Query time 0.00098
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "116.81"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "21.00"
},
"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": 21,
"rows_produced_per_join": 21,
"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 ('35610','35611','35612','35613','35614','35615','35616','35617','35618','35619','35620','35621','35622','35623','35624','35625')))",
"cost_info": {
"read_cost": "41.21",
"eval_cost": "4.20",
"prefix_cost": "45.41",
"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": 21,
"filtered": "100.00",
"cost_info": {
"read_cost": "21.00",
"eval_cost": "4.20",
"prefix_cost": "70.61",
"data_read_per_join": "16K"
},
"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": 21,
"filtered": "100.00",
"cost_info": {
"read_cost": "21.00",
"eval_cost": "4.20",
"prefix_cost": "95.81",
"data_read_per_join": "12K"
},
"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 |
|
|
|
|
57572 |
35612 |
product |
59532 |
M |
0 |
|
|
0 |
|
|
|
|
57574 |
35613 |
product |
59534 |
M |
0 |
|
|
0 |
|
|
|
|
57582 |
35615 |
product |
59542 |
M |
0 |
|
|
0 |
|
|
|
|
57584 |
35616 |
product |
59544 |
M |
0 |
|
|
0 |
|
|
|
|
57586 |
35617 |
product |
59546 |
M |
0 |
|
|
0 |
|
|
|
|
57588 |
35618 |
product |
59548 |
M |
0 |
|
|
0 |
|
|
|
|
57592 |
35619 |
product |
59552 |
M |
0 |
|
|
0 |
|
|
|
|
57606 |
35620 |
product |
59566 |
M |
0 |
|
|
0 |
|
|
|
|
57609 |
35622 |
product |
59569 |
M |
0 |
|
|
0 |
|
|
|
|
57611 |
35624 |
product |
59571 |
M |
0 |
|
|
0 |
|
|
|
|
57612 |
35625 |
product |
59572 |
M |
0 |
|
|
0 |
|
|
|
|
57618 |
35621 |
product |
59578 |
M |
0 |
|
|
0 |
|
|
|
|
82885 |
35610 |
product |
84828 |
M |
0 |
|
|
0 |
|
|
|
|
57569 |
35611 |
product |
59529 |
M |
1 |
|
|
0 |
|
|
|
|
57577 |
35614 |
product |
59537 |
M |
1 |
|
|
0 |
|
|
|
|
57644 |
35623 |
product |
59604 |
M |
1 |
|
|