MDEV-20074: Lost connection on update trigger

Instead of checking lex->sql_command which does not corect in case of triggers
mark tables for insert.

mysql-test/suite/sql_sequence/other.result

@@ -209,4 +209,95 @@ delete s,t1 from t1,s;
 ERROR HY000: Storage engine SEQUENCE of the table `test`.`s` doesn't have this option
 DROP SEQUENCE s;
 DROP TABLE t1;
+#
+# MDEV-20074: Lost connection on update trigger
+#
+# INSERT & table
+create sequence s1 increment by 1 start with 1;
+create table t1 (p_id integer, p_name varchar(128), p_first_name varchar(128));
+create table t2 (a_id integer default nextval(s1), a_p_name varchar(128), a_p_first_name varchar(128), t timestamp default current_timestamp);
+insert into t1 values
+(1, 'Luo','Frank'),(2, 'Xe','Emma'),(3, 'Li','Anna'),(4, 'Lun','Serg'),(5, 'Xu','Nils'),(6, 'Ja','Ute'),(7, 'Jin','Mike'),(8, 'Lio','Carl'),(9, 'Lang','Kevin'),(10, 'Ling','Lisa'),(11, 'Fang','Frank'),(12, 'Feng','Emma'),(13, 'Tuo','Anna'),(14, 'Tua','Serg'),(15, 'Moa','Nils'),(16, 'Hua','Ute'),(17, 'Xufa','Mike'),(18, 'Lulu','Carl'),(19, 'Hoho','Kevin'),(20, 'Tata','Lisa');
+CREATE TRIGGER tr_upd
+BEFORE UPDATE on t1
+FOR EACH ROW
+BEGIN
+INSERT INTO t2(a_p_name, a_p_first_name) VALUES(old.p_name, old.p_first_name);
+END;
+$$
+update t1 set p_first_name='Yunxi' where p_id=1;
+drop sequence s1;
+drop table t1,t2;
+# INSERT & view
+create sequence s1 increment by 1 start with 1;
+create table t1 (p_id integer, p_name varchar(128), p_first_name varchar(128));
+create table t2 (a_id integer default nextval(s1), a_p_name varchar(128), a_p_first_name varchar(128), t timestamp default current_timestamp);
+create view v2 as select * from t2;
+insert into t1 values
+(1, 'Luo','Frank'),(2, 'Xe','Emma'),(3, 'Li','Anna'),(4, 'Lun','Serg'),(5, 'Xu','Nils'),(6, 'Ja','Ute'),(7, 'Jin','Mike'),(8, 'Lio','Carl'),(9, 'Lang','Kevin'),(10, 'Ling','Lisa'),(11, 'Fang','Frank'),(12, 'Feng','Emma'),(13, 'Tuo','Anna'),(14, 'Tua','Serg'),(15, 'Moa','Nils'),(16, 'Hua','Ute'),(17, 'Xufa','Mike'),(18, 'Lulu','Carl'),(19, 'Hoho','Kevin'),(20, 'Tata','Lisa');
+CREATE TRIGGER tr_upd
+BEFORE UPDATE on t1
+FOR EACH ROW
+BEGIN
+INSERT INTO v2(a_p_name, a_p_first_name) VALUES(old.p_name, old.p_first_name);
+END;
+$$
+update t1 set p_first_name='Yunxi' where p_id=1;
+drop view v2;
+drop table t1,t2;
+drop sequence s1;
+# INSERT SELECT & view
+create sequence s1 increment by 1 start with 1;
+create table t1 (p_id integer, p_name varchar(128), p_first_name varchar(128));
+create table t2 (a_id integer default nextval(s1), a_p_name varchar(128), a_p_first_name varchar(128), t timestamp default current_timestamp);
+create view v2 as select * from t2;
+insert into t1 values
+(1, 'Luo','Frank'),(2, 'Xe','Emma'),(3, 'Li','Anna'),(4, 'Lun','Serg'),(5, 'Xu','Nils'),(6, 'Ja','Ute'),(7, 'Jin','Mike'),(8, 'Lio','Carl'),(9, 'Lang','Kevin'),(10, 'Ling','Lisa'),(11, 'Fang','Frank'),(12, 'Feng','Emma'),(13, 'Tuo','Anna'),(14, 'Tua','Serg'),(15, 'Moa','Nils'),(16, 'Hua','Ute'),(17, 'Xufa','Mike'),(18, 'Lulu','Carl'),(19, 'Hoho','Kevin'),(20, 'Tata','Lisa');
+CREATE TRIGGER tr_upd
+BEFORE UPDATE on t1
+FOR EACH ROW
+BEGIN
+INSERT INTO v2(a_p_name, a_p_first_name) SELECT old.p_name, old.p_first_name;
+END;
+$$
+update t1 set p_first_name='Yunxi' where p_id=1;
+drop view v2;
+drop table t1,t2;
+drop sequence s1;
+# REPLACE & view
+create sequence s1 increment by 1 start with 1;
+create table t1 (p_id integer, p_name varchar(128), p_first_name varchar(128));
+create table t2 (a_id integer default nextval(s1), a_p_name varchar(128), a_p_first_name varchar(128), t timestamp default current_timestamp);
+create view v2 as select * from t2;
+insert into t1 values
+(1, 'Luo','Frank'),(2, 'Xe','Emma'),(3, 'Li','Anna'),(4, 'Lun','Serg'),(5, 'Xu','Nils'),(6, 'Ja','Ute'),(7, 'Jin','Mike'),(8, 'Lio','Carl'),(9, 'Lang','Kevin'),(10, 'Ling','Lisa'),(11, 'Fang','Frank'),(12, 'Feng','Emma'),(13, 'Tuo','Anna'),(14, 'Tua','Serg'),(15, 'Moa','Nils'),(16, 'Hua','Ute'),(17, 'Xufa','Mike'),(18, 'Lulu','Carl'),(19, 'Hoho','Kevin'),(20, 'Tata','Lisa');
+CREATE TRIGGER tr_upd
+BEFORE UPDATE on t1
+FOR EACH ROW
+BEGIN
+REPLACE INTO v2(a_p_name, a_p_first_name) VALUES(old.p_name, old.p_first_name);
+END;
+$$
+update t1 set p_first_name='Yunxi' where p_id=1;
+drop view v2;
+drop table t1,t2;
+drop sequence s1;
+# REPLACE SELECT & view
+create sequence s1 increment by 1 start with 1;
+create table t1 (p_id integer, p_name varchar(128), p_first_name varchar(128));
+create table t2 (a_id integer default nextval(s1), a_p_name varchar(128), a_p_first_name varchar(128), t timestamp default current_timestamp);
+create view v2 as select * from t2;
+insert into t1 values
+(1, 'Luo','Frank'),(2, 'Xe','Emma'),(3, 'Li','Anna'),(4, 'Lun','Serg'),(5, 'Xu','Nils'),(6, 'Ja','Ute'),(7, 'Jin','Mike'),(8, 'Lio','Carl'),(9, 'Lang','Kevin'),(10, 'Ling','Lisa'),(11, 'Fang','Frank'),(12, 'Feng','Emma'),(13, 'Tuo','Anna'),(14, 'Tua','Serg'),(15, 'Moa','Nils'),(16, 'Hua','Ute'),(17, 'Xufa','Mike'),(18, 'Lulu','Carl'),(19, 'Hoho','Kevin'),(20, 'Tata','Lisa');
+CREATE TRIGGER tr_upd
+BEFORE UPDATE on t1
+FOR EACH ROW
+BEGIN
+REPLACE INTO v2(a_p_name, a_p_first_name) SELECT old.p_name, old.p_first_name;
+END;
+$$
+update t1 set p_first_name='Yunxi' where p_id=1;
+drop view v2;
+drop table t1,t2;
+drop sequence s1;
 # End of 10.3 tests

mysql-test/suite/sql_sequence/other.test

@@ -179,4 +179,140 @@ DROP SEQUENCE s;
 DROP TABLE t1;
 
 
+--echo #
+--echo # MDEV-20074: Lost connection on update trigger
+--echo #
+
+--echo # INSERT & table
+create sequence s1 increment by 1 start with 1;
+create table t1 (p_id integer, p_name varchar(128), p_first_name varchar(128));
+create table t2 (a_id integer default nextval(s1), a_p_name varchar(128), a_p_first_name varchar(128), t timestamp default current_timestamp);
+
+insert into t1 values
+(1, 'Luo','Frank'),(2, 'Xe','Emma'),(3, 'Li','Anna'),(4, 'Lun','Serg'),(5, 'Xu','Nils'),(6, 'Ja','Ute'),(7, 'Jin','Mike'),(8, 'Lio','Carl'),(9, 'Lang','Kevin'),(10, 'Ling','Lisa'),(11, 'Fang','Frank'),(12, 'Feng','Emma'),(13, 'Tuo','Anna'),(14, 'Tua','Serg'),(15, 'Moa','Nils'),(16, 'Hua','Ute'),(17, 'Xufa','Mike'),(18, 'Lulu','Carl'),(19, 'Hoho','Kevin'),(20, 'Tata','Lisa');
+
+DELIMITER $$;
+
+CREATE TRIGGER tr_upd
+BEFORE UPDATE on t1
+FOR EACH ROW
+BEGIN
+INSERT INTO t2(a_p_name, a_p_first_name) VALUES(old.p_name, old.p_first_name);
+END;
+$$
+DELIMITER ;$$
+
+update t1 set p_first_name='Yunxi' where p_id=1;
+
+drop sequence s1;
+drop table t1,t2;
+
+
+--echo # INSERT & view
+create sequence s1 increment by 1 start with 1;
+create table t1 (p_id integer, p_name varchar(128), p_first_name varchar(128));
+create table t2 (a_id integer default nextval(s1), a_p_name varchar(128), a_p_first_name varchar(128), t timestamp default current_timestamp);
+create view v2 as select * from t2;
+
+insert into t1 values
+(1, 'Luo','Frank'),(2, 'Xe','Emma'),(3, 'Li','Anna'),(4, 'Lun','Serg'),(5, 'Xu','Nils'),(6, 'Ja','Ute'),(7, 'Jin','Mike'),(8, 'Lio','Carl'),(9, 'Lang','Kevin'),(10, 'Ling','Lisa'),(11, 'Fang','Frank'),(12, 'Feng','Emma'),(13, 'Tuo','Anna'),(14, 'Tua','Serg'),(15, 'Moa','Nils'),(16, 'Hua','Ute'),(17, 'Xufa','Mike'),(18, 'Lulu','Carl'),(19, 'Hoho','Kevin'),(20, 'Tata','Lisa');
+
+DELIMITER $$;
+
+CREATE TRIGGER tr_upd
+BEFORE UPDATE on t1
+FOR EACH ROW
+BEGIN
+INSERT INTO v2(a_p_name, a_p_first_name) VALUES(old.p_name, old.p_first_name);
+END;
+$$
+DELIMITER ;$$
+
+update t1 set p_first_name='Yunxi' where p_id=1;
+
+drop view v2;
+drop table t1,t2;
+drop sequence s1;
+
+
+--echo # INSERT SELECT & view
+create sequence s1 increment by 1 start with 1;
+create table t1 (p_id integer, p_name varchar(128), p_first_name varchar(128));
+create table t2 (a_id integer default nextval(s1), a_p_name varchar(128), a_p_first_name varchar(128), t timestamp default current_timestamp);
+create view v2 as select * from t2;
+
+insert into t1 values
+(1, 'Luo','Frank'),(2, 'Xe','Emma'),(3, 'Li','Anna'),(4, 'Lun','Serg'),(5, 'Xu','Nils'),(6, 'Ja','Ute'),(7, 'Jin','Mike'),(8, 'Lio','Carl'),(9, 'Lang','Kevin'),(10, 'Ling','Lisa'),(11, 'Fang','Frank'),(12, 'Feng','Emma'),(13, 'Tuo','Anna'),(14, 'Tua','Serg'),(15, 'Moa','Nils'),(16, 'Hua','Ute'),(17, 'Xufa','Mike'),(18, 'Lulu','Carl'),(19, 'Hoho','Kevin'),(20, 'Tata','Lisa');
+
+DELIMITER $$;
+
+CREATE TRIGGER tr_upd
+BEFORE UPDATE on t1
+FOR EACH ROW
+BEGIN
+INSERT INTO v2(a_p_name, a_p_first_name) SELECT old.p_name, old.p_first_name;
+END;
+$$
+DELIMITER ;$$
+
+update t1 set p_first_name='Yunxi' where p_id=1;
+
+drop view v2;
+drop table t1,t2;
+drop sequence s1;
+
+
+--echo # REPLACE & view
+create sequence s1 increment by 1 start with 1;
+create table t1 (p_id integer, p_name varchar(128), p_first_name varchar(128));
+create table t2 (a_id integer default nextval(s1), a_p_name varchar(128), a_p_first_name varchar(128), t timestamp default current_timestamp);
+create view v2 as select * from t2;
+
+insert into t1 values
+(1, 'Luo','Frank'),(2, 'Xe','Emma'),(3, 'Li','Anna'),(4, 'Lun','Serg'),(5, 'Xu','Nils'),(6, 'Ja','Ute'),(7, 'Jin','Mike'),(8, 'Lio','Carl'),(9, 'Lang','Kevin'),(10, 'Ling','Lisa'),(11, 'Fang','Frank'),(12, 'Feng','Emma'),(13, 'Tuo','Anna'),(14, 'Tua','Serg'),(15, 'Moa','Nils'),(16, 'Hua','Ute'),(17, 'Xufa','Mike'),(18, 'Lulu','Carl'),(19, 'Hoho','Kevin'),(20, 'Tata','Lisa');
+
+DELIMITER $$;
+
+CREATE TRIGGER tr_upd
+BEFORE UPDATE on t1
+FOR EACH ROW
+BEGIN
+REPLACE INTO v2(a_p_name, a_p_first_name) VALUES(old.p_name, old.p_first_name);
+END;
+$$
+DELIMITER ;$$
+
+update t1 set p_first_name='Yunxi' where p_id=1;
+
+drop view v2;
+drop table t1,t2;
+drop sequence s1;
+
+
+--echo # REPLACE SELECT & view
+create sequence s1 increment by 1 start with 1;
+create table t1 (p_id integer, p_name varchar(128), p_first_name varchar(128));
+create table t2 (a_id integer default nextval(s1), a_p_name varchar(128), a_p_first_name varchar(128), t timestamp default current_timestamp);
+create view v2 as select * from t2;
+
+insert into t1 values
+(1, 'Luo','Frank'),(2, 'Xe','Emma'),(3, 'Li','Anna'),(4, 'Lun','Serg'),(5, 'Xu','Nils'),(6, 'Ja','Ute'),(7, 'Jin','Mike'),(8, 'Lio','Carl'),(9, 'Lang','Kevin'),(10, 'Ling','Lisa'),(11, 'Fang','Frank'),(12, 'Feng','Emma'),(13, 'Tuo','Anna'),(14, 'Tua','Serg'),(15, 'Moa','Nils'),(16, 'Hua','Ute'),(17, 'Xufa','Mike'),(18, 'Lulu','Carl'),(19, 'Hoho','Kevin'),(20, 'Tata','Lisa');
+
+DELIMITER $$;
+
+CREATE TRIGGER tr_upd
+BEFORE UPDATE on t1
+FOR EACH ROW
+BEGIN
+REPLACE INTO v2(a_p_name, a_p_first_name) SELECT old.p_name, old.p_first_name;
+END;
+$$
+DELIMITER ;$$
+
+update t1 set p_first_name='Yunxi' where p_id=1;
+
+drop view v2;
+drop table t1,t2;
+drop sequence s1;
+
 --echo # End of 10.3 tests

sql/sp_head.cc

@@ -4652,6 +4652,7 @@ typedef struct st_sp_table
   uint lock_count;
   uint query_lock_count;
   uint8 trg_event_map;
+  my_bool for_insert_data;
 } SP_TABLE;
 
 
@@ -4747,6 +4748,7 @@ sp_head::merge_table_list(THD *thd, TABLE_LIST *table, LEX *lex_for_tmp_check)
         if (tab->query_lock_count > tab->lock_count)
           tab->lock_count++;
         tab->trg_event_map|= table->trg_event_map;
+        tab->for_insert_data|= table->for_insert_data;
       }
       else
       {
@@ -4770,6 +4772,7 @@ sp_head::merge_table_list(THD *thd, TABLE_LIST *table, LEX *lex_for_tmp_check)
         tab->lock_type= table->lock_type;
         tab->lock_count= tab->query_lock_count= 1;
         tab->trg_event_map= table->trg_event_map;
+        tab->for_insert_data= table->for_insert_data;
         if (my_hash_insert(&m_sptabs, (uchar *)tab))
           return FALSE;
       }
@@ -4853,7 +4856,8 @@ sp_head::add_used_tables_to_table_list(THD *thd,
                                            TABLE_LIST::PRELOCK_ROUTINE,
                                            belong_to_view,
                                            stab->trg_event_map,
-                                           query_tables_last_ptr);
+                                           query_tables_last_ptr,
+                                           stab->for_insert_data);
       tab_buff+= ALIGN_SIZE(sizeof(TABLE_LIST));
       result= TRUE;
     }

sql/sql_base.cc

@@ -4420,9 +4420,11 @@ add_internal_tables(THD *thd, Query_tables_list *prelocking_ctx,
                     TABLE_LIST *tables)
 {
   TABLE_LIST *global_table_list= prelocking_ctx->query_tables;
+  DBUG_ENTER("add_internal_tables");
 
   do
   {
+    DBUG_PRINT("info", ("table name: %s", tables->table_name.str));
     /*
       Skip table if already in the list. Can happen with prepared statements
     */
@@ -4432,20 +4434,22 @@ add_internal_tables(THD *thd, Query_tables_list *prelocking_ctx,
 
     TABLE_LIST *tl= (TABLE_LIST *) thd->alloc(sizeof(TABLE_LIST));
     if (!tl)
-      return TRUE;
+      DBUG_RETURN(TRUE);
     tl->init_one_table_for_prelocking(&tables->db,
                                       &tables->table_name,
                                       NULL, tables->lock_type,
                                       TABLE_LIST::PRELOCK_NONE,
                                       0, 0,
-                                      &prelocking_ctx->query_tables_last);
+                                      &prelocking_ctx->query_tables_last,
+                                      tables->for_insert_data);
     /*
       Store link to the new table_list that will be used by open so that
       Item_func_nextval() can find it
     */
     tables->next_local= tl;
+    DBUG_PRINT("info", ("table name: %s added", tables->table_name.str));
   } while ((tables= tables->next_global));
-  return FALSE;
+  DBUG_RETURN(FALSE);
 }
 
 
@@ -4476,6 +4480,7 @@ bool DML_prelocking_strategy::
 handle_table(THD *thd, Query_tables_list *prelocking_ctx,
              TABLE_LIST *table_list, bool *need_prelocking)
 {
+  DBUG_ENTER("handle_table");
   TABLE *table= table_list->table;
   /* We rely on a caller to check that table is going to be changed. */
   DBUG_ASSERT(table_list->lock_type >= TL_WRITE_ALLOW_WRITE ||
@@ -4506,7 +4511,7 @@ handle_table(THD *thd, Query_tables_list *prelocking_ctx,
       {
         if (arena)
           thd->restore_active_arena(arena, &backup);
-        return TRUE;
+        DBUG_RETURN(TRUE);
       }
 
       *need_prelocking= TRUE;
@@ -4534,7 +4539,8 @@ handle_table(THD *thd, Query_tables_list *prelocking_ctx,
                                           NULL, lock_type,
                                           TABLE_LIST::PRELOCK_FK,
                                           table_list->belong_to_view, op,
-                                          &prelocking_ctx->query_tables_last);
+                                          &prelocking_ctx->query_tables_last,
+                                          table_list->for_insert_data);
       }
       if (arena)
         thd->restore_active_arena(arena, &backup);
@@ -4542,8 +4548,11 @@ handle_table(THD *thd, Query_tables_list *prelocking_ctx,
   }
 
   /* Open any tables used by DEFAULT (like sequence tables) */
+  DBUG_PRINT("info", ("table: %p  name: %s  db: %s  flags: %u",
+                      table_list, table_list->table_name.str,
+                      table_list->db.str, table_list->for_insert_data));
   if (table->internal_tables &&
-      ((sql_command_flags[thd->lex->sql_command] & CF_INSERTS_DATA) ||
+      (table_list->for_insert_data ||
        thd->lex->default_used))
   {
     Query_arena *arena, backup;
@@ -4556,10 +4565,10 @@ handle_table(THD *thd, Query_tables_list *prelocking_ctx,
     if (unlikely(error))
     {
       *need_prelocking= TRUE;
-      return TRUE;
+      DBUG_RETURN(TRUE);
     }
   }
-  return FALSE;
+  DBUG_RETURN(FALSE);
 }
 
 
@@ -4576,7 +4585,7 @@ bool open_and_lock_internal_tables(TABLE *table, bool lock_table)
   THD *thd= table->in_use;
   TABLE_LIST *tl;
   MYSQL_LOCK *save_lock,*new_lock;
-  DBUG_ENTER("open_internal_tables");
+  DBUG_ENTER("open_and_lock_internal_tables");
 
   /* remove pointer to old select_lex which is already destroyed */
   for (tl= table->internal_tables ; tl ; tl= tl->next_global)

sql/sql_lex.h

@@ -4060,6 +4060,8 @@ public:
   }
   bool tvc_finalize();
   bool tvc_finalize_derived();
+
+  void mark_first_table_as_inserting();
 };
 
 

sql/sql_parse.cc

@@ -3282,6 +3282,10 @@ mysql_execute_command(THD *thd)
 #endif
   DBUG_ENTER("mysql_execute_command");
 
+  // check that we correctly marked first table for data insertion
+  DBUG_ASSERT(!(sql_command_flags[lex->sql_command] & CF_INSERTS_DATA) ||
+              first_table->for_insert_data);
+
   DBUG_ASSERT(thd->transaction.stmt.is_empty() || thd->in_sub_stmt);
   /*
     Each statement or replication event which might produce deadlock
@@ -10200,3 +10204,14 @@ CHARSET_INFO *find_bin_collation(CHARSET_INFO *cs)
   }
   return cs;
 }
+
+void LEX::mark_first_table_as_inserting()
+{
+  TABLE_LIST *t= select_lex.table_list.first;
+  DBUG_ENTER("Query_tables_list::mark_tables_with_important_flags");
+  DBUG_ASSERT(sql_command_flags[sql_command] & CF_INSERTS_DATA);
+  t->for_insert_data= TRUE;
+  DBUG_PRINT("info", ("table_list: %p  name: %s  db: %s  command: %u",
+                      t, t->table_name.str,t->db.str, sql_command));
+  DBUG_VOID_RETURN;
+}

sql/sql_view.cc

@@ -1490,6 +1490,7 @@ bool mysql_make_view(THD *thd, TABLE_SHARE *share, TABLE_LIST *table,
         privileges of top_view
       */
       tbl->grant.want_privilege= SELECT_ACL;
+
       /*
         After unfolding the view we lose the list of tables referenced in it
         (we will have only a list of underlying tables in case of MERGE
@@ -1540,6 +1541,18 @@ bool mysql_make_view(THD *thd, TABLE_SHARE *share, TABLE_LIST *table,
         views with subqueries in select list.
       */
       view_main_select_tables= lex->select_lex.table_list.first;
+      /*
+        Mergeable view can be used for inserting, so we move the flag down
+      */
+      if (table->for_insert_data)
+      {
+        for (TABLE_LIST *t= view_main_select_tables;
+             t;
+             t= t->next_local)
+        {
+          t->for_insert_data= TRUE;
+        }
+      }
 
       /*
         Let us set proper lock type for tables of the view's main

sql/sql_yacc.yy

@@ -7888,6 +7888,7 @@ alter:
               MYSQL_YYABORT;
             Lex->select_lex.db= (Lex->select_lex.table_list.first)->db;
             Lex->create_last_non_select_table= Lex->last_table();
+            Lex->mark_first_table_as_inserting();
           }
           alter_commands
           {
@@ -13459,7 +13460,9 @@ insert:
             Lex->current_select= &Lex->select_lex;
           }
           insert_field_spec opt_insert_update
-          {}
+          {
+            Lex->mark_first_table_as_inserting();
+          }
         ;
 
 replace:
@@ -13476,7 +13479,9 @@ replace:
             Lex->current_select= &Lex->select_lex;
           }
           insert_field_spec
-          {}
+          {
+            Lex->mark_first_table_as_inserting();
+          }
         ;
 
 insert_lock_option:
@@ -14859,7 +14864,9 @@ load:
           opt_xml_rows_identified_by
           opt_field_term opt_line_term opt_ignore_lines opt_field_or_var_spec
           opt_load_data_set_spec
-          {}
+          {
+            Lex->mark_first_table_as_inserting();
+          }
           ;
 
 data_or_xml:

sql/sql_yacc_ora.yy

@@ -7825,6 +7825,7 @@ alter:
               MYSQL_YYABORT;
             Lex->select_lex.db= (Lex->select_lex.table_list.first)->db;
             Lex->create_last_non_select_table= Lex->last_table();
+            Lex->mark_first_table_as_inserting();
           }
           alter_commands
           {
@@ -13420,7 +13421,9 @@ insert:
             Lex->current_select= &Lex->select_lex;
           }
           insert_field_spec opt_insert_update
-          {}
+          {
+            Lex->mark_first_table_as_inserting();
+          }
         ;
 
 replace:
@@ -13437,7 +13440,9 @@ replace:
             Lex->current_select= &Lex->select_lex;
           }
           insert_field_spec
-          {}
+          {
+            Lex->mark_first_table_as_inserting();
+          }
         ;
 
 insert_lock_option:
@@ -14826,7 +14831,9 @@ load:
           opt_xml_rows_identified_by
           opt_field_term opt_line_term opt_ignore_lines opt_field_or_var_spec
           opt_load_data_set_spec
-          {}
+          {
+            Lex->mark_first_table_as_inserting();
+          }
           ;
 
 data_or_xml:

sql/table.h

@@ -1985,7 +1985,8 @@ struct TABLE_LIST
                                             prelocking_types prelocking_type,
                                             TABLE_LIST *belong_to_view_arg,
                                             uint8 trg_event_map_arg,
-                                            TABLE_LIST ***last_ptr)
+                                            TABLE_LIST ***last_ptr,
+                                            my_bool insert_data)
 
   {
     init_one_table(db_arg, table_name_arg, alias_arg, lock_type_arg);
@@ -2000,6 +2001,7 @@ struct TABLE_LIST
     **last_ptr= this;
     prev_global= *last_ptr;
     *last_ptr= &next_global;
+    for_insert_data= insert_data;
   }
 
 
@@ -2411,6 +2413,8 @@ struct TABLE_LIST
   /* System Versioning */
   vers_select_conds_t vers_conditions;
 
+  my_bool for_insert_data;
+
   /**
      @brief
        Find the bottom in the chain of embedded table VIEWs.