Query time 0.00127
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "207.41"
},
"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 ('37091','7339','7338','7336','199','200','201','205','206','207','208','209','210','212','213','215','216','217','218','219','224','225','226','227','228')))",
"cost_info": {
"read_cost": "70.61",
"eval_cost": "7.60",
"prefix_cost": "78.21",
"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": "123.81",
"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": "169.41",
"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 |
|
|
|
|
431 |
226 |
product |
2408 |
A |
1 |
|
|
0 |
|
|
|
|
14350 |
7338 |
product |
16312 |
A |
1 |
|
|
0 |
|
|
|
|
14354 |
7339 |
product |
16316 |
A |
1 |
|
|
0 |
|
|
|
|
14351 |
7338 |
product |
16313 |
A |
2 |
|
|
0 |
|
|
|
|
14352 |
7338 |
product |
16314 |
A |
3 |
|
|
0 |
|
|
|
|
435 |
199 |
product |
2412 |
A |
10 |
|
|
0 |
|
|
|
|
437 |
200 |
product |
2414 |
A |
10 |
|
|
0 |
|
|
|
|
439 |
201 |
product |
2416 |
A |
10 |
|
|
0 |
|
|
|
|
446 |
205 |
product |
2423 |
A |
10 |
|
|
0 |
|
|
|
|
448 |
206 |
product |
2425 |
A |
10 |
|
|
0 |
|
|
|
|
450 |
207 |
product |
2427 |
A |
10 |
|
|
0 |
|
|
|
|
452 |
208 |
product |
2429 |
A |
10 |
|
|
0 |
|
|
|
|
454 |
209 |
product |
2431 |
A |
10 |
|
|
0 |
|
|
|
|
456 |
210 |
product |
2433 |
A |
10 |
|
|
0 |
|
|
|
|
460 |
212 |
product |
2437 |
A |
10 |
|
|
0 |
|
|
|
|
462 |
213 |
product |
2439 |
A |
10 |
|
|
0 |
|
|
|
|
466 |
215 |
product |
2443 |
A |
10 |
|
|
0 |
|
|
|
|
468 |
216 |
product |
2445 |
A |
10 |
|
|
0 |
|
|
|
|
470 |
217 |
product |
2447 |
A |
10 |
|
|
0 |
|
|
|
|
472 |
218 |
product |
2449 |
A |
10 |
|
|