{
    'scan_on' => {
        'index_name' => 'test_pkey',
        'table_name' => 'test'
    },
    'estimated_startup_cost' => '0',
    'estimated_rows' => '1',
    'type' => 'Index Scan',
    'extra_info' => [
        'Index Cond: (id = 4)'
    ],
    'estimated_total_cost' => '8.27',
    'estimated_row_width' => '4'
}
