Only apply wsrep_trx_fragment_size to InnoDB tables

MDEV-22617 Galera node crashes when trying to log to slow_log table in
streaming replication mode

Other things:
- Changed name of wsrep_after_row(two arguments) to
  wsrep_after_row_internal(one argument) to not depended on the
  function signature with unused arguments.
Reviewed-by: Jan Lindström <jan.lindstrom@mariadb.com>
	     Added test case

mysql-test/suite/galera_sr/r/galera_sr_slow.result

+connection node_2;
+connection node_1;
+connection node_1;
+SET GLOBAL wsrep_trx_fragment_unit='bytes';
+SET GLOBAL wsrep_trx_fragment_size=10240000;
+SET GLOBAL slow_query_log=ON;
+SET GLOBAL log_output='TABLE';
+SELECT SLEEP(10);
+SLEEP(10)
+0
+SET GLOBAL wsrep_trx_fragment_unit=DEFAULT;
+SET GLOBAL wsrep_trx_fragment_size=DEFAULT;
+SET GLOBAL log_output=DEFAULT;

mysql-test/suite/galera_sr/t/galera_sr_slow.test

+--source include/galera_cluster.inc
+
+--connection node_1
+SET GLOBAL wsrep_trx_fragment_unit='bytes';
+SET GLOBAL wsrep_trx_fragment_size=10240000;
+SET GLOBAL slow_query_log=ON;
+SET GLOBAL log_output='TABLE';
+SELECT SLEEP(10);
+SET GLOBAL wsrep_trx_fragment_unit=DEFAULT;
+SET GLOBAL wsrep_trx_fragment_size=DEFAULT;
+SET GLOBAL log_output=DEFAULT;

sql/handler.cc

@@ -6579,7 +6579,7 @@ static int wsrep_after_row(THD *thd)
     my_message(ER_ERROR_DURING_COMMIT, "wsrep_max_ws_rows exceeded", MYF(0));
     DBUG_RETURN(ER_ERROR_DURING_COMMIT);
   }
-  else if (wsrep_after_row(thd, false))
+  else if (wsrep_after_row_internal(thd))
   {
     DBUG_RETURN(ER_LOCK_DEADLOCK);
   }
@@ -6778,7 +6778,8 @@ int handler::ha_write_row(const uchar *buf)
     error= binlog_log_row(table, 0, buf, log_func);
 #ifdef WITH_WSREP
     if (table_share->tmp_table == NO_TMP_TABLE &&
-        WSREP(ha_thd()) && (error= wsrep_after_row(ha_thd())))
+        WSREP(ha_thd()) && ht->flags & HTON_WSREP_REPLICATION &&
+        !error && (error= wsrep_after_row(ha_thd())))
     {
       DBUG_RETURN(error);
     }
@@ -6836,7 +6837,8 @@ int handler::ha_update_row(const uchar *old_data, const uchar *new_data)
       }
     }
     if (table_share->tmp_table == NO_TMP_TABLE &&
-        is_wsrep && (error= wsrep_after_row(thd)))
+        is_wsrep && ht->flags & HTON_WSREP_REPLICATION &&
+        !error && (error= wsrep_after_row(thd)))
     {
       return error;
     }
@@ -6911,7 +6913,8 @@ int handler::ha_delete_row(const uchar *buf)
       }
     }
     if (table_share->tmp_table == NO_TMP_TABLE &&
-        is_wsrep && (error= wsrep_after_row(thd)))
+        is_wsrep && ht->flags & HTON_WSREP_REPLICATION &&
+        !error && (error= wsrep_after_row(thd)))
     {
       return error;
     }

sql/wsrep_trans_observer.h

@@ -158,7 +158,7 @@ static inline int wsrep_start_trx_if_not_started(THD* thd)
 
   Return zero on succes, non-zero on failure.
  */
-static inline int wsrep_after_row(THD* thd, bool)
+static inline int wsrep_after_row_internal(THD* thd)
 {
   if (thd->wsrep_cs().state() != wsrep::client_state::s_none  &&
       wsrep_thd_is_local(thd))