Query time 0.00139
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "207.61"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "37.00"
},
"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": 37,
"rows_produced_per_join": 37,
"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 ('264','265','266','267','268','269','270','271','272','273','274','275','276','277','278','279','280','281','282','283','284','285','286','287','288','289','290','291','292','293')))",
"cost_info": {
"read_cost": "74.41",
"eval_cost": "7.40",
"prefix_cost": "81.81",
"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": 37,
"filtered": "100.00",
"cost_info": {
"read_cost": "37.00",
"eval_cost": "7.40",
"prefix_cost": "126.21",
"data_read_per_join": "28K"
},
"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": 37,
"filtered": "100.00",
"cost_info": {
"read_cost": "37.00",
"eval_cost": "7.40",
"prefix_cost": "170.61",
"data_read_per_join": "21K"
},
"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 |
|
|
|
|
550 |
264 |
product |
2527 |
M |
0 |
|
|
0 |
|
|
|
|
552 |
265 |
product |
2529 |
M |
0 |
|
|
0 |
|
|
|
|
554 |
266 |
product |
2531 |
M |
0 |
|
|
0 |
|
|
|
|
556 |
267 |
product |
2533 |
M |
0 |
|
|
0 |
|
|
|
|
558 |
268 |
product |
2535 |
M |
0 |
|
|
0 |
|
|
|
|
560 |
269 |
product |
2537 |
M |
0 |
|
|
0 |
|
|
|
|
562 |
270 |
product |
2539 |
M |
0 |
|
|
0 |
|
|
|
|
564 |
271 |
product |
2541 |
M |
0 |
|
|
0 |
|
|
|
|
565 |
272 |
product |
2542 |
M |
0 |
|
|
0 |
|
|
|
|
567 |
273 |
product |
2544 |
M |
0 |
|
|
0 |
|
|
|
|
569 |
274 |
product |
2546 |
M |
0 |
|
|
0 |
|
|
|
|
571 |
275 |
product |
2548 |
M |
0 |
|
|
0 |
|
|
|
|
573 |
276 |
product |
2550 |
M |
0 |
|
|
0 |
|
|
|
|
575 |
277 |
product |
2552 |
M |
0 |
|
|
0 |
|
|
|
|
577 |
278 |
product |
2554 |
M |
0 |
|
|
0 |
|
|
|
|
579 |
279 |
product |
2556 |
M |
0 |
|
|
0 |
|
|
|
|
581 |
280 |
product |
2558 |
M |
0 |
|
|
0 |
|
|
|
|
583 |
281 |
product |
2560 |
M |
0 |
|
|
0 |
|
|
|
|
585 |
282 |
product |
2562 |
M |
0 |
|
|
0 |
|
|
|
|
587 |
283 |
product |
2564 |
M |
0 |
|
|
0 |
|
|
|
|
589 |
284 |
product |
2566 |
M |
0 |
|
|
0 |
|
|
|
|
591 |
285 |
product |
2568 |
M |
0 |
|
|
0 |
|
|
|
|
593 |
286 |
product |
2570 |
M |
0 |
|
|
0 |
|
|
|
|
595 |
287 |
product |
2572 |
M |
0 |
|
|
0 |
|
|
|
|
597 |
288 |
product |
2574 |
M |
0 |
|
|
0 |
|
|
|
|
599 |
289 |
product |
2576 |
M |
0 |
|
|
0 |
|
|
|
|
601 |
290 |
product |
2578 |
M |
0 |
|
|
0 |
|
|
|
|
603 |
291 |
product |
2580 |
M |
0 |
|
|
0 |
|
|
|
|
605 |
292 |
product |
2582 |
M |
0 |
|
|
0 |
|
|
|
|
607 |
293 |
product |
2584 |
M |
0 |
|
|