Bug #34283 mysqlbinlog leaves tmpfile after termination if binlog contains load data infile

With statement- or mixed-mode logging, "LOAD DATA INFILE" queries
are written to the binlog using special types of log events.
When mysqlbinlog reads such events, it re-creates the file in a
temporary directory with a generated filename and outputs a
"LOAD DATA INFILE" query where the filename is replaced by the
generated file. The temporary file is not deleted by mysqlbinlog
after termination.

To fix the problem, in mixed mode we go to row-based. In SBR, we
document it to remind user the tmpfile is left in a temporary
directory.


mysql-test/suite/binlog/r/binlog_mixed_load_data.result:
  Test result for BUG#34283.
mysql-test/suite/binlog/t/binlog_mixed_load_data.test:
  Added the test file to verify that 'load data infile...' statement
  will go to row-based in mixed mode.
sql/sql_load.cc:
  Added code to go to row-based in mixed mode for
  'load data infile ...' statement

mysql-test/suite/binlog/r/binlog_mixed_load_data.result

+RESET MASTER;
+CREATE TABLE t1 (word CHAR(20) NOT NULL) ENGINE=MYISAM;
+LOAD DATA INFILE '../../std_data/words.dat' INTO TABLE t1;
+show binlog events from <binlog_start>;
+Log_name	Pos	Event_type	Server_id	End_log_pos	Info
+master-bin.000001	#	Query	#	#	BEGIN
+master-bin.000001	#	Table_map	#	#	table_id: # (test.t1)
+master-bin.000001	#	Write_rows	#	#	table_id: # flags: STMT_END_F
+master-bin.000001	#	Query	#	#	COMMIT
+DROP TABLE t1;

mysql-test/suite/binlog/t/binlog_mixed_load_data.test

+#
+# Bug #34283  mysqlbinlog leaves tmpfile after termination
+# if binlog contains load data infile, so in mixed mode we
+# go to row-based for avoiding the problem.
+#
+
+--source include/have_binlog_format_mixed.inc
+--source include/have_log_bin.inc
+
+RESET MASTER;
+CREATE TABLE t1 (word CHAR(20) NOT NULL) ENGINE=MYISAM;
+let $binlog_start= query_get_value(SHOW MASTER STATUS, Position, 1);
+LOAD DATA INFILE '../../std_data/words.dat' INTO TABLE t1;
+--source include/show_binlog_events.inc
+DROP TABLE t1;

sql/sql_load.cc

@@ -141,6 +141,14 @@ int mysql_load(THD *thd,sql_exchange *ex,TABLE_LIST *table_list,
   bool transactional_table;
   DBUG_ENTER("mysql_load");
 
+  /*
+    Bug #34283
+    mysqlbinlog leaves tmpfile after termination if binlog contains
+    load data infile, so in mixed mode we go to row-based for
+    avoiding the problem.
+  */
+  thd->set_current_stmt_binlog_row_based_if_mixed();
+
 #ifdef EMBEDDED_LIBRARY
   read_file_from_client  = 0; //server is always in the same process 
 #endif