Query time 0.00087
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "260.81"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "51.00"
},
"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": 51,
"rows_produced_per_join": 51,
"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 ('29875','29876','29877','29878','29879','29880','29881','29882','29883','29884','29885','29886','29887','29888','29889','29890')))",
"cost_info": {
"read_cost": "77.21",
"eval_cost": "10.20",
"prefix_cost": "87.41",
"data_read_per_join": "4K"
},
"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": 51,
"filtered": "100.00",
"cost_info": {
"read_cost": "51.00",
"eval_cost": "10.20",
"prefix_cost": "148.61",
"data_read_per_join": "39K"
},
"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": 51,
"filtered": "100.00",
"cost_info": {
"read_cost": "51.00",
"eval_cost": "10.20",
"prefix_cost": "209.81",
"data_read_per_join": "30K"
},
"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 |
|
|
|
|
47346 |
29885 |
product |
49308 |
M |
0 |
|
|
0 |
|
|
|
|
47347 |
29884 |
product |
49309 |
M |
0 |
|
|
0 |
|
|
|
|
47348 |
29883 |
product |
49310 |
M |
0 |
|
|
0 |
|
|
|
|
47350 |
29882 |
product |
49312 |
M |
0 |
|
|
0 |
|
|
|
|
47352 |
29881 |
product |
49314 |
M |
0 |
|
|
0 |
|
|
|
|
47353 |
29880 |
product |
49315 |
M |
0 |
|
|
0 |
|
|
|
|
47354 |
29879 |
product |
49316 |
M |
0 |
|
|
0 |
|
|
|
|
47355 |
29878 |
product |
49317 |
M |
0 |
|
|
0 |
|
|
|
|
47357 |
29877 |
product |
49319 |
M |
0 |
|
|
0 |
|
|
|
|
47358 |
29876 |
product |
49320 |
M |
0 |
|
|
0 |
|
|
|
|
47360 |
29875 |
product |
49322 |
M |
0 |
|
|
0 |
|
|
|
|
47433 |
29890 |
product |
49394 |
M |
0 |
|
|
0 |
|
|
|
|
47726 |
29889 |
product |
49687 |
M |
0 |
|
|
0 |
|
|
|
|
47728 |
29888 |
product |
49689 |
M |
0 |
|
|
0 |
|
|
|
|
47729 |
29887 |
product |
49690 |
M |
0 |
|
|
0 |
|
|
|
|
82501 |
29886 |
product |
84444 |
M |
0 |
|
|