Unsuccessful VECTOR index creation leaves a temporary file behind

--source include/have_innodb.inc

CREATE TABLE t (f VARBINARY(512) PRIMARY KEY, v VECTOR(1) NOT NULL) ENGINE=InnoDB;

--error ER_TOO_LONG_KEY

ALTER TABLE t ADD VECTOR(v);

--list_files $MARIADB_DATADIR/test/ *sql-alter*

DROP TABLE t;

ALTER TABLE t ADD VECTOR(v);

ERROR 42000: Primary key was too long for vector indexes, max length is 256 bytes

#sql-alter-3d7d46-4.ibd

DROP TABLE t;

...

--- /11.8/mysql-test/var/tmp/check-mysqld_1.result      2026-03-27 16:25:18.904132673 +0200

+++ /11.8/mysql-test/var/tmp/check-mysqld_1.reject      2026-03-27 16:25:18.992136513 +0200

@@ -1139,3 +1139,4 @@

 THREAD_POOL_WAITS      1.0     DISABLED        INFORMATION SCHEMA      110807.0        NULL    NULL    Vladislav Vaintroub     Provides wait counters for threadpool.   GPL     OFF     Stable  1.0

 partition      1.0     DISABLED        STORAGE ENGINE  110807.0        NULL    NULL    Mikael Ronstrom, MySQL AB       Partition Storage Engine Helper  GPL     OFF     Stable  1.0

 VARIABLE_NAME  VARIABLE_VALUE

+#sql-alter-3d7d46-4.ibd