Query time 0.00130
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "260.41"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "48.00"
},
"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": 48,
"rows_produced_per_join": 48,
"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 ('211','212','213','214','215','216','217','218','219','224','225','226','227','228','174','175','176','177','178','179','180','181','182','183','184','185','186','187','188','189')))",
"cost_info": {
"read_cost": "87.61",
"eval_cost": "9.60",
"prefix_cost": "97.21",
"data_read_per_join": "4K"
},
"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": 48,
"filtered": "100.00",
"cost_info": {
"read_cost": "48.00",
"eval_cost": "9.60",
"prefix_cost": "154.81",
"data_read_per_join": "36K"
},
"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": 48,
"filtered": "100.00",
"cost_info": {
"read_cost": "48.00",
"eval_cost": "9.60",
"prefix_cost": "212.41",
"data_read_per_join": "28K"
},
"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 |
|
|
|
|
377 |
174 |
product |
2354 |
M |
0 |
|
|
0 |
|
|
|
|
379 |
175 |
product |
2356 |
M |
0 |
|
|
0 |
|
|
|
|
380 |
176 |
product |
2357 |
M |
0 |
|
|
0 |
|
|
|
|
382 |
177 |
product |
2359 |
M |
0 |
|
|
0 |
|
|
|
|
384 |
178 |
product |
2361 |
M |
0 |
|
|
0 |
|
|
|
|
386 |
179 |
product |
2363 |
M |
0 |
|
|
0 |
|
|
|
|
388 |
180 |
product |
2365 |
M |
0 |
|
|
0 |
|
|
|
|
392 |
182 |
product |
2369 |
M |
0 |
|
|
0 |
|
|
|
|
394 |
183 |
product |
2371 |
M |
0 |
|
|
0 |
|
|
|
|
396 |
184 |
product |
2373 |
M |
0 |
|
|
0 |
|
|
|
|
398 |
185 |
product |
2375 |
M |
0 |
|
|
0 |
|
|
|
|
400 |
186 |
product |
2377 |
M |
0 |
|
|
0 |
|
|
|
|
402 |
187 |
product |
2379 |
M |
0 |
|
|
0 |
|
|
|
|
404 |
188 |
product |
2381 |
M |
0 |
|
|
0 |
|
|
|
|
406 |
189 |
product |
2383 |
M |
0 |
|
|
0 |
|
|
|
|
424 |
219 |
product |
2401 |
M |
0 |
|
|
0 |
|
|
|
|
429 |
224 |
product |
2406 |
M |
0 |
|
|
0 |
|
|
|
|
430 |
225 |
product |
2407 |
M |
0 |
|
|
0 |
|
|
|
|
432 |
227 |
product |
2409 |
M |
0 |
|
|
0 |
|
|
|
|
433 |
228 |
product |
2410 |
M |
0 |
|
|
0 |
|
|
|
|
457 |
211 |
product |
2434 |
M |
0 |
|
|
0 |
|
|
|
|
459 |
212 |
product |
2436 |
M |
0 |
|
|
0 |
|
|
|
|
461 |
213 |
product |
2438 |
M |
0 |
|
|
0 |
|
|
|
|
463 |
214 |
product |
2440 |
M |
0 |
|
|
0 |
|
|
|
|
465 |
215 |
product |
2442 |
M |
0 |
|
|
0 |
|
|
|
|
467 |
216 |
product |
2444 |
M |
0 |
|
|
0 |
|
|
|
|
469 |
217 |
product |
2446 |
M |
0 |
|
|
0 |
|
|
|
|
471 |
218 |
product |
2448 |
M |
0 |
|
|
0 |
|
|
|
|
79290 |
226 |
product |
81233 |
M |
0 |
|
|
0 |
|
|
|
|
81467 |
181 |
product |
83410 |
M |
0 |
|
|