Bug#37377888: rpl_relay_log_space_limit_half_logged_transaction.test fails with STA and compression

The test rpl_relay_log_space_limit_half_logged_transaction was not
prepared to run with single thread replication and compression.

We disable the test for single thread replication.
We fix the test so it runs with compression.

Change-Id: Ib7044840a0b62e884938b8904a0be5a75be59b8c

Author: pedrolgomes

mysql-test/suite/rpl_gtid/r/rpl_relay_log_space_limit_half_logged_transaction.result

@@ -20,7 +20,7 @@ INSERT INTO test.t1 (c2) VALUES (REPEAT('a', 1000000));
 INSERT INTO test.t1 (c2) VALUES (REPEAT('b', 1000000));
 COMMIT;
 [connection slave]
-include/rpl_receive_event_count.inc [stop after 4 non-header events]
+include/rpl_receive_event_count.inc
 
 ##############################################################
 # 3. Restart the replica with a limit to the relay log size

mysql-test/suite/rpl_gtid/t/rpl_relay_log_space_limit_half_logged_transaction.test

@@ -27,6 +27,7 @@
 --source include/have_debug.inc
 --source include/have_debug_sync.inc
 --source include/have_binlog_format_row.inc
+--source include/only_mts_replica_parallel_workers.inc
 --source include/master-slave.inc
 
 --echo
@@ -57,6 +58,11 @@ COMMIT;
 
 --let $rpl_after_received_events_action= stop
 --let $rpl_event_count= 4
+--let $rpl_skip_event_count_print_in_result_log= 1
+if (`SELECT @@session.binlog_transaction_compression = TRUE`)
+{
+   --let $rpl_event_count= 3
+}
 --source include/rpl_receive_event_count.inc
 
 --echo