Query time 0.00098
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "112.01"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "20.00"
},
"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": 20,
"rows_produced_per_join": 20,
"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 ('14755','14756','14757','14758','14759','14760','14761','14762','14763','14764','14765','14766','14767','14768','14769','14770')))",
"cost_info": {
"read_cost": "40.01",
"eval_cost": "4.00",
"prefix_cost": "44.01",
"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": 20,
"filtered": "100.00",
"cost_info": {
"read_cost": "20.00",
"eval_cost": "4.00",
"prefix_cost": "68.01",
"data_read_per_join": "15K"
},
"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": 20,
"filtered": "100.00",
"cost_info": {
"read_cost": "20.00",
"eval_cost": "4.00",
"prefix_cost": "92.01",
"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 |
|
|
|
|
28663 |
14755 |
product |
30625 |
M |
0 |
|
|
0 |
|
|
|
|
28664 |
14756 |
product |
30626 |
M |
0 |
|
|
0 |
|
|
|
|
28665 |
14757 |
product |
30627 |
M |
0 |
|
|
0 |
|
|
|
|
28667 |
14759 |
product |
30629 |
M |
0 |
|
|
0 |
|
|
|
|
28668 |
14760 |
product |
30630 |
M |
0 |
|
|
0 |
|
|
|
|
28669 |
14761 |
product |
30631 |
M |
0 |
|
|
0 |
|
|
|
|
28670 |
14762 |
product |
30632 |
M |
0 |
|
|
0 |
|
|
|
|
28671 |
14763 |
product |
30633 |
M |
0 |
|
|
0 |
|
|
|
|
28672 |
14764 |
product |
30634 |
M |
0 |
|
|
0 |
|
|
|
|
28673 |
14765 |
product |
30635 |
M |
0 |
|
|
0 |
|
|
|
|
28674 |
14766 |
product |
30636 |
M |
0 |
|
|
0 |
|
|
|
|
28675 |
14767 |
product |
30637 |
M |
0 |
|
|
0 |
|
|
|
|
28676 |
14768 |
product |
30638 |
M |
0 |
|
|
0 |
|
|
|
|
28677 |
14769 |
product |
30639 |
M |
0 |
|
|
0 |
|
|
|
|
28678 |
14770 |
product |
30640 |
M |
0 |
|
|
0 |
|
|
|
|
68220 |
14758 |
product |
70171 |
M |
1 |
|
|