Query time 0.00098
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "126.41"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "23.00"
},
"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": 23,
"rows_produced_per_join": 23,
"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 ('346','347','348','349','350','351','352','354','355','356','357','358','359','360','361','362')))",
"cost_info": {
"read_cost": "43.61",
"eval_cost": "4.60",
"prefix_cost": "48.21",
"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.image_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 23,
"filtered": "100.00",
"cost_info": {
"read_cost": "23.00",
"eval_cost": "4.60",
"prefix_cost": "75.81",
"data_read_per_join": "17K"
},
"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": 23,
"filtered": "100.00",
"cost_info": {
"read_cost": "23.00",
"eval_cost": "4.60",
"prefix_cost": "103.41",
"data_read_per_join": "13K"
},
"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 |
|
|
|
|
715 |
347 |
product |
2692 |
M |
0 |
|
|
0 |
|
|
|
|
717 |
348 |
product |
2694 |
M |
0 |
|
|
0 |
|
|
|
|
719 |
349 |
product |
2696 |
M |
0 |
|
|
0 |
|
|
|
|
721 |
350 |
product |
2698 |
M |
0 |
|
|
0 |
|
|
|
|
723 |
351 |
product |
2700 |
M |
0 |
|
|
0 |
|
|
|
|
725 |
352 |
product |
2702 |
M |
0 |
|
|
0 |
|
|
|
|
729 |
354 |
product |
2706 |
M |
0 |
|
|
0 |
|
|
|
|
733 |
356 |
product |
2710 |
M |
0 |
|
|
0 |
|
|
|
|
737 |
358 |
product |
2714 |
M |
0 |
|
|
0 |
|
|
|
|
739 |
359 |
product |
2716 |
M |
0 |
|
|
0 |
|
|
|
|
741 |
360 |
product |
2718 |
M |
0 |
|
|
0 |
|
|
|
|
743 |
361 |
product |
2720 |
M |
0 |
|
|
0 |
|
|
|
|
745 |
362 |
product |
2722 |
M |
0 |
|
|
0 |
|
|
|
|
81468 |
357 |
product |
83411 |
M |
0 |
|
|
0 |
|
|
|
|
81512 |
355 |
product |
83455 |
M |
0 |
|
|
0 |
|
|
|
|
83121 |
346 |
product |
85064 |
M |
0 |
|
|