Query time 0.00143
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` = 'A') and (`portal`.`q_images_links`.`object_id` in ('393','394','395','396','397','398','399','400','401','402','403','404','405','406','407','408','409','410','411','412','413','414','415','416','417','418','419','420','421','263')))",
"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 |
|
|
|
|
854 |
421 |
product |
2831 |
A |
1 |
|
|
0 |
|
|
|
|
853 |
421 |
product |
2830 |
A |
2 |
|
|
0 |
|
|
|
|
549 |
263 |
product |
2526 |
A |
10 |
|
|
0 |
|
|
|
|
806 |
393 |
product |
2783 |
A |
10 |
|
|
0 |
|
|
|
|
808 |
394 |
product |
2785 |
A |
10 |
|
|
0 |
|
|
|
|
810 |
395 |
product |
2787 |
A |
10 |
|
|
0 |
|
|
|
|
812 |
396 |
product |
2789 |
A |
10 |
|
|
0 |
|
|
|
|
814 |
397 |
product |
2791 |
A |
10 |
|
|
0 |
|
|
|
|
816 |
398 |
product |
2793 |
A |
10 |
|
|
0 |
|
|
|
|
818 |
399 |
product |
2795 |
A |
10 |
|
|
0 |
|
|
|
|
820 |
400 |
product |
2797 |
A |
10 |
|
|
0 |
|
|
|
|
822 |
401 |
product |
2799 |
A |
10 |
|
|
0 |
|
|
|
|
824 |
402 |
product |
2801 |
A |
10 |
|
|
0 |
|
|
|
|
826 |
403 |
product |
2803 |
A |
10 |
|
|
0 |
|
|
|
|
828 |
404 |
product |
2805 |
A |
10 |
|
|
0 |
|
|
|
|
830 |
405 |
product |
2807 |
A |
10 |
|
|
0 |
|
|
|
|
833 |
407 |
product |
2810 |
A |
10 |
|
|
0 |
|
|
|
|
835 |
408 |
product |
2812 |
A |
10 |
|
|
0 |
|
|
|
|
837 |
409 |
product |
2814 |
A |
10 |
|
|
0 |
|
|
|
|
839 |
410 |
product |
2816 |
A |
10 |
|
|
0 |
|
|
|
|
841 |
411 |
product |
2818 |
A |
10 |
|
|
0 |
|
|
|
|
843 |
412 |
product |
2820 |
A |
10 |
|
|
0 |
|
|
|
|
852 |
420 |
product |
2829 |
A |
10 |
|
|