MySQL :: MySQL 8.4 Reference Manual :: 18.6 The BLACKHOLE Storage EngineThe BLACKHOLE storage engine acts as a “black hole” that accepts data but throws it away and does not store it. Retrievals always return an empty result: mysql> CREATE TABLE test(i INT, c CHAR(10)) ENGINE = BLACKHOLE; Query OK, 0 rows affected (0.03 sec) mysql> INSERT INTO test VALUES(1,'record one'),(2,'record two'); Query OK, 2 rows affected (0.00 sec) Records: 2 Duplicates: 0 Warnings: 0 mysql>
