sql_base.cc, item.cc:

  Fixed bug #13411.
  Fixed name resolution for non-qualified reference to a view column
  in the HAVING clause.
view.result, view.test:
  Added a test case for bug #13411.


mysql-test/t/view.test:
  Added a test case for bug #13411.
mysql-test/r/view.result:
  Added a test case for bug #13411.
sql/item.cc:
  Fixed bug #13411.
  Fixed name resolution for non-qualified reference to a view column
  in the HAVING clause.
sql/sql_base.cc:
  Fixed bug #13411.
  Fixed name resolution for non-qualified reference to a view column
  in the HAVING clause.

mysql-test/r/view.result

@@ -2262,3 +2262,16 @@ WEEKDAY(date)
 1
 DROP TABLE t1;
 DROP VIEW  v1, v2, v3;
+CREATE TABLE t1 ( a int, b int );
+INSERT INTO t1 VALUES (1,1),(2,2),(3,3);
+CREATE VIEW v1 AS SELECT a,b FROM t1;
+SELECT t1.a FROM t1 GROUP BY t1.a HAVING a > 1;
+a
+2
+3
+SELECT v1.a FROM v1 GROUP BY v1.a HAVING a > 1;
+a
+2
+3
+DROP VIEW v1;
+DROP TABLE t1;

mysql-test/t/view.test

@@ -2139,3 +2139,18 @@ SELECT * FROM v3;
 
 DROP TABLE t1;
 DROP VIEW  v1, v2, v3;
+
+#
+# Bug #13411: crash when using non-qualified view column in HAVING clause 
+#
+
+CREATE TABLE t1 ( a int, b int );
+INSERT INTO t1 VALUES (1,1),(2,2),(3,3);
+CREATE VIEW v1 AS SELECT a,b FROM t1;
+SELECT t1.a FROM t1 GROUP BY t1.a HAVING a > 1;
+SELECT v1.a FROM v1 GROUP BY v1.a HAVING a > 1;
+
+DROP VIEW v1;
+DROP TABLE t1;
+
+

sql/item.cc

@@ -1687,7 +1687,7 @@ bool Item_field::eq(const Item *item, bool binary_cmp) const
     return 0;
   
   Item_field *item_field= (Item_field*) item;
-  if (item_field->field)
+  if (item_field->field && field)
     return item_field->field == field;
   /*
     We may come here when we are trying to find a function in a GROUP BY
@@ -1701,10 +1701,10 @@ bool Item_field::eq(const Item *item, bool binary_cmp) const
   */
   return (!my_strcasecmp(system_charset_info, item_field->name,
 			 field_name) &&
-	  (!item_field->table_name ||
+	  (!item_field->table_name || !table_name ||
 	   (!my_strcasecmp(table_alias_charset, item_field->table_name,
 			   table_name) &&
-	    (!item_field->db_name ||
+	    (!item_field->db_name || !db_name ||
 	     (item_field->db_name && !strcmp(item_field->db_name,
 					     db_name))))));
 }

sql/sql_base.cc

@@ -3459,7 +3459,7 @@ find_item_in_list(Item *find, List<Item> &items, uint *counter,
         }
       }
     }
-    else if (!table_name && (item->eq(find,0) ||
+    else if (!table_name && (find->eq(item,0) ||
 			     find->name && item->name &&
 			     !my_strcasecmp(system_charset_info, 
 					    item->name,find->name)))