Query time 0.00140
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "212.41"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "38.00"
},
"nested_loop": [
{
"table": {
"table_name": "q_images_links",
"access_type": "range",
"possible_keys": [
"object_id"
],
"key": "object_id",
"used_key_parts": [
"object_id",
"object_type",
"type"
],
"key_length": "81",
"rows_examined_per_scan": 38,
"rows_produced_per_join": 38,
"filtered": "100.00",
"index_condition": "((`portal`.`q_images_links`.`object_type` = 'product') and (`portal`.`q_images_links`.`type` = 'M') and (`portal`.`q_images_links`.`object_id` in ('442','443','444','445','446','447','448','449','310','311','312','313','314','315','316','317','318','319','320','321','322','323','324','325','326','327','328','329','330','331')))",
"cost_info": {
"read_cost": "75.61",
"eval_cost": "7.60",
"prefix_cost": "83.21",
"data_read_per_join": "3K"
},
"used_columns": [
"pair_id",
"object_id",
"object_type",
"image_id",
"detailed_id",
"type",
"position"
]
}
},
{
"table": {
"table_name": "q_images",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"image_id"
],
"key_length": "4",
"ref": [
"portal.q_images_links.image_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 38,
"filtered": "100.00",
"cost_info": {
"read_cost": "38.00",
"eval_cost": "7.60",
"prefix_cost": "128.81",
"data_read_per_join": "29K"
},
"used_columns": [
"image_id",
"image_path",
"image_x",
"image_y",
"is_high_res"
]
}
},
{
"table": {
"table_name": "q_common_descriptions",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"object_id",
"lang_code",
"object_holder"
],
"key_length": "107",
"ref": [
"portal.q_images.image_id",
"const",
"const"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 38,
"filtered": "100.00",
"cost_info": {
"read_cost": "38.00",
"eval_cost": "7.60",
"prefix_cost": "174.41",
"data_read_per_join": "22K"
},
"used_columns": [
"object_id",
"description",
"lang_code",
"object_holder"
],
"attached_condition": "<if>(is_not_null_compl(q_common_descriptions), (`portal`.`q_common_descriptions`.`object_id` = `portal`.`q_images`.`image_id`), true)"
}
}
]
}
}
}
Result
image_id |
image_path |
image_x |
image_y |
is_high_res |
pair_id |
object_id |
object_type |
detailed_id |
type |
position |
alt |
images_image_id |
0 |
|
|
|
|
642 |
310 |
product |
2619 |
M |
0 |
|
|
0 |
|
|
|
|
644 |
311 |
product |
2621 |
M |
0 |
|
|
0 |
|
|
|
|
646 |
312 |
product |
2623 |
M |
0 |
|
|
0 |
|
|
|
|
648 |
313 |
product |
2625 |
M |
0 |
|
|
0 |
|
|
|
|
650 |
314 |
product |
2627 |
M |
0 |
|
|
0 |
|
|
|
|
652 |
315 |
product |
2629 |
M |
0 |
|
|
0 |
|
|
|
|
654 |
316 |
product |
2631 |
M |
0 |
|
|
0 |
|
|
|
|
656 |
317 |
product |
2633 |
M |
0 |
|
|
0 |
|
|
|
|
658 |
318 |
product |
2635 |
M |
0 |
|
|
0 |
|
|
|
|
660 |
319 |
product |
2637 |
M |
0 |
|
|
0 |
|
|
|
|
662 |
320 |
product |
2639 |
M |
0 |
|
|
0 |
|
|
|
|
664 |
321 |
product |
2641 |
M |
0 |
|
|
0 |
|
|
|
|
666 |
322 |
product |
2643 |
M |
0 |
|
|
0 |
|
|
|
|
668 |
323 |
product |
2645 |
M |
0 |
|
|
0 |
|
|
|
|
670 |
324 |
product |
2647 |
M |
0 |
|
|
0 |
|
|
|
|
674 |
326 |
product |
2651 |
M |
0 |
|
|
0 |
|
|
|
|
676 |
327 |
product |
2653 |
M |
0 |
|
|
0 |
|
|
|
|
678 |
328 |
product |
2655 |
M |
0 |
|
|
0 |
|
|
|
|
680 |
329 |
product |
2657 |
M |
0 |
|
|
0 |
|
|
|
|
681 |
330 |
product |
2658 |
M |
0 |
|
|
0 |
|
|
|
|
683 |
331 |
product |
2660 |
M |
0 |
|
|
0 |
|
|
|
|
899 |
442 |
product |
2876 |
M |
0 |
|
|
0 |
|
|
|
|
901 |
443 |
product |
2878 |
M |
0 |
|
|
0 |
|
|
|
|
903 |
444 |
product |
2880 |
M |
0 |
|
|
0 |
|
|
|
|
905 |
445 |
product |
2882 |
M |
0 |
|
|
0 |
|
|
|
|
907 |
446 |
product |
2884 |
M |
0 |
|
|
0 |
|
|
|
|
909 |
447 |
product |
2886 |
M |
0 |
|
|
0 |
|
|
|
|
911 |
448 |
product |
2888 |
M |
0 |
|
|
0 |
|
|
|
|
913 |
449 |
product |
2890 |
M |
0 |
|
|
0 |
|
|
|
|
68816 |
325 |
product |
70767 |
M |
0 |
|
|