 	
-  	trx_commit_for_mysql(trx);
-
 	trx->op_info = "";
 
 	return((int) err);

mysql-test/r/func_in.result

@@ -202,24 +202,3 @@ select count(*) from t1 where id not in (1,2);
 count(*)
 1
 drop table t1;
-create table t1 (f1 char(1), f2 int);
-insert into t1 values (1,0),('a',1),('z',2);
-select f1 from t1 where f1 in (1,'z');
-f1
-1
-z
-select f2 from t1 where f2 in (1,'z');
-f2
-0
-1
-select f1 from t1 where 'z' in (1,f1);
-f1
-z
-select * from t1 where 'z' in (f2,f1);
-f1	f2
-z	2
-select * from t1 where 1 in (f2,f1);
-f1	f2
-1	0
-a	1
-drop table t1;

mysql-test/r/myisam.result

@@ -748,3 +748,11 @@ select count(id1) from t1 where id2 = 10;
 count(id1)
 5
 drop table t1;
+CREATE TABLE t1(a CHAR(9), b VARCHAR(7)) ENGINE=MyISAM;
+INSERT INTO t1(a) VALUES('xxxxxxxxx'),('xxxxxxxxx');
+UPDATE t1 AS ta1,t1 AS ta2 SET ta1.b='aaaaaa',ta2.b='bbbbbb';
+SELECT * FROM t1;
+a	b
+xxxxxxxxx	bbbbbb
+xxxxxxxxx	bbbbbb
+DROP TABLE t1;

mysql-test/t/func_in.test

@@ -109,16 +109,4 @@ select count(*) from t1 where id not in (1);
 select count(*) from t1 where id not in (1,2);
 drop table t1;
 
-#
-# Bug#18360 Incorrect type coercion in IN() results in false comparison
-#
-create table t1 (f1 char(1), f2 int);
-insert into t1 values (1,0),('a',1),('z',2);
-select f1 from t1 where f1 in (1,'z');
-select f2 from t1 where f2 in (1,'z');
-select f1 from t1 where 'z' in (1,f1);
-select * from t1 where 'z' in (f2,f1);
-select * from t1 where 1 in (f2,f1);
-drop table t1;
-
 # End of 4.1 tests

mysql-test/t/myisam.test

@@ -705,4 +705,13 @@ select count(*)   from t1 where id2 = 10;
 select count(id1) from t1 where id2 = 10;
 drop table t1;
 
+#
+# BUG#18036 - update of table joined to self reports table as crashed
+#
+CREATE TABLE t1(a CHAR(9), b VARCHAR(7)) ENGINE=MyISAM;
+INSERT INTO t1(a) VALUES('xxxxxxxxx'),('xxxxxxxxx');
+UPDATE t1 AS ta1,t1 AS ta2 SET ta1.b='aaaaaa',ta2.b='bbbbbb';
+SELECT * FROM t1;
+DROP TABLE t1;
+
 # End of 4.1 tests

sql/item_cmpfunc.cc

@@ -78,9 +78,6 @@ static void agg_result_type(Item_result *type, Item **items, uint nitems)
 
   NOTES
     Aggregation rules:
-    If all items are constants the type will be aggregated from all items.
-    If there are some non-constant items then only types of non-constant
-    items will be used for aggregation.
     If there are DATE/TIME fields/functions in the list and no string
     fields/functions in the list then:
       The INT_RESULT type will be used for aggregation instead of original
@@ -167,34 +164,25 @@ static void agg_cmp_type(THD *thd, Item_result *type, Item **items, uint nitems)
       }
     }
   }
-  /* Reset to 0 on first occurence of non-const item. 1 otherwise */
-  bool is_const= items[0]->const_item();
   /*
     If the first item is a date/time function then its result should be
     compared as int
   */
   if (field)
-  {
-    /* Suppose we are comparing dates and some non-constant items are present. */
+    /* Suppose we are comparing dates */
     type[0]= INT_RESULT;
-    is_const= 0;
-  }
   else
     type[0]= items[0]->result_type();
 
   for (i= 0; i < nitems ; i++)
   {
-    if (!items[i]->const_item())
-    {
-      Item_result result= field && items[i]->result_as_longlong() ?
-                            INT_RESULT : items[i]->result_type();
-      type[0]= is_const ? result : item_cmp_type(type[0], result);
-      is_const= 0;
-    }
-    else if (is_const)
-      type[0]= item_cmp_type(type[0], items[i]->result_type());
-    else if (field)
-      convert_constant_item(thd, field, &items[i]);
+    Item_result result= items[i]->result_type();
+    if (field &&
+         ((!items[i]->const_item() && items[i]->result_as_longlong()) ||
+         (items[i]->const_item() && convert_constant_item(thd, field,
+                                                          &items[i]))))
+      result= INT_RESULT;
+    type[0]= item_cmp_type(type[0], result);
   }
 
   if (res == Item::FUNC_ITEM && field)

sql/sql_update.cc

@@ -862,7 +862,7 @@ int multi_update::prepare(List<Item> &not_used_values,
   for (table_ref= all_tables;  table_ref; table_ref=table_ref->next)
   {
     TABLE *table=table_ref->table;
-    if (!(tables_to_update & table->map) && 
+    if ((tables_to_update & table->map) && 
 	mysql_lock_have_duplicate(thd, table, update_tables))
       table->no_cache= 1;			// Disable row cache
   }