MDEV-14871 Server crashes in fill_record /...

MDEV-14871 Server crashes in fill_record / fill_record_n_invoke_before_triggers upon inserting into versioned table with trigger

mysql-test/suite/versioning/r/insert.result

@@ -358,4 +358,10 @@ a
 select * from t1 for system_time as of sysdate(6);
 a
 1
+#
+# MDEV-14871 Server crashes in fill_record / fill_record_n_invoke_before_triggers upon inserting into versioned table with trigger
+#
+create or replace table t1 (pk int primary key) with system versioning;
+create trigger tr before insert on t1 for each row select 1 into @a;
+insert into t1 values (1),(2);
 drop table t1;

mysql-test/suite/versioning/t/insert.test

@@ -251,4 +251,12 @@ create table t1 (a int) with system versioning;
 insert t1 values (1);
 select * from t1 for system_time as of now(6);
 select * from t1 for system_time as of sysdate(6);
+
+--echo #
+--echo # MDEV-14871 Server crashes in fill_record / fill_record_n_invoke_before_triggers upon inserting into versioned table with trigger
+--echo #
+create or replace table t1 (pk int primary key) with system versioning;
+create trigger tr before insert on t1 for each row select 1 into @a;
+insert into t1 values (1),(2);
+
 drop table t1;

sql/sql_trigger.cc

@@ -1228,7 +1228,7 @@ bool Table_triggers_list::prepare_record_accessors(TABLE *table)
     uchar null_bit= 1;
     for (fld= table->field, trg_fld= record0_field; *fld; fld++, trg_fld++)
     {
-      if (!(*fld)->null_ptr && !(*fld)->vcol_info)
+      if (!(*fld)->null_ptr && !(*fld)->vcol_info && !(*fld)->vers_sys_field())
       {
         Field *f;
         if (!(f= *trg_fld= (*fld)->make_new_field(&table->mem_root, table,