Query time 0.00097
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "52.21"
},
"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": "((`webmarco`.`cscart_images_links`.`object_type` = 'product') and (`webmarco`.`cscart_images_links`.`type` = 'M') and (`webmarco`.`cscart_images_links`.`object_id` in (431767,431768,431769,431770,431771,431772,431773,431774,431775)))",
"cost_info": {
"read_cost": "19.81",
"eval_cost": "1.80",
"prefix_cost": "21.61",
"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": "4",
"ref": [
"webmarco.cscart_images_links.detailed_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 9,
"filtered": "100.00",
"cost_info": {
"read_cost": "9.00",
"eval_cost": "1.80",
"prefix_cost": "32.41",
"data_read_per_join": "6K"
},
"used_columns": [
"image_id",
"image_path",
"image_x",
"image_y",
"is_high_res"
]
}
},
{
"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": "108",
"ref": [
"webmarco.cscart_images.image_id",
"const",
"const"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 9,
"filtered": "100.00",
"cost_info": {
"read_cost": "9.00",
"eval_cost": "1.80",
"prefix_cost": "43.21",
"data_read_per_join": "5K"
},
"used_columns": [
"object_id",
"description",
"lang_code",
"object_holder"
]
}
}
]
}
}
}
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 |
produts_img_600__36_.png |
600 |
600 |
N |
3871761 |
431767 |
product |
1543521 |
M |
0 |
|
1543521 |
0 |
produts_img_600__36_.png |
600 |
600 |
N |
3871762 |
431768 |
product |
1543521 |
M |
0 |
|
1543521 |
0 |
produts_img_600__36_.png |
600 |
600 |
N |
3871763 |
431769 |
product |
1543521 |
M |
0 |
|
1543521 |
0 |
produts_img_600__36_.png |
600 |
600 |
N |
3871764 |
431770 |
product |
1543521 |
M |
0 |
|
1543521 |
0 |
produts_img_600__36_.png |
600 |
600 |
N |
3871765 |
431771 |
product |
1543521 |
M |
0 |
|
1543521 |
0 |
produts_img_600__36_.png |
600 |
600 |
N |
3871766 |
431772 |
product |
1543521 |
M |
0 |
|
1543521 |
0 |
produts_img_600__36_.png |
600 |
600 |
N |
3871767 |
431773 |
product |
1543521 |
M |
0 |
|
1543521 |
0 |
produts_img_600__36_.png |
600 |
600 |
N |
3871768 |
431774 |
product |
1543521 |
M |
0 |
|
1543521 |
0 |
produts_img_600__36_.png |
600 |
600 |
N |
3871769 |
431775 |
product |
1543521 |
M |
0 |
|
1543521 |