Query time 0.00380
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "97.61"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "17.00"
},
"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": 17,
"rows_produced_per_join": 17,
"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 ('2915','2916','2917','2918','2919','2920','2921','2881','2882','2883','2884','2885','2886','2887','2888','2889')))",
"cost_info": {
"read_cost": "36.41",
"eval_cost": "3.40",
"prefix_cost": "39.81",
"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": 17,
"filtered": "100.00",
"cost_info": {
"read_cost": "17.00",
"eval_cost": "3.40",
"prefix_cost": "60.21",
"data_read_per_join": "13K"
},
"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": 17,
"filtered": "100.00",
"cost_info": {
"read_cost": "17.00",
"eval_cost": "3.40",
"prefix_cost": "80.61",
"data_read_per_join": "10K"
},
"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 |
|
|
|
|
82133 |
2881 |
product |
84076 |
A |
1 |
|
|
0 |
|
|
|
|
82134 |
2882 |
product |
84077 |
A |
1 |
|
|
0 |
|
|
|
|
82137 |
2885 |
product |
84081 |
A |
1 |
|
|
0 |
|
|
|
|
82138 |
2885 |
product |
84080 |
A |
1 |
|
|
0 |
|
|
|
|
82151 |
2886 |
product |
84094 |
A |
1 |
|
|
0 |
|
|
|
|
82152 |
2887 |
product |
84095 |
A |
1 |
|
|
0 |
|
|
|
|
82153 |
2888 |
product |
84096 |
A |
1 |
|
|
0 |
|
|
|
|
82350 |
2916 |
product |
84293 |
A |
1 |
|
|
0 |
|
|
|
|
82351 |
2917 |
product |
84294 |
A |
1 |
|
|
0 |
|
|
|
|
82352 |
2918 |
product |
84295 |
A |
1 |
|
|
0 |
|
|
|
|
82367 |
2920 |
product |
84310 |
A |
1 |
|
|
0 |
|
|
|
|
82368 |
2921 |
product |
84311 |
A |
1 |
|
|
0 |
|
|
|
|
82366 |
2919 |
product |
84309 |
A |
2 |
|
|
0 |
|
|
|
|
6316 |
2883 |
product |
8284 |
A |
10 |
|
|
0 |
|
|
|
|
82135 |
2883 |
product |
84078 |
A |
11 |
|
|