MDEV-35258 Mariabackup does not work with MyISAM tables with vector keys

recognize *#i#* files in mariadb-backup

Author: vuvova

extra/mariabackup/backup_copy.cc

@@ -895,6 +895,8 @@ void parse_db_table_from_file_path(
 		*ptr = '\0';
 	if ((ptr = strstr(tablename, "#P#")))
 		*ptr = '\0';
+	if ((ptr = strstr(tablename, "#i#")))
+		*ptr = '\0';
 }
 
 bool is_system_table(const char *dbname, const char *tablename)

mysql-test/suite/mariabackup/vector.result

@@ -49,3 +49,30 @@ id
 5
 4
 drop table t1;
+#
+# MDEV-35258 Mariabackup does not work with MyISAM tables with vector keys
+#
+create table t1 (a int, v vector(1) not null, vector(v)) engine=MyISAM;
+insert into t1 values (1,0x31313131),(2,0x32323232);
+drop table t1;
+db.opt
+t1#i#00.MYD
+t1#i#00.MYI
+t1.MYD
+t1.MYI
+t1.frm
+# shutdown server
+# remove datadir
+# xtrabackup move back
+# restart
+show create table t1;
+Table	Create Table
+t1	CREATE TABLE `t1` (
+  `a` int(11) DEFAULT NULL,
+  `v` vector(1) NOT NULL,
+  VECTOR KEY `v` (`v`)
+) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
+select * from t1 order by vec_distance_euclidean(v, 0x30303030) limit 1;
+a	v
+1	1111
+drop table t1;

mysql-test/suite/mariabackup/vector.test

@@ -28,3 +28,23 @@ select id, Vec_ToText(v) from t1;
 select id from t1 order by vec_distance_euclidean(v, Vec_FromText('[1,0,0,0,0]')) limit 3;
 drop table t1;
 rmdir $targetdir;
+
+--echo #
+--echo # MDEV-35258 Mariabackup does not work with MyISAM tables with vector keys
+--echo #
+
+create table t1 (a int, v vector(1) not null, vector(v)) engine=MyISAM;
+insert into t1 values (1,0x31313131),(2,0x32323232);
+--disable_result_log
+exec $XTRABACKUP --defaults-file=$MYSQLTEST_VARDIR/my.cnf --backup --target-dir=$targetdir;
+exec $XTRABACKUP --prepare --target-dir=$targetdir;
+--enable_result_log
+
+drop table t1;
+--list_files $targetdir/test
+--source include/restart_and_restore.inc
+
+show create table t1;
+select * from t1 order by vec_distance_euclidean(v, 0x30303030) limit 1;
+drop table t1;
+rmdir $targetdir;