call ha_release_temporary_latches to fix bug 32149

sql/sql_insert.cc

@@ -3066,6 +3066,9 @@ bool select_insert::send_data(List<Item> &values)
     }
   }
 
+  // Release latches in case bulk insert takes a long time
+  ha_release_temporary_latches(thd);
+  
   error= write_record(thd, table, &info);
   table->auto_increment_field_not_null= FALSE;
   

sql/sql_select.cc

@@ -10526,6 +10526,9 @@ free_tmp_table(THD *thd, TABLE *entry)
   save_proc_info=thd->proc_info;
   thd_proc_info(thd, "removing tmp table");
 
+  // Release latches since this can take a long time
+  ha_release_temporary_latches(thd);
+
   if (entry->file)
   {
     if (entry->db_stat)
@@ -10571,6 +10574,10 @@ bool create_myisam_from_heap(THD *thd, TABLE *table, TMP_TABLE_PARAM *param,
     table->file->print_error(error,MYF(0));
     DBUG_RETURN(1);
   }
+
+  // Release latches since this can take a long time
+  ha_release_temporary_latches(thd);
+
   new_table= *table;
   share= *table->s;
   new_table.s= &share;

storage/myisam/ha_myisam.cc

@@ -1081,6 +1081,9 @@ int ha_myisam::repair(THD *thd, MI_CHECK &param, bool do_optimize)
   param.out_flag= 0;
   strmov(fixed_name,file->filename);
 
+  // Release latches since this can take a long time
+  ha_release_temporary_latches(thd);
+
   // Don't lock tables if we have used LOCK TABLE
   if (!thd->locked_tables && 
       mi_lock_database(file, table->s->tmp_table ? F_EXTRA_LCK : F_WRLCK))