I'm receiving the following alert from Magento2:
main.WARNING: Memory size allocated for the temporary table is more than 20% of innodb_buffer_pool_size. Please update innodb_buffer_pool_size or decrease batch size value (which decreases memory usages for the temporary table). Current batch size: 100000; Allocated memory size: 130000000 bytes; InnoDB buffer pool size: 536870912 bytes.  
But 130000000 bytes is less than 536870912 bytes!!!!
Where I'm wrong?
I'm going to decrease bath size as described here but I think there are other problems