Commit be13cce

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<h1 id="keepalive">Keepalive</h1>

<p>Some clients keep idle connections for long periods of time - this is especially frequent when waiting for PostgreSQL notifications.

In this scenario, how can the client know the connection is still up, and hasn&#39;t been broken by a server or network outage?

For this purpose, Npgsql has a keepalive feature, which makes it send periodic <code>SELECT NULL</code> queries.

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<h2 id="keepalive">Keepalive</h2>

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