MDEV-8569 build_table_filename() doesn't support temporary tables.

        Temporary tables support added for RENAME and ALTER TABLE.

mysql-test/r/grant2.result

@@ -708,7 +708,7 @@ mysqltest_db1.t3	preload_keys	status	OK
 # RENAME (doesn't work for temporary tables, thus should fail).
 #
 RENAME TABLE t3 TO t3_1;
-ERROR 42000: DROP, ALTER command denied to user 'mysqltest_u1'@'localhost' for table 't3'
+ERROR 42000: INSERT, CREATE command denied to user 'mysqltest_u1'@'localhost' for table 't3_1'
 #
 # HANDLER OPEN/READ/CLOSE.
 #

mysql-test/r/temp_table.result

@@ -291,3 +291,6 @@ test.t1	repair	status	OK
 test.t2	repair	status	OK
 test.t3	repair	status	OK
 DROP TABLES t1, t2, t3;
+CREATE TEMPORARY TABLE t1 (a int);
+RENAME TABLE t1 TO t2;
+DROP TABLE t2;

mysql-test/suite/innodb/r/innodb-fk-warnings.result

@@ -70,6 +70,20 @@ Level	Code	Message
 Warning	150	Alter  table `mysqld.1`.`t1` with foreign key constraint failed. Referenced table `mysqld.1`.`t1` not found in the data dictionary close to foreign key(b) references t1(a).
 Error	1005	Can't create table `test`.`#sql-temporary` (errno: 150 "Foreign key constraint is incorrectly formed")
 Warning	1215	Cannot add foreign key constraint
+create temporary table t2(a int, foreign key(a) references t1(a)) engine=innodb;
+ERROR HY000: Can't create table `test`.`t2` (errno: 150 "Foreign key constraint is incorrectly formed")
+show warnings;
+Level	Code	Message
+Warning	150	Create  table `mysqld.1`.`t2` with foreign key constraint failed. Referenced table `mysqld.1`.`t1` not found in the data dictionary near 'foreign key(a) references t1(a)) engine=innodb'.
+Error	1005	Can't create table `test`.`t2` (errno: 150 "Foreign key constraint is incorrectly formed")
+Warning	1215	Cannot add foreign key constraint
+alter table t1 add foreign key(b) references t1(a);
+ERROR HY000: Can't create table `test`.`#sql-temporary` (errno: 150 "Foreign key constraint is incorrectly formed")
+show warnings;
+Level	Code	Message
+Warning	150	Alter  table `mysqld.1`.`t1` with foreign key constraint failed. Referenced table `mysqld.1`.`t1` not found in the data dictionary near 'foreign key(b) references t1(a)'.
+Error	1005	Can't create table `test`.`#sql-temporary` (errno: 150 "Foreign key constraint is incorrectly formed")
+Warning	1215	Cannot add foreign key constraint
 drop table t1;
 create table t1(a int not null primary key, b int, key(b)) engine=innodb;
 alter table t1 add foreign key(a,b) references t1(a);

mysql-test/suite/innodb/t/innodb-fk-warnings.test

@@ -87,16 +87,16 @@ create temporary table t1(a int not null primary key, b int, key(b)) engine=inno
 --echo Warning	150	Alter  table `mysqld.1`.`t1` with foreign key constraint failed. Referenced table `mysqld.1`.`t1` not found in the data dictionary close to foreign key(b) references t1(a).
 --echo Error	1005	Can't create table `test`.`#sql-temporary` (errno: 150 "Foreign key constraint is incorrectly formed")
 --echo Warning	1215	Cannot add foreign key constraint
-#--replace_regex /#sql-[0-9a-f_]*`/#sql-temporary`/
-#--error 1005
-#create temporary table t2(a int, foreign key(a) references t1(a)) engine=innodb;
-#--replace_regex /#sql-[0-9a-f_]*`/#sql-temporary`/
-#show warnings;
-#--replace_regex /#sql-[0-9a-f_]*`/#sql-temporary`/
-#--error 1005
-#alter table t1 add foreign key(b) references t1(a);
-#--replace_regex /#sql-[0-9a-f_]*`/#sql-temporary`/
-#show warnings;
+--replace_regex /#sql-[0-9a-f_]*`/#sql-temporary`/
+--error 1005
+create temporary table t2(a int, foreign key(a) references t1(a)) engine=innodb;
+--replace_regex /#sql-[0-9a-f_]*`/#sql-temporary`/
+show warnings;
+--replace_regex /#sql-[0-9a-f_]*`/#sql-temporary`/
+--error 1005
+alter table t1 add foreign key(b) references t1(a);
+--replace_regex /#sql-[0-9a-f_]*`/#sql-temporary`/
+show warnings;
 drop table t1;
 
 #

mysql-test/t/temp_table.test

@@ -319,3 +319,7 @@ INSERT INTO t3 VALUES (101), (102), (103);
 REPAIR TABLE t1, t2, t3;
 
 DROP TABLES t1, t2, t3;
+
+CREATE TEMPORARY TABLE t1 (a int);
+RENAME TABLE t1 TO t2;
+DROP TABLE t2;

sql/sql_parse.cc

@@ -508,6 +508,7 @@ void init_update_queries(void)
   sql_command_flags[SQLCOM_INSERT_SELECT]|=   CF_PREOPEN_TMP_TABLES;
   sql_command_flags[SQLCOM_DELETE]|=          CF_PREOPEN_TMP_TABLES;
   sql_command_flags[SQLCOM_DELETE_MULTI]|=    CF_PREOPEN_TMP_TABLES;
+  sql_command_flags[SQLCOM_RENAME_TABLE]|=    CF_PREOPEN_TMP_TABLES;
   sql_command_flags[SQLCOM_REPLACE_SELECT]|=  CF_PREOPEN_TMP_TABLES;
   sql_command_flags[SQLCOM_SELECT]|=          CF_PREOPEN_TMP_TABLES;
   sql_command_flags[SQLCOM_SET_OPTION]|=      CF_PREOPEN_TMP_TABLES;

sql/sql_rename.cc

@@ -212,6 +212,28 @@ static TABLE_LIST *reverse_table_list(TABLE_LIST *table_list)
 }
 
 
+static bool
+do_rename_temporary(THD *thd, TABLE_LIST *ren_table, TABLE_LIST *new_table,
+                    bool skip_error)
+{
+  const char *new_alias;
+  DBUG_ENTER("do_rename_temporary");
+
+  new_alias= (lower_case_table_names == 2) ? new_table->alias :
+                                             new_table->table_name;
+
+  if (is_temporary_table(new_table))
+  {
+    my_error(ER_TABLE_EXISTS_ERROR, MYF(0), new_alias);
+    DBUG_RETURN(1);                     // This can't be skipped
+  }
+
+
+  DBUG_RETURN(rename_temporary_table(thd, ren_table->table,
+              new_table->db, new_alias));
+}
+
+
 /*
   Rename a single table or a view
 
@@ -317,6 +339,8 @@ do_rename(THD *thd, TABLE_LIST *ren_table, char *new_db, char *new_table_name,
 
   DBUG_RETURN(0);
 }
+
+
 /*
   Rename all tables in list; Return pointer to wrong entry if something goes
   wrong.  Note that the table_list may be empty!
@@ -351,8 +375,11 @@ rename_tables(THD *thd, TABLE_LIST *table_list, bool skip_error)
   for (ren_table= table_list; ren_table; ren_table= new_table->next_local)
   {
     new_table= ren_table->next_local;
-    if (do_rename(thd, ren_table, new_table->db, new_table->table_name,
-                  new_table->alias, skip_error))
+
+    if (is_temporary_table(ren_table) ?
+          do_rename_temporary(thd, ren_table, new_table, skip_error) :
+          do_rename(thd, ren_table, new_table->db, new_table->table_name,
+                    new_table->alias, skip_error))
       DBUG_RETURN(ren_table);
   }
   DBUG_RETURN(0);

sql/sql_table.cc

@@ -2710,14 +2710,15 @@ bool log_drop_table(THD *thd, const char *db_name, size_t db_name_length,
 */
 
 bool quick_rm_table(THD *thd, handlerton *base, const char *db,
-                    const char *table_name, uint flags)
+                    const char *table_name, uint flags, const char *table_path)
 {
   char path[FN_REFLEN + 1];
   bool error= 0;
   DBUG_ENTER("quick_rm_table");
 
-  uint path_length= build_table_filename(path, sizeof(path) - 1,
-                                         db, table_name, reg_ext, flags);
+  uint path_length= table_path ?
+    (strxnmov(path, sizeof(path) - 1, table_path, reg_ext, NullS) - path) :
+    build_table_filename(path, sizeof(path)-1, db, table_name, reg_ext, flags);
   if (mysql_file_delete(key_file_frm, path, MYF(0)))
     error= 1; /* purecov: inspected */
   path[path_length - reg_ext_length]= '\0'; // Remove reg_ext
@@ -9220,7 +9221,8 @@ bool mysql_alter_table(THD *thd,char *new_db, char *new_name,
   else
     (void) quick_rm_table(thd, new_db_type,
                           alter_ctx.new_db, alter_ctx.tmp_name,
-                          (FN_IS_TMP | (no_ha_table ? NO_HA_TABLE : 0)));
+                          (FN_IS_TMP | (no_ha_table ? NO_HA_TABLE : 0)),
+                          alter_ctx.get_tmp_path());
 
   /*
     No default value was provided for a DATE/DATETIME field, the

sql/sql_table.h

@@ -247,7 +247,8 @@ bool log_drop_table(THD *thd, const char *db_name, size_t db_name_length,
                     const char *table_name, size_t table_name_length,
                     bool temporary_table);
 bool quick_rm_table(THD *thd, handlerton *base, const char *db,
-                    const char *table_name, uint flags);
+                    const char *table_name, uint flags,
+                    const char *table_path=0);
 void close_cached_table(THD *thd, TABLE *table);
 void sp_prepare_create_field(THD *thd, Create_field *sql_field);
 int prepare_create_field(Create_field *sql_field,