Function ExecCleanupTupleRouting

src/backend/executor/execPartition.c:1188–1237

* ExecCleanupTupleRouting -- Clean up objects allocated for partition tuple * routing. * * Close all the partitioned tables, leaf partitions, and their indices. */

 * Close all the partitioned tables, leaf partitions, and their indices.
 */
void
ExecCleanupTupleRouting(ModifyTableState *mtstate,
						PartitionTupleRouting *proute)
{
	int			i;

	/*
	 * Remember, proute->partition_dispatch_info[0] corresponds to the root
	 * partitioned table, which we must not try to close, because it is the
	 * main target table of the query that will be closed by callers such as
	 * ExecEndPlan() or DoCopy(). Also, tupslot is NULL for the root
	 * partitioned table.
	 */
	for (i = 1; i < proute->num_dispatch; i++)
	{
		PartitionDispatch pd = proute->partition_dispatch_info[i];

		table_close(pd->reldesc, NoLock);

		if (pd->tupslot)
			ExecDropSingleTupleTableSlot(pd->tupslot);
	}

	for (i = 0; i < proute->num_partitions; i++)
	{
		ResultRelInfo *resultRelInfo = proute->partitions[i];

		/* Allow any FDWs to shut down */
		if (resultRelInfo->ri_FdwRoutine != NULL &&
			resultRelInfo->ri_FdwRoutine->EndForeignInsert != NULL)
			resultRelInfo->ri_FdwRoutine->EndForeignInsert(mtstate->ps.state,
														   resultRelInfo);

		/*
		 * Close it if it's not one of the result relations borrowed from the
		 * owning ModifyTableState; those will be closed by ExecEndPlan().
		 */
		if (proute->is_borrowed_rel[i])
			continue;

		/*
		 * Only leaf node can have a valid access method.  If we find an
		 * appendoptimized table, ensure the DML operation is finished.
		 */
		table_dml_fini(resultRelInfo->ri_RelationDesc, mtstate->operation);

		ExecCloseIndices(resultRelInfo);
		table_close(resultRelInfo->ri_RelationDesc, NoLock);
	}
}

/* ----------------
 *		FormPartitionKeyDatum