BLACKHOLE storage engine

The BLACKHOLE storage engine accepts data but does not store anything . So on retrieval it will return nothing .

When we create BLACKHOLE table the server will create file with name starts with table name with extension .frm . No other tables will be generated as it stores nothing .

It supports all types of indexes .

Though nothing is stored , the query statements get stored if binary logs are enabled .

It does not support AUTO INCREMENT

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