Query time 0.00036
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "46.61"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "9.00"
},
"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": 9,
"rows_produced_per_join": 9,
"filtered": "100.00",
"index_condition": "((`maniamall_cscart`.`cscart_images_links`.`object_type` = 'product') and (`maniamall_cscart`.`cscart_images_links`.`type` = 'M') and (`maniamall_cscart`.`cscart_images_links`.`object_id` in (1026426,1026437,1026433,1026434,1026455,1026422,1026450,1026424,1026418)))",
"cost_info": {
"read_cost": "17.74",
"eval_cost": "0.90",
"prefix_cost": "18.64",
"data_read_per_join": "864"
},
"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": 9,
"filtered": "100.00",
"cost_info": {
"read_cost": "8.71",
"eval_cost": "0.90",
"prefix_cost": "28.25",
"data_read_per_join": "6K"
},
"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": 9,
"filtered": "100.00",
"cost_info": {
"read_cost": "8.46",
"eval_cost": "0.90",
"prefix_cost": "37.61",
"data_read_per_join": "5K"
},
"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 |
| 1581534 |
1026418 |
product |
0 |
1581771 |
M |
0 |
|
|
|
|
|
| 1581539 |
1026422 |
product |
0 |
1581776 |
M |
0 |
|
|
|
|
|
| 1581541 |
1026424 |
product |
0 |
1581778 |
M |
0 |
|
|
|
|
|
| 1581543 |
1026426 |
product |
0 |
1581780 |
M |
0 |
|
|
|
|
|
| 1581550 |
1026433 |
product |
0 |
1581787 |
M |
0 |
|
|
|
|
|
| 1581551 |
1026434 |
product |
0 |
1581788 |
M |
0 |
|
|
|
|
|
| 1581554 |
1026437 |
product |
0 |
1581791 |
M |
0 |
|
|
|
|
|
| 1581567 |
1026450 |
product |
0 |
1581804 |
M |
0 |
|
|
|
|
|
| 1581572 |
1026455 |
product |
0 |
1581809 |
M |
0 |
|
|
|
|
|