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  <dt><pre><span class="Keyword">proc</span> <a href="#delete%2CPostgresQuery"><span class="Identifier">delete</span></a><span class="Other">(</span><span class="Identifier">self</span><span class="Other">:</span> <a href="postgres_types.html#PostgresQuery"><span class="Identifier">PostgresQuery</span></a><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">owned</span><span class="Other">(</span><span class="Identifier">Future</span><span class="Other">[</span><span class="I