Cassandra has long been non-functional, doesn't compile, etc.,
and development on it has halted. Since MariaDB Server 10.5,
the build is disabled by default.
It makes sense to remove it as it's just taking up space.
* in --parallel mode don't copy/symlinks plugins individually
in each forked child's vardir, use the common parent vardir with
all plugins
* move pam plugin specific code from mysql-test-run.pl to
suite/plugins/suite.pm
New version of PAM plugin (v2.0) added along with the old v1.0.
There the pam module is isolated in the auth_pam_tool application so
cannot crash the server.
mysql-test-run auto-disables all optional plugins.
mysql-test/include/default_client.cnf:
no @OPT.plugindir anymore
mysql-test/include/default_mysqld.cnf:
don't disable plugins manually - mtr can do it better
mysql-test/suite/innodb/t/innodb_bug47167.test:
mtr now uses suite-dir as an include path
mysql-test/suite/innodb/t/innodb_file_format.test:
mtr now uses suite-dir as an include path
mysql-test/t/partition_binlog.test:
this test uses partitions
storage/example/mysql-test/mtr/t/source.result:
update results. as mysqltest includes the correct overlayed include
storage/innobase/handler/ha_innodb.cc:
the assert is wrong
