MDEV-32984 Update federated table and column privileges

mark auto-inc columns for read/write on INSERT,
but only for read on UPDATE

mysql-test/suite/federated/update.result

+connect  master,127.0.0.1,root,,test,$MASTER_MYPORT,;
+connect  slave,127.0.0.1,root,,test,$SLAVE_MYPORT,;
+connection master;
+CREATE DATABASE federated;
+connection slave;
+CREATE DATABASE federated;
+#
+# MDEV-32984 Update federated table and column privileges
+#
+connection slave;
+create database db1;
+create user my@localhost identified by '1qaz2wsx';
+create table db1.t1 (
+f1 int auto_increment primary key,
+f2 varchar(50),
+f3 varchar(50),
+unique (f2)
+);
+grant insert, select (f1, f2, f3), update (f3) on db1.t1 to my@localhost;
+connection master;
+create table tt1 engine=federated connection='mysql://my:1qaz2wsx@localhost:$SLAVE_MYPORT/db1/t1';
+insert into tt1 (f2,f3) values ('test','123');
+select * from tt1;
+f1	f2	f3
+1	test	123
+update tt1 set f3='123456' where f2='test';
+drop table tt1;
+connection slave;
+drop database db1;
+drop user my@localhost;
+connection master;
+DROP TABLE IF EXISTS federated.t1;
+DROP DATABASE IF EXISTS federated;
+connection slave;
+DROP TABLE IF EXISTS federated.t1;
+DROP DATABASE IF EXISTS federated;

mysql-test/suite/federated/update.test

+source include/federated.inc;
+source have_federatedx.inc;
+
+--echo #
+--echo # MDEV-32984 Update federated table and column privileges
+--echo #
+connection slave;
+create database db1;
+create user my@localhost identified by '1qaz2wsx';
+create table db1.t1 (
+  f1 int auto_increment primary key,
+  f2 varchar(50),
+  f3 varchar(50),
+  unique (f2)
+);
+grant insert, select (f1, f2, f3), update (f3) on db1.t1 to my@localhost;
+
+connection master;
+evalp create table tt1 engine=federated connection='mysql://my:1qaz2wsx@localhost:$SLAVE_MYPORT/db1/t1';
+insert into tt1 (f2,f3) values ('test','123');
+select * from tt1;
+update tt1 set f3='123456' where f2='test';
+
+drop table tt1;
+
+connection slave;
+drop database db1;
+drop user my@localhost;
+
+source include/federated_cleanup.inc;
+
+

sql/log_event_server.cc

@@ -7103,7 +7103,7 @@ Write_rows_log_event::do_before_row_operations(const Slave_reporting_capability
        indexed and it cannot have a DEFAULT value).
     */
     m_table->auto_increment_field_not_null= FALSE;
-    m_table->mark_auto_increment_column();
+    m_table->mark_auto_increment_column(true);
   }
 
   return error;

sql/table.cc

@@ -7320,7 +7320,7 @@ inline void TABLE::mark_index_columns_for_read(uint index)
     always set and sometimes read.
 */
 
-void TABLE::mark_auto_increment_column()
+void TABLE::mark_auto_increment_column(bool is_insert)
 {
   DBUG_ASSERT(found_next_number_field);
   /*
@@ -7328,7 +7328,8 @@ void TABLE::mark_auto_increment_column()
     store() to check overflow of auto_increment values
   */
   bitmap_set_bit(read_set, found_next_number_field->field_index);
-  bitmap_set_bit(write_set, found_next_number_field->field_index);
+  if (is_insert)
+    bitmap_set_bit(write_set, found_next_number_field->field_index);
   if (s->next_number_keypart)
     mark_index_columns_for_read(s->next_number_index);
   file->column_bitmaps_signal();
@@ -7453,7 +7454,7 @@ void TABLE::mark_columns_needed_for_update()
   else
   {
     if (found_next_number_field)
-      mark_auto_increment_column();
+      mark_auto_increment_column(false);
   }
 
   if (file->ha_table_flags() & HA_PRIMARY_KEY_REQUIRED_FOR_DELETE)
@@ -7527,7 +7528,7 @@ void TABLE::mark_columns_needed_for_insert()
     triggers->mark_fields_used(TRG_EVENT_INSERT);
   }
   if (found_next_number_field)
-    mark_auto_increment_column();
+    mark_auto_increment_column(true);
   if (default_field)
     mark_default_fields_for_write(TRUE);
   /* Mark virtual columns for insert */

sql/table.h

@@ -1585,7 +1585,7 @@ struct TABLE
   void mark_index_columns_no_reset(uint index, MY_BITMAP *bitmap);
   void mark_index_columns_for_read(uint index);
   void restore_column_maps_after_keyread(MY_BITMAP *backup);
-  void mark_auto_increment_column(void);
+  void mark_auto_increment_column(bool insert_fl);
   void mark_columns_needed_for_update(void);
   void mark_columns_needed_for_delete(void);
   void mark_columns_needed_for_insert(void);