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MDEV-15456 Server crashes upon adding or dropping a partition in ALTER under LOCK TABLE after ER_SAME_NAME_PARTITION

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ALTER TABLE ... ADD PARTITION modifies the open TABLE structure,
and sets table->need_reopen=1 to reset these modifications
in case of an error.

But under LOCK TABLES the table isn't get reopened, despite need_reopen.

Fixed by reopening need_reopen tables under LOCK TABLE.
This commit is contained in:
Sergei Golubchik
2018-04-20 10:10:33 +02:00
parent 86718fda4e
commit bcb36ee21e
12 changed files with 58 additions and 15 deletions
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2
sql/sql_truncate.cc
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@ -494,7 +494,7 @@ bool Sql_cmd_truncate_table::truncate_table(THD *thd, TABLE_LIST *table_ref)
*/
error= dd_recreate_table(thd, table_ref->db, table_ref->table_name);
if (thd->locked_tables_mode && thd->locked_tables_list.reopen_tables(thd))
if (thd->locked_tables_mode && thd->locked_tables_list.reopen_tables(thd, false))
thd->locked_tables_list.unlink_all_closed_tables(thd, NULL, 0);
/* No need to binlog a failed truncate-by-recreate. */