Query time 0.00097
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "19.21"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "8.00"
},
"nested_loop": [
{
"table": {
"table_name": "cscart_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": 8,
"rows_produced_per_join": 8,
"filtered": "100.00",
"index_condition": "((`gaseus`.`cscart_images_links`.`object_type` = 'product') and (`gaseus`.`cscart_images_links`.`type` = 'M') and (`gaseus`.`cscart_images_links`.`object_id` in (7471,513,511,3672,512,3673,3674,4270)))",
"cost_info": {
"read_cost": "4.81",
"eval_cost": "0.80",
"prefix_cost": "5.61",
"data_read_per_join": "768"
},
"used_columns": [
"pair_id",
"object_id",
"object_type",
"image_id",
"detailed_id",
"type",
"position"
]
}
},
{
"table": {
"table_name": "cscart_images",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"image_id"
],
"key_length": "4",
"ref": [
"gaseus.cscart_images_links.detailed_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 8,
"filtered": "100.00",
"cost_info": {
"read_cost": "2.00",
"eval_cost": "0.80",
"prefix_cost": "8.41",
"data_read_per_join": "6K"
},
"used_columns": [
"image_id",
"image_path",
"image_x",
"image_y",
"is_high_res"
]
}
},
{
"table": {
"table_name": "cscart_common_descriptions",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"object_id",
"lang_code",
"object_holder"
],
"key_length": "108",
"ref": [
"gaseus.cscart_images.image_id",
"const",
"const"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 8,
"filtered": "100.00",
"cost_info": {
"read_cost": "2.00",
"eval_cost": "0.80",
"prefix_cost": "11.21",
"data_read_per_join": "4K"
},
"used_columns": [
"object_id",
"description",
"lang_code",
"object_holder"
]
}
}
]
}
}
}
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 |
1390207300-32478_600x600_2x_rw8t-2v.jpg |
500 |
399 |
N |
6943 |
7471 |
product |
10426 |
M |
0 |
|
10426 |
| 0 |
1497608585-4196-1_600x600_2x_mp08-hw.jpg |
459 |
500 |
N |
13212 |
511 |
product |
16692 |
M |
0 |
|
16692 |
| 0 |
1497608585-4196-1_600x600_2x_lk5h-18.jpg |
459 |
500 |
N |
13213 |
512 |
product |
16693 |
M |
0 |
|
16693 |
| 0 |
1497608585-4196-1_600x600_2x_dcgo-pk.jpg |
459 |
500 |
N |
13214 |
513 |
product |
16694 |
M |
0 |
|
16694 |
| 0 |
1497608585-4196-1_600x600_2x_kx26-rx.jpg |
459 |
500 |
N |
16373 |
3672 |
product |
19854 |
M |
0 |
|
19854 |
| 0 |
1497608585-4196-1_600x600_2x_q86a-sy.jpg |
459 |
500 |
N |
16374 |
3673 |
product |
19855 |
M |
0 |
|
19855 |
| 0 |
1497608585-4196-1_600x600_2x_ld8g-qi.jpg |
459 |
500 |
N |
16375 |
3674 |
product |
19856 |
M |
0 |
|
19856 |
| 0 |
1497608585-4196-1_600x600_2x.jpg |
459 |
500 |
N |
16971 |
4270 |
product |
20452 |
M |
0 |
|
20452 |