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MDEV-28599 EXCHANGE PARTITION on view causes ER_CHECK_NO_SUCH_TABLE instead of ER_WRONG_OBJECT

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ER_CHECK_NO_SUCH_TABLE was raised because a view does not have
the corresponding TABLE instance connected to TABLE_LIST and the
server interprets the absence as the absence of the table itself.

To fix the problem, we add a check to ensure that the target table
to be swapped with a partition is not a view.

Reviewed by: Nayuta Yanagisawa
This commit is contained in:
Masashi Tomooka 2022-05-30 19:28:44 +09:00 committed by GitHub
parent c4e87cb22c
commit f7137a619f
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3 changed files with 33 additions and 2 deletions
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13
mysql-test/main/partition_error.result
View File

@ -6,7 +6,18 @@ drop table if exists t1, t2;
CREATE TABLE t1 (a int);
CREATE OR REPLACE VIEW v1 AS SELECT * FROM t1;
ALTER TABLE t1 EXCHANGE PARTITION p0 WITH TABLE v1;
ERROR 42000: Can't open table
ERROR HY000: 'test.v1' is not of type 'BASE TABLE'
DROP VIEW v1;
DROP TABLE t1;
#
# MDEV-28599 EXCHANGE PARTITION on view causes ER_CHECK_NO_SUCH_TABLE instead of ER_WRONG_OBJECT
#
CREATE TABLE t1 (a int)
PARTITION BY HASH (a)
PARTITIONS 2;
CREATE OR REPLACE VIEW v1 AS SELECT * FROM t1;
ALTER TABLE t1 EXCHANGE PARTITION p0 WITH TABLE v1;
ERROR HY000: 'test.v1' is not of type 'BASE TABLE'
DROP VIEW v1;
DROP TABLE t1;
#

14
mysql-test/main/partition_error.test
View File

@ -16,7 +16,19 @@ let $MYSQLD_DATADIR= `SELECT @@datadir`;
--echo #
CREATE TABLE t1 (a int);
CREATE OR REPLACE VIEW v1 AS SELECT * FROM t1;
--error ER_CHECK_NO_SUCH_TABLE
--error ER_WRONG_OBJECT
ALTER TABLE t1 EXCHANGE PARTITION p0 WITH TABLE v1;
DROP VIEW v1;
DROP TABLE t1;
--echo #
--echo # MDEV-28599 EXCHANGE PARTITION on view causes ER_CHECK_NO_SUCH_TABLE instead of ER_WRONG_OBJECT
--echo #
CREATE TABLE t1 (a int)
PARTITION BY HASH (a)
PARTITIONS 2;
CREATE OR REPLACE VIEW v1 AS SELECT * FROM t1;
--error ER_WRONG_OBJECT
ALTER TABLE t1 EXCHANGE PARTITION p0 WITH TABLE v1;
DROP VIEW v1;
DROP TABLE t1;

8
sql/sql_partition_admin.cc
View File

@ -539,6 +539,14 @@ bool Sql_cmd_alter_table_exchange_partition::
part_table= table_list->table;
swap_table= swap_table_list->table;
/* Don't allow to exchange with a VIEW */
if (unlikely(swap_table_list->view))
{
my_error(ER_WRONG_OBJECT, MYF(0), table_list->db.str,
swap_table_list->table_name.str, "BASE TABLE");
DBUG_RETURN(TRUE);
}
if (unlikely(check_exchange_partition(swap_table, part_table)))
DBUG_RETURN(TRUE);