table.cc, func_time.result:

  After merge fix

mysql-test/r/func_time.result

@@ -799,10 +799,10 @@ sec_to_time(1) + 0, from_unixtime(1) + 0;
 show create table t1;
 Table	Create Table
 t1	CREATE TABLE `t1` (
-  `now() - now()` double(23,6) NOT NULL default '0.000000',
-  `curtime() - curtime()` double(23,6) NOT NULL default '0.000000',
-  `sec_to_time(1) + 0` double(23,6) default NULL,
-  `from_unixtime(1) + 0` double(23,6) default NULL
+  `now() - now()` double(23,6) NOT NULL DEFAULT '0.000000',
+  `curtime() - curtime()` double(23,6) NOT NULL DEFAULT '0.000000',
+  `sec_to_time(1) + 0` double(23,6) DEFAULT NULL,
+  `from_unixtime(1) + 0` double(23,6) DEFAULT NULL
 ) ENGINE=MyISAM DEFAULT CHARSET=latin1
 drop table t1;
 End of 4.1 tests

sql/table.cc

@@ -1025,28 +1025,6 @@ static int open_binary_frm(THD *thd, TABLE_SHARE *share, uchar *head,
       if (share->key_info[key].flags & HA_FULLTEXT)
 	share->key_info[key].algorithm= HA_KEY_ALG_FULLTEXT;
 
-      if (primary_key >= MAX_KEY && (keyinfo->flags & HA_NOSAME))
-      {
-	/*
-	  If the UNIQUE key doesn't have NULL columns and is not a part key
-	  declare this as a primary key.
-	*/
-	primary_key=key;
-	for (i=0 ; i < keyinfo->key_parts ;i++)
-	{
-	  uint fieldnr= key_part[i].fieldnr;
-	  if (!fieldnr ||
-	      share->field[fieldnr-1]->null_ptr ||
-	      share->field[fieldnr-1]->key_length() !=
-	      key_part[i].length)
-	  {
-	    primary_key=MAX_KEY;		// Can't be used
-	    break;
-	  }
-	}
-      }
-
-
       for (i=0 ; i < keyinfo->key_parts ; key_part++,i++)
       {
         Field *field;