The short version
I created > one billion InnoDB tables in MySQL 8.0 (tables, not rows) just for fun. Here is the proof:
$ mysql -A Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 1425329 Server version: 8.0.12 MySQL Community Server - GPL Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. mysql> select count(*) from information_schema.tables; +------------+ | count(*) | +------------+ | 1011570298 | +------------+ 1 row in set (6 hours 57 min 6.31 sec)
Yes, it took 6 hours and 57 minutes to count them all!
Why does anyone need one billion tables?
In my previous blog post, I created and tested …[Read more]