Merge bk-internal:/home/bk/mysql-5.0-maint

into  neptunus.(none):/home/msvensson/mysql/mysql-5.0-maint

myisam/mi_open.c

@@ -1264,13 +1264,30 @@ int mi_enable_indexes(MI_INFO *info)
   RETURN
     0  indexes are not disabled
     1  all indexes are disabled
-   [2  non-unique indexes are disabled - NOT YET IMPLEMENTED]
+    2  non-unique indexes are disabled
 */
 
 int mi_indexes_are_disabled(MI_INFO *info)
 {
   MYISAM_SHARE *share= info->s;
 
-  return (! mi_is_any_key_active(share->state.key_map) && share->base.keys);
+  /*
+    No keys or all are enabled. keys is the number of keys. Left shifted
+    gives us only one bit set. When decreased by one, gives us all all bits
+    up to this one set and it gets unset.
+  */
+  if (!share->base.keys ||
+      (mi_is_all_keys_active(share->state.key_map, share->base.keys)))
+    return 0;
+
+  /* All are disabled */
+  if (mi_is_any_key_active(share->state.key_map))
+    return 1;
+
+  /*
+    We have keys. Some enabled, some disabled.
+    Don't check for any non-unique disabled but return directly 2
+  */
+  return 2;
 }
 

myisam/myisampack.c

@@ -2923,6 +2923,8 @@ static void flush_bits(void)
     bits-= 8;
     *file_buffer.pos++= (uchar) (bit_buffer >> bits);
   }
+  if (file_buffer.pos >= file_buffer.end)
+    VOID(flush_buffer(~ (ulong) 0));
   file_buffer.bits= BITS_SAVED;
   file_buffer.bitbucket= 0;
 }

mysql-test/r/alter_table.result

@@ -541,6 +541,127 @@ create table t1 ( a timestamp );
 alter table t1 add unique ( a(1) );
 ERROR HY000: Incorrect sub part key; the used key part isn't a string, the used length is longer than the key part, or the storage engine doesn't support unique sub keys
 drop table t1;
+drop table if exists t1;
+create table t1 (a int, key(a));
+show indexes from t1;
+Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment
+t1	1	a	1	a	A	NULL	NULL	NULL	YES	BTREE	
+"this used not to disable the index"
+alter table t1 modify a int, disable keys;
+show indexes from t1;
+Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment
+t1	1	a	1	a	A	NULL	NULL	NULL	YES	BTREE	disabled
+alter table t1 enable keys;
+show indexes from t1;
+Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment
+t1	1	a	1	a	A	NULL	NULL	NULL	YES	BTREE	
+alter table t1 modify a bigint, disable keys;
+show indexes from t1;
+Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment
+t1	1	a	1	a	A	NULL	NULL	NULL	YES	BTREE	disabled
+alter table t1 enable keys;
+show indexes from t1;
+Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment
+t1	1	a	1	a	A	NULL	NULL	NULL	YES	BTREE	
+alter table t1 add b char(10), disable keys;
+show indexes from t1;
+Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment
+t1	1	a	1	a	A	NULL	NULL	NULL	YES	BTREE	disabled
+alter table t1 add c decimal(10,2), enable keys;
+show indexes from t1;
+Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment
+t1	1	a	1	a	A	NULL	NULL	NULL	YES	BTREE	
+"this however did"
+alter table t1 disable keys;
+show indexes from t1;
+Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment
+t1	1	a	1	a	A	NULL	NULL	NULL	YES	BTREE	disabled
+desc t1;
+Field	Type	Null	Key	Default	Extra
+a	bigint(20)	YES	MUL	NULL	
+b	char(10)	YES		NULL	
+c	decimal(10,2)	YES		NULL	
+alter table t1 add d decimal(15,5);
+"The key should still be disabled"
+show indexes from t1;
+Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment
+t1	1	a	1	a	A	NULL	NULL	NULL	YES	BTREE	disabled
+drop table t1;
+"Now will test with one unique index"
+create table t1(a int, b char(10), unique(a));
+show indexes from t1;
+Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment
+t1	0	a	1	a	A	NULL	NULL	NULL	YES	BTREE	
+alter table t1 disable keys;
+show indexes from t1;
+Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment
+t1	0	a	1	a	A	NULL	NULL	NULL	YES	BTREE	
+alter table t1 enable keys;
+"If no copy on noop change, this won't touch the data file"
+"Unique index, no change"
+alter table t1 modify a int, disable keys;
+show indexes from t1;
+Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment
+t1	0	a	1	a	A	NULL	NULL	NULL	YES	BTREE	
+"Change the type implying data copy"
+"Unique index, no change"
+alter table t1 modify a bigint, disable keys;
+show indexes from t1;
+Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment
+t1	0	a	1	a	A	NULL	NULL	NULL	YES	BTREE	
+alter table t1 modify a bigint;
+show indexes from t1;
+Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment
+t1	0	a	1	a	A	NULL	NULL	NULL	YES	BTREE	
+alter table t1 modify a int;
+show indexes from t1;
+Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment
+t1	0	a	1	a	A	NULL	NULL	NULL	YES	BTREE	
+drop table t1;
+"Now will test with one unique and one non-unique index"
+create table t1(a int, b char(10), unique(a), key(b));
+show indexes from t1;
+Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment
+t1	0	a	1	a	A	NULL	NULL	NULL	YES	BTREE	
+t1	1	b	1	b	A	NULL	NULL	NULL	YES	BTREE	
+alter table t1 disable keys;
+show indexes from t1;
+Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment
+t1	0	a	1	a	A	NULL	NULL	NULL	YES	BTREE	
+t1	1	b	1	b	A	NULL	NULL	NULL	YES	BTREE	disabled
+alter table t1 enable keys;
+"If no copy on noop change, this won't touch the data file"
+"The non-unique index will be disabled"
+alter table t1 modify a int, disable keys;
+show indexes from t1;
+Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment
+t1	0	a	1	a	A	NULL	NULL	NULL	YES	BTREE	
+t1	1	b	1	b	A	NULL	NULL	NULL	YES	BTREE	disabled
+alter table t1 enable keys;
+show indexes from t1;
+Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment
+t1	0	a	1	a	A	NULL	NULL	NULL	YES	BTREE	
+t1	1	b	1	b	A	NULL	NULL	NULL	YES	BTREE	
+"Change the type implying data copy"
+"The non-unique index will be disabled"
+alter table t1 modify a bigint, disable keys;
+show indexes from t1;
+Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment
+t1	0	a	1	a	A	NULL	NULL	NULL	YES	BTREE	
+t1	1	b	1	b	A	NULL	NULL	NULL	YES	BTREE	disabled
+"Change again the type, but leave the indexes as_is"
+alter table t1 modify a int;
+show indexes from t1;
+Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment
+t1	0	a	1	a	A	NULL	NULL	NULL	YES	BTREE	
+t1	1	b	1	b	A	NULL	NULL	NULL	YES	BTREE	disabled
+"Try the same. When data is no copied on similar tables, this is noop"
+alter table t1 modify a int;
+show indexes from t1;
+Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment
+t1	0	a	1	a	A	NULL	NULL	NULL	YES	BTREE	
+t1	1	b	1	b	A	NULL	NULL	NULL	YES	BTREE	disabled
+drop table t1;
 create database mysqltest;
 create table t1 (c1 int);
 alter table t1 rename mysqltest.t1;

mysql-test/r/information_schema.result

@@ -1027,7 +1027,7 @@ CREATE PROCEDURE p1 ()
 BEGIN
 SELECT 'foo' FROM DUAL;
 END |
-ERROR 42000: Access denied for user 'root'@'localhost' to database 'information_schema'
+ERROR 42000: Unknown database 'information_schema'
 select  ROUTINE_NAME from routines;
 ROUTINE_NAME
 grant all on information_schema.* to 'user1'@'localhost';

mysql-test/r/rpl_sp.result

@@ -467,6 +467,7 @@ DROP FUNCTION f1;
 drop table t1;
 set global log_bin_trust_function_creators=0;
 set global log_bin_trust_function_creators=0;
+reset master;
 drop database if exists mysqltest;
 drop database if exists mysqltest2;
 create database mysqltest;
@@ -475,19 +476,15 @@ use mysqltest2;
 create table t ( t integer );
 create procedure mysqltest.test() begin end;
 insert into t values ( 1 );
-show binlog events in 'master-bin.000001' from 8186;
+show binlog events in 'master-bin.000001' from 98;
 Log_name	Pos	Event_type	Server_id	End_log_pos	Info
-master-bin.000001	8186	Query	1	8317	use `test`; CREATE DEFINER=`root`@`localhost` FUNCTION f1() RETURNS INT RETURN 0
-master-bin.000001	8317	Query	1	8397	use `test`; DROP PROCEDURE p1
-master-bin.000001	8397	Query	1	8476	use `test`; DROP FUNCTION f1
-master-bin.000001	8476	Query	1	8552	use `test`; drop table t1
-master-bin.000001	8552	Query	1	8653	drop database if exists mysqltest
-master-bin.000001	8653	Query	1	8756	drop database if exists mysqltest2
-master-bin.000001	8756	Query	1	8849	create database mysqltest
-master-bin.000001	8849	Query	1	8944	create database mysqltest2
-master-bin.000001	8944	Query	1	9041	use `mysqltest2`; create table t ( t integer )
-master-bin.000001	9041	Query	1	9180	use `mysqltest2`; CREATE DEFINER=`root`@`localhost` procedure mysqltest.test() begin end
-master-bin.000001	9180	Query	1	9275	use `mysqltest2`; insert into t values ( 1 )
+master-bin.000001	98	Query	1	199	drop database if exists mysqltest
+master-bin.000001	199	Query	1	302	drop database if exists mysqltest2
+master-bin.000001	302	Query	1	395	create database mysqltest
+master-bin.000001	395	Query	1	490	create database mysqltest2
+master-bin.000001	490	Query	1	587	use `mysqltest2`; create table t ( t integer )
+master-bin.000001	587	Query	1	726	use `mysqltest2`; CREATE DEFINER=`root`@`localhost` procedure mysqltest.test() begin end
+master-bin.000001	726	Query	1	821	use `mysqltest2`; insert into t values ( 1 )
 create procedure `\\`.test() begin end;
 ERROR 42000: Incorrect database name '\\'
 drop database mysqltest;

mysql-test/t/alter_table.test

@@ -371,6 +371,103 @@ create table t1 ( a timestamp );
 alter table t1 add unique ( a(1) );
 drop table t1;
 
+#
+# Bug #24395: ALTER TABLE DISABLE KEYS doesn't work when modifying the table
+#
+# This problem happens if the data change is compatible.
+# Changing to the same type is compatible for example.
+#
+--disable_warnings
+drop table if exists t1;
+--enable_warnings
+create table t1 (a int, key(a));
+show indexes from t1;
+--echo "this used not to disable the index"
+alter table t1 modify a int, disable keys;
+show indexes from t1;
+
+alter table t1 enable keys;
+show indexes from t1;
+
+alter table t1 modify a bigint, disable keys;
+show indexes from t1;
+
+alter table t1 enable keys;
+show indexes from t1;
+
+alter table t1 add b char(10), disable keys;
+show indexes from t1;
+
+alter table t1 add c decimal(10,2), enable keys;
+show indexes from t1;
+
+--echo "this however did"
+alter table t1 disable keys;
+show indexes from t1;
+
+desc t1;
+
+alter table t1 add d decimal(15,5);
+--echo "The key should still be disabled"
+show indexes from t1;
+
+drop table t1;
+
+--echo "Now will test with one unique index"
+create table t1(a int, b char(10), unique(a));
+show indexes from t1;
+alter table t1 disable keys;
+show indexes from t1;
+alter table t1 enable keys;
+
+--echo "If no copy on noop change, this won't touch the data file"
+--echo "Unique index, no change"
+alter table t1 modify a int, disable keys;
+show indexes from t1;
+
+--echo "Change the type implying data copy"
+--echo "Unique index, no change"
+alter table t1 modify a bigint, disable keys;
+show indexes from t1;
+
+alter table t1 modify a bigint;
+show indexes from t1;
+
+alter table t1 modify a int;
+show indexes from t1;
+
+drop table t1;
+
+--echo "Now will test with one unique and one non-unique index"
+create table t1(a int, b char(10), unique(a), key(b));
+show indexes from t1;
+alter table t1 disable keys;
+show indexes from t1;
+alter table t1 enable keys;
+
+
+--echo "If no copy on noop change, this won't touch the data file"
+--echo "The non-unique index will be disabled"
+alter table t1 modify a int, disable keys;
+show indexes from t1;
+alter table t1 enable keys;
+show indexes from t1;
+
+--echo "Change the type implying data copy"
+--echo "The non-unique index will be disabled"
+alter table t1 modify a bigint, disable keys;
+show indexes from t1;
+
+--echo "Change again the type, but leave the indexes as_is"
+alter table t1 modify a int;
+show indexes from t1;
+--echo "Try the same. When data is no copied on similar tables, this is noop"
+alter table t1 modify a int;
+show indexes from t1;
+
+drop table t1;
+
+
 #
 # Bug#11493 - Alter table rename to default database does not work without
 #             db name qualifying

mysql-test/t/information_schema.test

@@ -715,7 +715,7 @@ create temporary table schemata(f1 char(10));
 # Bug #10708 SP's can use INFORMATION_SCHEMA as ROUTINE_SCHEMA
 #
 delimiter |;
---error 1044
+--error ER_BAD_DB_ERROR
 CREATE PROCEDURE p1 ()
 BEGIN
   SELECT 'foo' FROM DUAL;

mysql-test/t/rpl_sp.test

@@ -528,6 +528,7 @@ set global log_bin_trust_function_creators=0;
 # Bug22043: MySQL don't add "USE <DATABASE>" before "DROP PROCEDURE IF EXISTS"
 #
 connection master;
+reset master;
 --disable_warnings
 drop database if exists mysqltest;
 drop database if exists mysqltest2;
@@ -538,7 +539,7 @@ use mysqltest2;
 create table t ( t integer );
 create procedure mysqltest.test() begin end;
 insert into t values ( 1 );
-show binlog events in 'master-bin.000001' from 8186;
+show binlog events in 'master-bin.000001' from 98;
 --error ER_WRONG_DB_NAME
 create procedure `\\`.test() begin end;
 # Clean up

sql/sql_parse.cc

@@ -4244,11 +4244,10 @@ end_with_restore_list:
   {
     uint namelen;
     char *name;
-    int result;
+    int result= SP_INTERNAL_ERROR;
 
     DBUG_ASSERT(lex->sphead != 0);
     DBUG_ASSERT(lex->sphead->m_db.str); /* Must be initialized in the parser */
-
     /*
       Verify that the database name is allowed, optionally
       lowercase it.
@@ -4256,37 +4255,26 @@ end_with_restore_list:
     if (check_db_name(lex->sphead->m_db.str))
     {
       my_error(ER_WRONG_DB_NAME, MYF(0), lex->sphead->m_db.str);
-      delete lex->sphead;
-      lex->sphead= 0;
-      goto error;
+      goto create_sp_error;
     }
 
     /*
-      Check that a database with this name
-      exists.
+      Check that a database directory with this name
+      exists. Design note: This won't work on virtual databases
+      like information_schema.
     */
     if (check_db_dir_existence(lex->sphead->m_db.str))
     {
       my_error(ER_BAD_DB_ERROR, MYF(0), lex->sphead->m_db.str);
-      delete lex->sphead;
-      lex->sphead= 0;
-      goto error;
+      goto create_sp_error;
     }
 
     if (check_access(thd, CREATE_PROC_ACL, lex->sphead->m_db.str, 0, 0, 0,
                      is_schema_db(lex->sphead->m_db.str)))
-    {
-      delete lex->sphead;
-      lex->sphead= 0;
-      goto error;
-    }
+      goto create_sp_error;
 
-    if (end_active_trans(thd)) 
-    {
-      delete lex->sphead;
-      lex->sphead= 0;
-      goto error;
-    }
+    if (end_active_trans(thd))
+      goto create_sp_error;
 
     name= lex->sphead->name(&namelen);
 #ifdef HAVE_DLOPEN
@@ -4296,10 +4284,8 @@ end_with_restore_list:
 
       if (udf)
       {
-	my_error(ER_UDF_EXISTS, MYF(0), name);
-	delete lex->sphead;
-	lex->sphead= 0;
-	goto error;
+        my_error(ER_UDF_EXISTS, MYF(0), name);
+        goto create_sp_error;
       }
     }
 #endif
@@ -4307,7 +4293,7 @@ end_with_restore_list:
     /*
       If the definer is not specified, this means that CREATE-statement missed
       DEFINER-clause. DEFINER-clause can be missed in two cases:
-      
+
         - The user submitted a statement w/o the clause. This is a normal
           case, we should assign CURRENT_USER as definer.
 
@@ -4316,7 +4302,7 @@ end_with_restore_list:
           CURRENT_USER as definer here, but also we should mark this routine
           as NON-SUID. This is essential for the sake of backward
           compatibility.
-          
+
           The problem is the slave thread is running under "special" user (@),
           that actually does not exist. In the older versions we do not fail
           execution of a stored routine if its definer does not exist and
@@ -4341,13 +4327,9 @@ end_with_restore_list:
       if (ps_arena)
         thd->restore_active_arena(ps_arena, &original_arena);
 
+      /* Error has been already reported. */
       if (res)
-      {
-        /* Error has been already reported. */
-        delete lex->sphead;
-        lex->sphead= 0;
-        goto error;
-      }
+        goto create_sp_error;
 
       if (thd->slave_thread)
         lex->sphead->m_chistics->suid= SP_IS_NOT_SUID;
@@ -4358,7 +4340,7 @@ end_with_restore_list:
       that the current user has SUPER privilege (in order to create a stored
       routine under another user one must have SUPER privilege).
     */
-    
+
     else if (strcmp(lex->definer->user.str, thd->security_ctx->priv_user) ||
         my_strcasecmp(system_charset_info,
                       lex->definer->host.str,
@@ -4367,9 +4349,7 @@ end_with_restore_list:
       if (check_global_access(thd, SUPER_ACL))
       {
         my_error(ER_SPECIFIC_ACCESS_DENIED_ERROR, MYF(0), "SUPER");
-        delete lex->sphead;
-        lex->sphead= 0;
-        goto error;
+        goto create_sp_error;
       }
     }
 
@@ -4389,54 +4369,51 @@ end_with_restore_list:
 #endif /* NO_EMBEDDED_ACCESS_CHECKS */
 
     res= (result= lex->sphead->create(thd));
-    if (result == SP_OK)
-    {
+    switch (result) {
+    case SP_OK:
 #ifndef NO_EMBEDDED_ACCESS_CHECKS
       /* only add privileges if really neccessary */
       if (sp_automatic_privileges && !opt_noacl &&
           check_routine_access(thd, DEFAULT_CREATE_PROC_ACLS,
-      			       lex->sphead->m_db.str, name,
+                               lex->sphead->m_db.str, name,
                                lex->sql_command == SQLCOM_CREATE_PROCEDURE, 1))
       {
-        close_thread_tables(thd);
         if (sp_grant_privileges(thd, lex->sphead->m_db.str, name,
                                 lex->sql_command == SQLCOM_CREATE_PROCEDURE))
-          push_warning(thd, MYSQL_ERROR::WARN_LEVEL_WARN, 
-	  	       ER_PROC_AUTO_GRANT_FAIL,
-		       ER(ER_PROC_AUTO_GRANT_FAIL));
+          push_warning(thd, MYSQL_ERROR::WARN_LEVEL_WARN,
+                       ER_PROC_AUTO_GRANT_FAIL,
+                       ER(ER_PROC_AUTO_GRANT_FAIL));
+        close_thread_tables(thd);
       }
 #endif
-      lex->unit.cleanup();
-      delete lex->sphead;
-      lex->sphead= 0;
-      send_ok(thd);
-    }
-    else
-    {
-      switch (result) {
-      case SP_WRITE_ROW_FAILED:
-	my_error(ER_SP_ALREADY_EXISTS, MYF(0), SP_TYPE_STRING(lex), name);
-	break;
-      case SP_NO_DB_ERROR:
-	my_error(ER_BAD_DB_ERROR, MYF(0), lex->sphead->m_db.str);
-	break;
-      case SP_BAD_IDENTIFIER:
-	my_error(ER_TOO_LONG_IDENT, MYF(0), name);
-	break;
-      case SP_BODY_TOO_LONG:
-	my_error(ER_TOO_LONG_BODY, MYF(0), name);
-	break;
-      default:
-	my_error(ER_SP_STORE_FAILED, MYF(0), SP_TYPE_STRING(lex), name);
-	break;
-      }
-      lex->unit.cleanup();
-      delete lex->sphead;
-      lex->sphead= 0;
-      goto error;
-    }
     break;
-  }
+    case SP_WRITE_ROW_FAILED:
+      my_error(ER_SP_ALREADY_EXISTS, MYF(0), SP_TYPE_STRING(lex), name);
+    break;
+    case SP_BAD_IDENTIFIER:
+      my_error(ER_TOO_LONG_IDENT, MYF(0), name);
+    break;
+    case SP_BODY_TOO_LONG:
+      my_error(ER_TOO_LONG_BODY, MYF(0), name);
+    break;
+    default:
+      my_error(ER_SP_STORE_FAILED, MYF(0), SP_TYPE_STRING(lex), name);
+    break;
+    } /* end switch */
+
+    /*
+      Capture all errors within this CASE and
+      clean up the environment.
+    */
+create_sp_error:
+    lex->unit.cleanup();
+    delete lex->sphead;
+    lex->sphead= 0;
+    if (result != SP_OK )
+      goto error;
+    send_ok(thd);
+    break; /* break super switch */
+  } /* end case group bracket */
   case SQLCOM_CALL:
     {
       sp_head *sp;

sql/sql_table.cc

@@ -37,7 +37,9 @@ static char *make_unique_key_name(const char *field_name,KEY *start,KEY *end);
 static int copy_data_between_tables(TABLE *from,TABLE *to,
                                     List<create_field> &create, bool ignore,
 				    uint order_num, ORDER *order,
-				    ha_rows *copied,ha_rows *deleted);
+				    ha_rows *copied,ha_rows *deleted,
+                                    enum enum_enable_or_disable keys_onoff);
+
 static bool prepare_blob_field(THD *thd, create_field *sql_field);
 static bool check_engine(THD *thd, const char *table_name,
                          enum db_type *new_engine);                             
@@ -2933,6 +2935,54 @@ err:
 }
 
 
+/*
+  Manages enabling/disabling of indexes for ALTER TABLE
+
+  SYNOPSIS
+    alter_table_manage_keys()
+      table                  Target table
+      indexes_were_disabled  Whether the indexes of the from table
+                             were disabled
+      keys_onoff             ENABLE | DISABLE | LEAVE_AS_IS
+
+  RETURN VALUES
+    FALSE  OK
+    TRUE   Error
+*/
+
+static
+bool alter_table_manage_keys(TABLE *table, int indexes_were_disabled,
+                             enum enum_enable_or_disable keys_onoff)
+{
+  int error= 0;
+  DBUG_ENTER("alter_table_manage_keys");
+  DBUG_PRINT("enter", ("table=%p were_disabled=%d on_off=%d",
+             table, indexes_were_disabled, keys_onoff));
+
+  switch (keys_onoff) {
+  case ENABLE:
+    error= table->file->enable_indexes(HA_KEY_SWITCH_NONUNIQ_SAVE);
+    break;
+  case LEAVE_AS_IS:
+    if (!indexes_were_disabled)
+      break;
+    /* fall-through: disabled indexes */
+  case DISABLE:
+    error= table->file->disable_indexes(HA_KEY_SWITCH_NONUNIQ_SAVE);
+  }
+
+  if (error == HA_ERR_WRONG_COMMAND)
+  {
+    push_warning_printf(current_thd, MYSQL_ERROR::WARN_LEVEL_NOTE,
+                        ER_ILLEGAL_HA, ER(ER_ILLEGAL_HA), table->s->table_name);
+    error= 0;
+  } else if (error)
+    table->file->print_error(error, MYF(0));
+
+  DBUG_RETURN(error);
+}
+
+
 /*
   Alter table
 */
@@ -3586,8 +3636,20 @@ view_err:
     new_table->timestamp_field_type= TIMESTAMP_NO_AUTO_SET;
     new_table->next_number_field=new_table->found_next_number_field;
     error=copy_data_between_tables(table, new_table, create_list, ignore,
-				   order_num, order, &copied, &deleted);
+				   order_num, order, &copied, &deleted,
+                                   alter_info->keys_onoff);
   }
+  else if (!new_table)
+  {
+    VOID(pthread_mutex_lock(&LOCK_open));
+    wait_while_table_is_used(thd, table, HA_EXTRA_FORCE_REOPEN);
+    table->file->external_lock(thd, F_WRLCK);
+    alter_table_manage_keys(table, table->file->indexes_are_disabled(),
+                            alter_info->keys_onoff);
+    table->file->external_lock(thd, F_UNLCK);
+    VOID(pthread_mutex_unlock(&LOCK_open));
+  }
+
   thd->last_insert_id=next_insert_id;		// Needed for correct log
   thd->count_cuted_fields= CHECK_FIELD_IGNORE;
 
@@ -3815,7 +3877,8 @@ copy_data_between_tables(TABLE *from,TABLE *to,
                          bool ignore,
 			 uint order_num, ORDER *order,
 			 ha_rows *copied,
-			 ha_rows *deleted)
+			 ha_rows *deleted,
+                         enum enum_enable_or_disable keys_onoff)
 {
   int error;
   Copy_field *copy,*copy_end;
@@ -3848,6 +3911,9 @@ copy_data_between_tables(TABLE *from,TABLE *to,
   if (to->file->external_lock(thd, F_WRLCK))
     DBUG_RETURN(-1);
 
+  /* We need external lock before we can disable/enable keys */
+  alter_table_manage_keys(to, from->file->indexes_are_disabled(), keys_onoff);
+
   /* We can abort alter table for any table type */
   thd->no_trans_update= 0;
   thd->abort_on_warning= !ignore && test(thd->variables.sql_mode &