func_str.result, func_str.test:

  Added a test case for bug #10124.
sql_select.h, item_subselect.cc, sql_select.cc:
  Fixed bug #10124.
  The copy method of the store_key classes can return
  STORE_KEY_OK=0, STORE_KEY_FATAL=1, STORE_KEY_CONV=2 now.
field.cc:
  Fixed bug #10124.
  When ussuing a warning the store methods return 2 instead of 1 now.


sql/field.cc:
  Fixed bug #10124.
  When ussuing a warning the store methods return 2 instead of 1 now.
sql/sql_select.cc:
  Fixed bug #10124.
  The copy method of the store_key classes can return
  STORE_KEY_OK=0, STORE_KEY_FATAL=1, STORE_KEY_CONV=2 now.
sql/item_subselect.cc:
  Fixed bug #10124.
  The copy method of the store_key classes can return
  STORE_KEY_OK=0, STORE_KEY_FATAL=1, STORE_KEY_CONV=2 now.
sql/sql_select.h:
  Fixed bug #10124.
  The copy method of the store_key classes can return
  STORE_KEY_OK=0, STORE_KEY_FATAL=1, STORE_KEY_CONV=2 now.
mysql-test/t/func_str.test:
  Added a test case for bug #10124.
mysql-test/r/func_str.result:
  Added a test case for bug #10124.

mysql-test/r/func_str.result

@@ -789,3 +789,14 @@ field(0,NULL,1,0)	field("",NULL,"bar","")	field(0.0,NULL,1.0,0.0)
 select field(NULL,1,2,NULL), field(NULL,1,2,0);
 field(NULL,1,2,NULL)	field(NULL,1,2,0)
 0	0
+CREATE TABLE t1 (str varchar(20) PRIMARY KEY);
+CREATE TABLE t2 (num int primary key);
+INSERT INTO t1 VALUES ('notnumber');
+INSERT INTO t2 VALUES (0), (1);
+SELECT * FROM t1, t2 WHERE num=str;
+str	num
+notnumber	0
+SELECT * FROM t1, t2 WHERE num=substring(str from 1 for 6);
+str	num
+notnumber	0
+DROP TABLE t1,t2;

mysql-test/t/func_str.test

@@ -527,3 +527,17 @@ DROP TABLE t1, t2;
 #
 select field(0,NULL,1,0), field("",NULL,"bar",""), field(0.0,NULL,1.0,0.0);
 select field(NULL,1,2,NULL), field(NULL,1,2,0);
+
+#
+# Bug #10124: access by integer index with a string key that is not a number  
+#
+
+CREATE TABLE t1 (str varchar(20) PRIMARY KEY);
+CREATE TABLE t2 (num int primary key);
+INSERT INTO t1 VALUES ('notnumber');
+INSERT INTO t2 VALUES (0), (1); 
+
+SELECT * FROM t1, t2 WHERE num=str;
+SELECT * FROM t1, t2 WHERE num=substring(str from 1 for 6);
+
+DROP TABLE t1,t2;

sql/field.cc

@@ -2473,7 +2473,10 @@ int Field_long::store(const char *from,uint len,CHARSET_INFO *cs)
   if (error ||
       (from+len != end && table->in_use->count_cuted_fields &&
        !test_if_int(from,len,end,cs)))
-    error= 1;
+  {
+    if (error != 1)
+      error= 2;
+  }
 #if SIZEOF_LONG > 4
   if (unsigned_flag)
   {
@@ -2501,10 +2504,7 @@ int Field_long::store(const char *from,uint len,CHARSET_INFO *cs)
   }
 #endif
   if (error)
-  {
     set_warning(MYSQL_ERROR::WARN_LEVEL_WARN, ER_WARN_DATA_TRUNCATED, 1);
-    error= 1;
-  }
 #ifdef WORDS_BIGENDIAN
   if (table->db_low_byte_first)
   {
@@ -2769,9 +2769,12 @@ int Field_longlong::store(const char *from,uint len,CHARSET_INFO *cs)
   if (error ||
       (from+len != end && table->in_use->count_cuted_fields &&
        !test_if_int(from,len,end,cs)))
+  {
+    if (error != 1)
     {
       set_warning(MYSQL_ERROR::WARN_LEVEL_WARN, ER_WARN_DATA_TRUNCATED, 1);
-    error= 1;
+      error= 2;
+    }
   }
 #ifdef WORDS_BIGENDIAN
   if (table->db_low_byte_first)
@@ -2991,7 +2994,7 @@ int Field_float::store(const char *from,uint len,CHARSET_INFO *cs)
   double nr= my_strntod(cs,(char*) from,len,&end,&error);
   if (error || ((uint) (end-from) != len && table->in_use->count_cuted_fields))
   {
-    error= 1;
+    error= 2;
     set_warning(MYSQL_ERROR::WARN_LEVEL_WARN, ER_WARN_DATA_TRUNCATED, 1);
   }
   Field_float::store(nr);
@@ -3277,7 +3280,7 @@ int Field_double::store(const char *from,uint len,CHARSET_INFO *cs)
   double nr= my_strntod(cs,(char*) from, len, &end, &error);
   if (error || ((uint) (end-from) != len && table->in_use->count_cuted_fields))
   {
-    error= 1;
+    error= 2;
     set_warning(MYSQL_ERROR::WARN_LEVEL_WARN, ER_WARN_DATA_TRUNCATED, 1);
   }
   Field_double::store(nr);
@@ -3659,6 +3662,8 @@ int Field_timestamp::store(const char *from,uint len,CHARSET_INFO *cs)
       error= 1;
     }
   }
+  if (error > 1)
+    error= 2;
 
 #ifdef WORDS_BIGENDIAN
   if (table->db_low_byte_first)
@@ -3947,7 +3952,7 @@ int Field_time::store(const char *from,uint len,CHARSET_INFO *cs)
   if (str_to_time(from, len, &ltime, &error))
   {
     tmp=0L;
-    error= 1;
+    error= 2;
     set_datetime_warning(MYSQL_ERROR::WARN_LEVEL_WARN, ER_WARN_DATA_TRUNCATED,
                          from, len, MYSQL_TIMESTAMP_TIME, 1);
   }
@@ -3969,6 +3974,8 @@ int Field_time::store(const char *from,uint len,CHARSET_INFO *cs)
                            from, len, MYSQL_TIMESTAMP_TIME, !error);
       error= 1;
     }
+    if (error > 1)
+      error= 2;
   }
   
   if (ltime.neg)
@@ -4298,7 +4305,7 @@ int Field_date::store(const char *from, uint len,CHARSET_INFO *cs)
   if (str_to_datetime(from, len, &l_time, 1, &error) <= MYSQL_TIMESTAMP_ERROR)
   {
     tmp=0;
-    error= 1;
+    error= 2;
   }
   else
     tmp=(uint32) l_time.year*10000L + (uint32) (l_time.month*100+l_time.day);
@@ -4489,7 +4496,7 @@ int Field_newdate::store(const char *from,uint len,CHARSET_INFO *cs)
   if (str_to_datetime(from, len, &l_time, 1, &error) <= MYSQL_TIMESTAMP_ERROR)
   {
     tmp=0L;
-    error= 1;
+    error= 2;
   }
   else
     tmp= l_time.day + l_time.month*32 + l_time.year*16*32;
@@ -4931,7 +4938,7 @@ int Field_string::store(const char *from,uint length,CHARSET_INFO *cs)
     from= tmpstr.ptr();
     length=  tmpstr.length();
     if (conv_errors)
-      error= 1;
+      error= 2;
   }
 
   /* 
@@ -4955,7 +4962,7 @@ int Field_string::store(const char *from,uint length,CHARSET_INFO *cs)
     from+= field_charset->cset->scan(field_charset, from, end,
 				     MY_SEQ_SPACES);
     if (from != end)
-      error= 1;
+      error= 2;
   }
   if (error)
     set_warning(MYSQL_ERROR::WARN_LEVEL_WARN, ER_WARN_DATA_TRUNCATED, 1);
@@ -5210,12 +5217,12 @@ int Field_varstring::store(const char *from,uint length,CHARSET_INFO *cs)
     from= tmpstr.ptr();
     length=  tmpstr.length();
     if (conv_errors)
-      error= 1;
+      error= 2;
   }
   if (length > field_length)
   {
     length=field_length;
-    error= 1;
+    error= 2;
   }
   if (error)
     set_warning(MYSQL_ERROR::WARN_LEVEL_WARN, ER_WARN_DATA_TRUNCATED, 1);
@@ -5568,7 +5575,7 @@ int Field_blob::store(const char *from,uint length,CHARSET_INFO *cs)
       from= tmpstr.ptr();
       length=  tmpstr.length();
       if (conv_errors)
-        error= 1;
+        error= 2;
     }
     
     copy_length= max_data_length();
@@ -5583,7 +5590,7 @@ int Field_blob::store(const char *from,uint length,CHARSET_INFO *cs)
                                                       copy_length,
                                                       &well_formed_error);
     if (copy_length < length)
-      error= 1;
+      error= 2;
     Field_blob::store_length(copy_length);
     if (was_conversion || table->copy_blobs || copy_length <= MAX_FIELD_WIDTH)
     {						// Must make a copy

sql/item_subselect.cc

@@ -1361,7 +1361,7 @@ int subselect_uniquesubquery_engine::exec()
   TABLE *table= tab->table;
   for (store_key **copy=tab->ref.key_copy ; *copy ; copy++)
   {
-    if (tab->ref.key_err= (*copy)->copy())
+    if ((tab->ref.key_err= (*copy)->copy()) & 1)
     {
       table->status= STATUS_NOT_FOUND;
       DBUG_RETURN(1);
@@ -1414,7 +1414,7 @@ int subselect_indexsubquery_engine::exec()
 
   for (store_key **copy=tab->ref.key_copy ; *copy ; copy++)
   {
-    if (tab->ref.key_err= (*copy)->copy())
+    if ((tab->ref.key_err= (*copy)->copy()) & 1)
     {
       table->status= STATUS_NOT_FOUND;
       DBUG_RETURN(1);

sql/sql_select.cc

@@ -8223,10 +8223,14 @@ cp_buffer_from_ref(THD *thd, TABLE_REF *ref)
   enum enum_check_fields save_count_cuted_fields= thd->count_cuted_fields;
   thd->count_cuted_fields= CHECK_FIELD_IGNORE;
   for (store_key **copy=ref->key_copy ; *copy ; copy++)
-    if ((*copy)->copy())
+  {
+    int res;
+    if ((res= (*copy)->copy()))
     {
       thd->count_cuted_fields= save_count_cuted_fields;
-      return 1;					// Something went wrong
+      if ((res= res & 1))
+        return res;                               // Something went wrong
+    }
   }
   thd->count_cuted_fields= save_count_cuted_fields;
   return 0;

sql/sql_select.h

@@ -356,6 +356,7 @@ class store_key :public Sql_alloc
   char *null_ptr;
   char err;
  public:
+  enum store_key_result { STORE_KEY_OK, STORE_KEY_FATAL, STORE_KEY_CONV };
   store_key(THD *thd, Field *field_arg, char *ptr, char *null, uint length)
     :null_ptr(null),err(0)
   {
@@ -371,7 +372,7 @@ class store_key :public Sql_alloc
     }
   }
   virtual ~store_key() {}			/* Not actually needed */
-  virtual bool copy()=0;
+  virtual enum store_key_result copy()=0;
   virtual const char *name() const=0;
 };
 
@@ -392,10 +393,10 @@ class store_key_field: public store_key
       copy_field.set(to_field,from_field,0);
     }
   }
-  bool copy()
+  enum store_key_result copy()
   {
     copy_field.do_copy(&copy_field);
-    return err != 0;
+    return err != 0 ? STORE_KEY_FATAL : STORE_KEY_OK;
   }
   const char *name() const { return field_name; }
 };
@@ -412,9 +413,11 @@ public:
 	       null_ptr_arg ? null_ptr_arg : item_arg->maybe_null ?
 	       &err : NullS, length), item(item_arg)
   {}
-  bool copy()
+  enum store_key_result copy()
   {
-    return item->save_in_field(to_field, 1) || err != 0;
+    int res= item->save_in_field(to_field, 1);
+    return (err != 0 || res > 2 ? STORE_KEY_FATAL : (store_key_result) res); 
+	                 
   }
   const char *name() const { return "func"; }
 };
@@ -432,15 +435,19 @@ public:
 		    &err : NullS, length, item_arg), inited(0)
   {
   }
-  bool copy()
+  enum store_key_result copy()
   {
+    int res;
     if (!inited)
     {
       inited=1;
-      if (item->save_in_field(to_field, 1))
-	err= 1;
+      if ((res= item->save_in_field(to_field, 1)))
+      {       
+        if (!err)
+          err= res;
+      }
     }
-    return err != 0;
+    return (err > 2 ?  STORE_KEY_FATAL : (store_key_result) err);
   }
   const char *name() const { return "const"; }
 };