Query time 0.00091
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` = 'M') and (`portal`.`q_images_links`.`object_id` in ('14690','14691','14692','14693','14694','14695','14696','14697','14698','14699','14700','14701','14702','14703','14704','14705')))",
"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 |
|
|
|
|
28598 |
14690 |
product |
30560 |
M |
0 |
|
|
0 |
|
|
|
|
28599 |
14691 |
product |
30561 |
M |
0 |
|
|
0 |
|
|
|
|
28600 |
14692 |
product |
30562 |
M |
0 |
|
|
0 |
|
|
|
|
28601 |
14693 |
product |
30563 |
M |
0 |
|
|
0 |
|
|
|
|
28602 |
14694 |
product |
30564 |
M |
0 |
|
|
0 |
|
|
|
|
28607 |
14699 |
product |
30569 |
M |
0 |
|
|
0 |
|
|
|
|
28608 |
14700 |
product |
30570 |
M |
0 |
|
|
0 |
|
|
|
|
28609 |
14701 |
product |
30571 |
M |
0 |
|
|
0 |
|
|
|
|
28610 |
14702 |
product |
30572 |
M |
0 |
|
|
0 |
|
|
|
|
28611 |
14703 |
product |
30573 |
M |
0 |
|
|
0 |
|
|
|
|
28612 |
14704 |
product |
30574 |
M |
0 |
|
|
0 |
|
|
|
|
28613 |
14705 |
product |
30575 |
M |
0 |
|
|
0 |
|
|
|
|
34845 |
14695 |
product |
36807 |
M |
0 |
|
|
0 |
|
|
|
|
34846 |
14696 |
product |
36808 |
M |
0 |
|
|
0 |
|
|
|
|
34847 |
14697 |
product |
36809 |
M |
1 |
|
|
0 |
|
|
|
|
68208 |
14698 |
product |
70159 |
M |
1 |
|
|