Query time 0.00105
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "107.21"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "19.00"
},
"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": 19,
"rows_produced_per_join": 19,
"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 ('32877','32878','30350','14312','14348','15787','16532','16533','16536','16541','16542','16543','16553','16554','16555','16556')))",
"cost_info": {
"read_cost": "38.81",
"eval_cost": "3.80",
"prefix_cost": "42.61",
"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": 19,
"filtered": "100.00",
"cost_info": {
"read_cost": "19.00",
"eval_cost": "3.80",
"prefix_cost": "65.41",
"data_read_per_join": "14K"
},
"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": 19,
"filtered": "100.00",
"cost_info": {
"read_cost": "19.00",
"eval_cost": "3.80",
"prefix_cost": "88.21",
"data_read_per_join": "11K"
},
"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 |
|
|
|
|
33118 |
16533 |
product |
35080 |
A |
1 |
|
|
0 |
|
|
|
|
33122 |
16555 |
product |
35084 |
A |
1 |
|
|
0 |
|
|
|
|
43992 |
32878 |
product |
45954 |
A |
1 |
|
|
0 |
|
|
|
|
33123 |
16555 |
product |
35085 |
A |
2 |
|
|
0 |
|
|
|
|
45506 |
32878 |
product |
47468 |
A |
5 |
|
|
0 |
|
|
|
|
45507 |
32878 |
product |
47469 |
A |
7 |
|
|
0 |
|
|
|
|
43989 |
32877 |
product |
45951 |
A |
10 |
|
|
0 |
|
|
|
|
45502 |
32877 |
product |
47464 |
A |
10 |
|
|
0 |
|
|
|
|
43990 |
32877 |
product |
45952 |
A |
20 |
|
|
0 |
|
|
|
|
45503 |
32877 |
product |
47465 |
A |
20 |
|
|
0 |
|
|
|
|
43991 |
32877 |
product |
45953 |
A |
30 |
|
|
0 |
|
|
|
|
45504 |
32877 |
product |
47466 |
A |
30 |
|
|