Merge branch '11.8' into 12.0

main/statistics_json.result is updated for f8ba5ced55 (MDEV-36099)

The test uses 'delete from t1' in many places and then populates
the table again. The natural order of rows in a MyISAM table is well
defined and the test was implicitly relying on that.

before f8ba5ced55 delete was deleting rows one by one, using
ha_myisam::delete_row() because the connection was stuck in rbr mode.
This caused rows to be shown in the reverse insertion order (because of
the delete link list).

MDEV-36099 fixes this bug and the server now correctly uses
ha_myisam::delete_all_rows(). This makes rows to be shown in the
insertion order as expected.

plugin/disks/information_schema_disks.cc

@@ -32,6 +32,9 @@
 #include <sys/mntent.h>
 #endif
 #endif
+#ifndef PATH_MAX
+#define PATH_MAX 4096
+#endif
 #include <sql_class.h>
 #include <sql_i_s.h>
 #include <sql_acl.h>                            /* check_global_access() */