Query time 0.00107
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "92.81"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "16.00"
},
"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": 16,
"rows_produced_per_join": 16,
"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 ('9725','9726','9727','9728','9729','9730','9731','9732','9733','9734','9735','9736','9737','9738','9739','9740')))",
"cost_info": {
"read_cost": "35.21",
"eval_cost": "3.20",
"prefix_cost": "38.41",
"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": 16,
"filtered": "100.00",
"cost_info": {
"read_cost": "16.00",
"eval_cost": "3.20",
"prefix_cost": "57.61",
"data_read_per_join": "12K"
},
"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": 16,
"filtered": "100.00",
"cost_info": {
"read_cost": "16.00",
"eval_cost": "3.20",
"prefix_cost": "76.81",
"data_read_per_join": "9K"
},
"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 |
|
|
|
|
20549 |
9725 |
product |
22511 |
M |
0 |
|
|
0 |
|
|
|
|
20550 |
9726 |
product |
22512 |
M |
0 |
|
|
0 |
|
|
|
|
20551 |
9727 |
product |
22513 |
M |
0 |
|
|
0 |
|
|
|
|
20552 |
9728 |
product |
22514 |
M |
0 |
|
|
0 |
|
|
|
|
20553 |
9729 |
product |
22515 |
M |
0 |
|
|
0 |
|
|
|
|
20554 |
9730 |
product |
22516 |
M |
0 |
|
|
0 |
|
|
|
|
20555 |
9731 |
product |
22517 |
M |
0 |
|
|
0 |
|
|
|
|
20556 |
9732 |
product |
22518 |
M |
0 |
|
|
0 |
|
|
|
|
20557 |
9733 |
product |
22519 |
M |
0 |
|
|
0 |
|
|
|
|
20558 |
9734 |
product |
22520 |
M |
0 |
|
|
0 |
|
|
|
|
20559 |
9735 |
product |
22521 |
M |
0 |
|
|
0 |
|
|
|
|
20560 |
9736 |
product |
22522 |
M |
0 |
|
|
0 |
|
|
|
|
20561 |
9737 |
product |
22523 |
M |
0 |
|
|
0 |
|
|
|
|
20562 |
9738 |
product |
22524 |
M |
0 |
|
|
0 |
|
|
|
|
20563 |
9739 |
product |
22525 |
M |
0 |
|
|
0 |
|
|
|
|
20564 |
9740 |
product |
22526 |
M |
0 |
|
|