Query time 0.00100
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "212.81"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "41.00"
},
"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": 41,
"rows_produced_per_join": 41,
"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 ('37502','37503','37504','37505','37506','37507','37508','37509','37510','37511','37512','37513','37514','37515','37516','37520')))",
"cost_info": {
"read_cost": "65.21",
"eval_cost": "8.20",
"prefix_cost": "73.41",
"data_read_per_join": "3K"
},
"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": 41,
"filtered": "100.00",
"cost_info": {
"read_cost": "41.00",
"eval_cost": "8.20",
"prefix_cost": "122.61",
"data_read_per_join": "31K"
},
"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": 41,
"filtered": "100.00",
"cost_info": {
"read_cost": "41.00",
"eval_cost": "8.20",
"prefix_cost": "171.81",
"data_read_per_join": "24K"
},
"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 |
|
|
|
|
62040 |
37508 |
product |
63996 |
M |
0 |
|
|
0 |
|
|
|
|
62041 |
37507 |
product |
63997 |
M |
0 |
|
|
0 |
|
|
|
|
62042 |
37506 |
product |
63998 |
M |
0 |
|
|
0 |
|
|
|
|
62043 |
37505 |
product |
63999 |
M |
0 |
|
|
0 |
|
|
|
|
62044 |
37504 |
product |
64000 |
M |
0 |
|
|
0 |
|
|
|
|
62047 |
37503 |
product |
64003 |
M |
0 |
|
|
0 |
|
|
|
|
62048 |
37502 |
product |
64004 |
M |
0 |
|
|
0 |
|
|
|
|
62330 |
37509 |
product |
64286 |
M |
0 |
|
|
0 |
|
|
|
|
62331 |
37510 |
product |
64287 |
M |
0 |
|
|
0 |
|
|
|
|
62332 |
37511 |
product |
64288 |
M |
0 |
|
|
0 |
|
|
|
|
62334 |
37512 |
product |
64290 |
M |
0 |
|
|
0 |
|
|
|
|
62916 |
37513 |
product |
64872 |
M |
0 |
|
|
0 |
|
|
|
|
63003 |
37515 |
product |
64959 |
M |
0 |
|
|
0 |
|
|
|
|
63004 |
37516 |
product |
64960 |
M |
0 |
|
|
0 |
|
|
|
|
67544 |
37520 |
product |
69495 |
M |
0 |
|
|
0 |
|
|
|
|
67545 |
37520 |
product |
69496 |
M |
0 |
|
|
0 |
|
|
|
|
62899 |
37514 |
product |
64855 |
M |
2 |
|
|