MDEV-29298 INSERT ... SELECT Does not produce an optimizer trace

Add INSERT ... SELECT to the list of commands that can be traced

Approved by Sergei Petrunia (sergey@mariadb.com)

mysql-test/main/opt_trace.result

@@ -9231,5 +9231,17 @@ json_detailed(json_extract(trace, '$**.in_to_subquery_conversion'))
 ]
 set in_predicate_conversion_threshold=@tmp;
 drop table t0;
+#
+# MDEV-29298: INSERT ... SELECT Does not produce an optimizer trace
+#
+create table t1 (a int, b int);
+create table t2 (a int, b int);
+insert into t1 values (1,1), (2,2), (3,3), (4,4), (5,5);
+set optimizer_trace=1;
+insert into t2 select * from t1 where a<= b and a>4;
+select QUERY, LENGTH(trace)>1 from information_schema.optimizer_trace;
+QUERY	LENGTH(trace)>1
+insert into t2 select * from t1 where a<= b and a>4	1
+drop table t1, t2;
 # End of 10.5 tests
 set optimizer_trace='enabled=off';

mysql-test/main/opt_trace.test

@@ -861,5 +861,19 @@ set in_predicate_conversion_threshold=@tmp;
 drop table t0;
 --enable_view_protocol
 
+--echo #
+--echo # MDEV-29298: INSERT ... SELECT Does not produce an optimizer trace
+--echo #
+create table t1 (a int, b int);
+create table t2 (a int, b int);
+insert into t1 values (1,1), (2,2), (3,3), (4,4), (5,5);
+set optimizer_trace=1;
+
+insert into t2 select * from t1 where a<= b and a>4;
+
+select QUERY, LENGTH(trace)>1 from information_schema.optimizer_trace;
+
+drop table t1, t2;
+
 --echo # End of 10.5 tests
 set optimizer_trace='enabled=off';

sql/opt_trace.cc

@@ -103,7 +103,8 @@ inline bool sql_command_can_be_traced(enum enum_sql_command sql_command)
          sql_command == SQLCOM_UPDATE ||
          sql_command == SQLCOM_DELETE ||
          sql_command == SQLCOM_DELETE_MULTI ||
-         sql_command == SQLCOM_UPDATE_MULTI;
+         sql_command == SQLCOM_UPDATE_MULTI ||
+         sql_command == SQLCOM_INSERT_SELECT;
 }
 
 void opt_trace_print_expanded_query(THD *thd, SELECT_LEX *select_lex,