Query time 0.00116
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "164.81"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "31.00"
},
"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": 31,
"rows_produced_per_join": 31,
"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 ('31154','31155','31156','31157','31158','10387','10388','10389','10390','10391','10392','10393','10395','10396','10397','10398')))",
"cost_info": {
"read_cost": "53.21",
"eval_cost": "6.20",
"prefix_cost": "59.41",
"data_read_per_join": "2K"
},
"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.detailed_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 31,
"filtered": "100.00",
"cost_info": {
"read_cost": "31.00",
"eval_cost": "6.20",
"prefix_cost": "96.61",
"data_read_per_join": "23K"
},
"used_columns": [
"image_id",
"image_path",
"image_x",
"image_y",
"is_high_res"
],
"attached_condition": "<if>(is_not_null_compl(q_images), (`portal`.`q_images_links`.`detailed_id` = `portal`.`q_images`.`image_id`), true)"
}
},
{
"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": 31,
"filtered": "100.00",
"cost_info": {
"read_cost": "31.00",
"eval_cost": "6.20",
"prefix_cost": "133.81",
"data_read_per_join": "18K"
},
"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 |
61y2V5LB-PL._SX342_.jpg |
342 |
342 |
N |
21251 |
10387 |
product |
23213 |
M |
0 |
|
23213 |
0 |
61CgJx9g04L._SX522_.jpg |
522 |
522 |
N |
21256 |
10388 |
product |
23218 |
M |
0 |
|
23218 |
0 |
item_XL_39812580_157245894.jpg |
600 |
337 |
N |
21259 |
10389 |
product |
23221 |
M |
0 |
|
23221 |
0 |
xiaomi-human-sensor-507x405.png |
507 |
405 |
N |
21261 |
10390 |
product |
23223 |
M |
0 |
|
23223 |
0 |
20181129182139_31538.jpg |
500 |
500 |
N |
21264 |
10391 |
product |
23226 |
M |
0 |
|
23226 |
0 |
2_33.jpg |
1100 |
1100 |
N |
21267 |
10392 |
product |
23229 |
M |
0 |
|
23229 |
0 |
612rG8HLi1L._SY355_.jpg |
355 |
355 |
N |
21270 |
10393 |
product |
23232 |
M |
0 |
|
23232 |
0 |
41qfIGMbuPL._SX342_.jpg |
342 |
342 |
N |
21299 |
10395 |
product |
23261 |
M |
0 |
|
23261 |
0 |
41iQ33JAALL._SX342_.jpg |
342 |
342 |
N |
21301 |
10396 |
product |
23263 |
M |
0 |
|
23263 |
0 |
61CgJx9g04L._SL1000_.jpg |
1000 |
1000 |
N |
21305 |
10397 |
product |
23267 |
M |
0 |
|
23267 |
0 |
61yEbHYPNCL._SL1354_.jpg |
1354 |
1354 |
N |
21309 |
10398 |
product |
23271 |
M |
0 |
|
23271 |
0 |
61ppf0xnA5L._AC_UL436_SEARCH212385_.jpg |
397 |
436 |
N |
49761 |
31154 |
product |
51722 |
M |
0 |
|
51722 |
0 |
518-FHG2FPL.jpg |
500 |
500 |
N |
49762 |
31155 |
product |
51723 |
M |
0 |
|
51723 |
0 |
download__2__wwqm-i7.jpg |
300 |
300 |
N |
49763 |
31156 |
product |
51724 |
M |
0 |
|
51724 |
0 |
71MOMgMbWXL._AC_UL436_SEARCH212385_.jpg |
436 |
292 |
N |
49764 |
31157 |
product |
51725 |
M |
0 |
|
51725 |
0 |
61jJwAgW6mL._AC_UL436_SEARCH212385_.jpg |
436 |
436 |
N |
49765 |
31158 |
product |
51726 |
M |
0 |
|
51726 |