Query time 0.00045
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "56.60"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "12.00"
},
"nested_loop": [
{
"table": {
"table_name": "cscart_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": 12,
"rows_produced_per_join": 12,
"filtered": "100.00",
"index_condition": "((`maniamall_cscart`.`cscart_images_links`.`object_type` = 'product') and (`maniamall_cscart`.`cscart_images_links`.`type` = 'A') and (`maniamall_cscart`.`cscart_images_links`.`object_id` in (444124,1700036,2096858,2310524)))",
"cost_info": {
"read_cost": "17.06",
"eval_cost": "1.20",
"prefix_cost": "18.26",
"data_read_per_join": "1K"
},
"used_columns": [
"pair_id",
"object_id",
"object_type",
"image_id",
"detailed_id",
"type",
"position"
]
}
},
{
"table": {
"table_name": "cscart_images",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"image_id"
],
"key_length": "3",
"ref": [
"maniamall_cscart.cscart_images_links.image_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 12,
"filtered": "100.00",
"cost_info": {
"read_cost": "11.98",
"eval_cost": "1.20",
"prefix_cost": "31.44",
"data_read_per_join": "9K"
},
"used_columns": [
"image_id",
"image_path",
"image_x",
"image_y"
],
"attached_condition": "<if>(is_not_null_compl(cscart_images), (`maniamall_cscart`.`cscart_images_links`.`image_id` = `maniamall_cscart`.`cscart_images`.`image_id`), true)"
}
},
{
"table": {
"table_name": "cscart_common_descriptions",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"object_id",
"lang_code",
"object_holder"
],
"key_length": "107",
"ref": [
"maniamall_cscart.cscart_images.image_id",
"const",
"const"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 12,
"filtered": "100.00",
"cost_info": {
"read_cost": "11.96",
"eval_cost": "1.20",
"prefix_cost": "44.60",
"data_read_per_join": "7K"
},
"used_columns": [
"object_id",
"description",
"lang_code",
"object_holder"
],
"attached_condition": "<if>(is_not_null_compl(cscart_common_descriptions), (`maniamall_cscart`.`cscart_common_descriptions`.`object_id` = `maniamall_cscart`.`cscart_images`.`image_id`), true)"
}
}
]
}
}
}
Result
| pair_id |
object_id |
object_type |
image_id |
detailed_id |
type |
position |
image_path |
alt |
image_x |
image_y |
images_image_id |
| 704518 |
444124 |
product |
0 |
704755 |
A |
0 |
|
|
|
|
|
| 3816721 |
1700036 |
product |
0 |
3816974 |
A |
0 |
|
|
|
|
|
| 3816722 |
1700036 |
product |
0 |
3816975 |
A |
0 |
|
|
|
|
|
| 3816723 |
1700036 |
product |
0 |
3816976 |
A |
0 |
|
|
|
|
|
| 3816724 |
1700036 |
product |
0 |
3816977 |
A |
0 |
|
|
|
|
|
| 5137907 |
2096858 |
product |
0 |
5138160 |
A |
0 |
|
|
|
|
|
| 5137908 |
2096858 |
product |
0 |
5138161 |
A |
0 |
|
|
|
|
|
| 5137909 |
2096858 |
product |
0 |
5138162 |
A |
0 |
|
|
|
|
|
| 5939973 |
2310524 |
product |
0 |
5940226 |
A |
0 |
|
|
|
|
|
| 5939974 |
2310524 |
product |
0 |
5940227 |
A |
0 |
|
|
|
|
|
| 5939975 |
2310524 |
product |
0 |
5940228 |
A |
0 |
|
|
|
|
|
| 5939976 |
2310524 |
product |
0 |
5940229 |
A |
0 |
|
|
|
|
|