MDEV-21851: Error in BINLOG_BASE64_EVENT i s always error-logged as if it is done by Slave

The prefix of error log message out of a failed BINLOG applying
is corrected to be the sql command name.

mysql-test/suite/binlog/include/binlog.test

@@ -391,7 +391,7 @@ SHOW SESSION VARIABLES LIKE "unique_checks";
 --echo # INSERT INTO t1 VALUES(2)
 --echo # foreign_key_checks=1 and unique_checks=1
 --echo # It should not change current session's variables, even error happens
-call mtr.add_suppression("Slave SQL.*Could not execute Write_rows_v1 event on table test.t1; Duplicate entry .2. for key .PRIMARY., Error_code: 1062");
+call mtr.add_suppression("BINLOG_BASE64_EVENT.*Could not execute Write_rows_v1 event on table test.t1; Duplicate entry .2. for key .PRIMARY., Error_code: 1062");
 --error 1062
 BINLOG '
 dfLtTBMBAAAAKQAAAKsBAAAAABcAAAAAAAEABHRlc3QAAnQxAAEDAAE=

mysql-test/suite/binlog/r/binlog_base64_flag.result

+call mtr.add_suppression("BINLOG_BASE64_EVENT: According to the master's version");
+call mtr.add_suppression("BINLOG_BASE64_EVENT: Column 1 of table 'test.char128_utf8' cannot be converted");
 DROP TABLE IF EXISTS t1;
 ==== Test BUG#32407 ====
 select * from t1;

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

@@ -1054,7 +1054,7 @@ unique_checks	OFF
 # INSERT INTO t1 VALUES(2)
 # foreign_key_checks=1 and unique_checks=1
 # It should not change current session's variables, even error happens
-call mtr.add_suppression("Slave SQL.*Could not execute Write_rows_v1 event on table test.t1; Duplicate entry .2. for key .PRIMARY., Error_code: 1062");
+call mtr.add_suppression("BINLOG_BASE64_EVENT.*Could not execute Write_rows_v1 event on table test.t1; Duplicate entry .2. for key .PRIMARY., Error_code: 1062");
 BINLOG '
 dfLtTBMBAAAAKQAAAKsBAAAAABcAAAAAAAEABHRlc3QAAnQxAAEDAAE=
 dfLtTBcBAAAAIgAAAM0BAAAAABcAAAAAAAEAAf/+AgAAAA==

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

@@ -650,7 +650,7 @@ unique_checks	OFF
 # INSERT INTO t1 VALUES(2)
 # foreign_key_checks=1 and unique_checks=1
 # It should not change current session's variables, even error happens
-call mtr.add_suppression("Slave SQL.*Could not execute Write_rows_v1 event on table test.t1; Duplicate entry .2. for key .PRIMARY., Error_code: 1062");
+call mtr.add_suppression("BINLOG_BASE64_EVENT.*Could not execute Write_rows_v1 event on table test.t1; Duplicate entry .2. for key .PRIMARY., Error_code: 1062");
 BINLOG '
 dfLtTBMBAAAAKQAAAKsBAAAAABcAAAAAAAEABHRlc3QAAnQxAAEDAAE=
 dfLtTBcBAAAAIgAAAM0BAAAAABcAAAAAAAEAAf/+AgAAAA==

mysql-test/suite/binlog/t/binlog_base64_flag.test

@@ -9,10 +9,12 @@
 # BINLOG statement does not work in embedded mode.
 source include/not_embedded.inc;
 
+call mtr.add_suppression("BINLOG_BASE64_EVENT: According to the master's version");
+call mtr.add_suppression("BINLOG_BASE64_EVENT: Column 1 of table 'test.char128_utf8' cannot be converted");
+
 disable_warnings;
 DROP TABLE IF EXISTS t1;
 enable_warnings;
-
 # Test to show BUG#32407.  This reads a binlog created with the
 # mysql-5.1-telco-6.1 tree, specifically at the tag
 # mysql-5.1.15-ndb-6.1.23, and applies it to the database.  The test

sql/rpl_reporting.cc

@@ -19,6 +19,7 @@
 #include "rpl_reporting.h"
 #include "log.h" // sql_print_error, sql_print_warning,
                  // sql_print_information
+#include "sql_class.h"
 
 Slave_reporting_capability::Slave_reporting_capability(char const *thread_name)
   : m_thread_name(thread_name)
@@ -70,7 +71,8 @@ Slave_reporting_capability::report(loglevel level, int err_code,
   va_end(args);
 
   /* If the msg string ends with '.', do not add a ',' it would be ugly */
-  report_function("Slave %s: %s%s %s%sInternal MariaDB error code: %d",
+  report_function("%s %s: %s%s %s%sInternal MariaDB error code: %d",
+                  (current_thd && current_thd->rgi_fake) ? "" : "Slave",
                   m_thread_name, pbuff,
                   (pbuff[0] && *(strend(pbuff)-1) == '.') ? "" : ",",
                   (extra_info ? extra_info : ""), (extra_info ? ", " : ""),

sql/rpl_rli.cc

@@ -46,8 +46,8 @@ gtid_waiting rpl_global_gtid_waiting;
 
 const char *const Relay_log_info::state_delaying_string = "Waiting until MASTER_DELAY seconds after master executed event";
 
-Relay_log_info::Relay_log_info(bool is_slave_recovery)
-  :Slave_reporting_capability("SQL"),
+Relay_log_info::Relay_log_info(bool is_slave_recovery, const char* thread_name)
+  :Slave_reporting_capability(thread_name),
    replicate_same_server_id(::replicate_same_server_id),
    info_fd(-1), cur_log_fd(-1), relay_log(&sync_relaylog_period),
    sync_counter(0), is_relay_log_recovery(is_slave_recovery),

sql/rpl_rli.h

@@ -387,7 +387,7 @@ class Relay_log_info : public Slave_reporting_capability
   */
   slave_connection_state restart_gtid_pos;
 
-  Relay_log_info(bool is_slave_recovery);
+  Relay_log_info(bool is_slave_recovery, const char* thread_name= "SQL");
   ~Relay_log_info();
 
   /*

sql/sql_binlog.cc

@@ -211,7 +211,7 @@ void mysql_client_binlog_statement(THD* thd)
   size_t coded_len= 0, decoded_len= 0;
 
   rli= thd->rli_fake;
-  if (!rli && (rli= thd->rli_fake= new Relay_log_info(FALSE)))
+  if (!rli && (rli= thd->rli_fake= new Relay_log_info(FALSE, "BINLOG_BASE64_EVENT")))
     rli->sql_driver_thd= thd;
   if (!(rgi= thd->rgi_fake))
     rgi= thd->rgi_fake= new rpl_group_info(rli);