{
    'type' => 'Limit',
    'estimated_startup_cost' => 0,
    'estimated_total_cost' => 0.34,
    'estimated_rows' => 1,
    'estimated_row_width' => 8,
    'sub_nodes' => [
    {
        'type' => 'Nested Loop',
        'estimated_startup_cost' => 0,
        'estimated_total_cost' => 335.2,
        'estimated_rows' => 1000,
        'estimated_row_width' => 8,
        'sub_nodes' => [
        {
            'scan_on' => {
                'table_name' => 'test',
                'table_alias' => 't2',
            },
            'estimated_startup_cost' => '0',
            'estimated_rows' => '1000',
            'type' => 'Seq Scan',
            'estimated_total_cost' => '14',
            'estimated_row_width' => '4',
        },
        {
            'scan_on' => {
                'table_alias' => 't1',
                'table_name' => 'test',
                'index_name' => 'test_pkey',
            },
            'estimated_startup_cost' => '0',
            'estimated_rows' => '1',
            'type' => 'Index Scan',
            'extra_info' => [ 'Index Cond: (t1.id = (t2.id + 1))', ],
            'estimated_total_cost' => '0.31',
            'estimated_row_width' => '4',
        }
        ]
    },
    ],
}
