Query time 0.00097
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "16.56"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "7.00"
},
"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": 7,
"rows_produced_per_join": 7,
"filtered": "100.00",
"index_condition": "((`cscartdb`.`cscart_images_links`.`object_type` = 'product') and (`cscartdb`.`cscart_images_links`.`type` = 'M') and (`cscartdb`.`cscart_images_links`.`object_id` in (31971,65868,65869,65870,65871,65872)))",
"cost_info": {
"read_cost": "3.96",
"eval_cost": "0.70",
"prefix_cost": "4.66",
"data_read_per_join": "728"
},
"used_columns": [
"pair_id",
"object_id",
"object_type",
"image_id",
"detailed_id",
"type",
"position",
"nipple"
]
}
},
{
"table": {
"table_name": "cscart_images",
"access_type": "eq_ref",
"possible_keys": [
"PRIMARY"
],
"key": "PRIMARY",
"used_key_parts": [
"image_id"
],
"key_length": "4",
"ref": [
"cscartdb.cscart_images_links.detailed_id"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 7,
"filtered": "100.00",
"cost_info": {
"read_cost": "1.75",
"eval_cost": "0.70",
"prefix_cost": "7.11",
"data_read_per_join": "5K"
},
"used_columns": [
"image_id",
"image_path",
"image_x",
"image_y",
"duplicated"
]
}
},
{
"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": [
"cscartdb.cscart_images.image_id",
"const",
"const"
],
"rows_examined_per_scan": 1,
"rows_produced_per_join": 7,
"filtered": "100.00",
"cost_info": {
"read_cost": "1.75",
"eval_cost": "0.70",
"prefix_cost": "9.56",
"data_read_per_join": "4K"
},
"used_columns": [
"object_id",
"description",
"lang_code",
"object_holder"
]
}
}
]
}
}
}
Result
image_id |
image_path |
image_x |
image_y |
duplicated |
pair_id |
object_id |
object_type |
detailed_id |
type |
position |
nipple |
alt |
images_image_id |
0 |
il_fullxfull.3366801918_7ckc.jpg |
3000 |
2250 |
|
235280 |
31971 |
product |
149804 |
M |
0 |
|
|
149804 |
0 |
il_fullxfull.3366801918_7ckc.jpg |
3000 |
2250 |
|
367542 |
65868 |
product |
149804 |
M |
0 |
|
|
149804 |
0 |
il_fullxfull.3366801918_7ckc.jpg |
3000 |
2250 |
|
367543 |
65869 |
product |
149804 |
M |
0 |
|
|
149804 |
0 |
il_fullxfull.3366801918_7ckc.jpg |
3000 |
2250 |
|
367544 |
65870 |
product |
149804 |
M |
0 |
|
|
149804 |
0 |
il_fullxfull.3366801918_7ckc.jpg |
3000 |
2250 |
|
367545 |
65871 |
product |
149804 |
M |
0 |
|
|
149804 |
0 |
il_fullxfull.3366801918_7ckc.jpg |
3000 |
2250 |
|
367546 |
65872 |
product |
149804 |
M |
0 |
|
|
149804 |