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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_partition_admin.cc
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@ -630,7 +630,7 @@ bool Sql_cmd_alter_table_exchange_partition::
better to keep master/slave in consistent state. Alternative would be to
try to revert the exchange operation and issue error.
*/
(void) thd->locked_tables_list.reopen_tables(thd);
(void) thd->locked_tables_list.reopen_tables(thd, false);
if ((error= write_bin_log(thd, TRUE, thd->query(), thd->query_length())))
{