The Blackhole sink is a no-op sink that swallows all data. It is most useful for testing and benchmarking purposes, where the overhead of a real sink is undesirable.

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Configuring the Connection

Blackhole sinks can be created via the Web UI or directly in SQL. Blackhole connections have no options. As blackhole connections throw away the data, you can generally rely on schema inference when creating the table. For example, in SQL: 
CREATE TABLE blackhole
WITH (
    connector = 'blackhole'
);