Query time 0.00114
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "92.81"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "16.00"
},
"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": 16,
"rows_produced_per_join": 16,
"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 ('2393','2394','2396','2397','2398','2399','2403','2020','2032','2042','2058','1848','1856','1868','1878','1886')))",
"cost_info": {
"read_cost": "35.21",
"eval_cost": "3.20",
"prefix_cost": "38.41",
"data_read_per_join": "1K"
},
"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": 16,
"filtered": "100.00",
"cost_info": {
"read_cost": "16.00",
"eval_cost": "3.20",
"prefix_cost": "57.61",
"data_read_per_join": "12K"
},
"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": 16,
"filtered": "100.00",
"cost_info": {
"read_cost": "16.00",
"eval_cost": "3.20",
"prefix_cost": "76.81",
"data_read_per_join": "9K"
},
"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 |
|
|
|
|
4854 |
2058 |
product |
6828 |
M |
0 |
|
|
0 |
|
|
|
|
5615 |
2393 |
product |
7586 |
M |
0 |
|
|
0 |
|
|
|
|
5620 |
2397 |
product |
7591 |
M |
0 |
|
|
0 |
|
|
|
|
5623 |
2398 |
product |
7594 |
M |
0 |
|
|
0 |
|
|
|
|
5626 |
2399 |
product |
7597 |
M |
0 |
|
|
0 |
|
|
|
|
5642 |
2403 |
product |
7613 |
M |
0 |
|
|
0 |
|
|
|
|
8257 |
2396 |
product |
10222 |
M |
0 |
|
|
0 |
|
|
|
|
83446 |
1848 |
product |
6862 |
M |
0 |
|
|
0 |
|
|
|
|
83450 |
1856 |
product |
39647 |
M |
0 |
|
|
0 |
|
|
|
|
83451 |
2020 |
product |
6908 |
M |
0 |
|
|
0 |
|
|
|
|
83456 |
1868 |
product |
6943 |
M |
0 |
|
|
0 |
|
|
|
|
83460 |
1878 |
product |
6971 |
M |
0 |
|
|
0 |
|
|
|
|
83464 |
1886 |
product |
7052 |
M |
0 |
|
|
0 |
|
|
|
|
83520 |
2032 |
product |
7241 |
M |
0 |
|
|
0 |
|
|
|
|
83554 |
2042 |
product |
7313 |
M |
0 |
|
|
0 |
|
|
|
|
83587 |
2394 |
product |
83509 |
M |
0 |
|
|