> [!ExecuteGather] > <table><tr><td rowspan="4" width="25%"><img src="assets/wl_ipc_executegather.png"></td><td><b>Wait Category</b></td><td>IPC</td></tr><tr><td><b>Mechanism</b></td><td><code>ExecParallelGather</code></td></tr><tr><td><b>Operations</b></td><td><a href="Operations/Table/SeqScan">SeqScan</a>, <a href="Operations/ResultSet/HashJoin">HashJoin</a></td></tr><tr><td><b>Resources</b></td><td><a href="Resources/CPU">CPU</a>, <a href="Resources/RAM">Memory</a></td></tr><tr><td colspan="3">This wait event represents the orchestration cost of a <b>Parallel Query</b>. When a query plan includes a <code>Gather</code> node, the "Leader" backend delegates the heavy lifting to multiple parallel workers.</td></tr></table>