Query time 0.00095
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` = 'A') and (`portal`.`q_images_links`.`object_id` in ('675','676','677','678','679','680','681','682','683','684','685','686','687','688','689','690')))",
"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 |
|
|
|
|
1533 |
675 |
product |
3509 |
A |
10 |
|
|
0 |
|
|
|
|
1535 |
676 |
product |
3511 |
A |
10 |
|
|
0 |
|
|
|
|
1537 |
677 |
product |
3513 |
A |
10 |
|
|
0 |
|
|
|
|
1539 |
678 |
product |
3515 |
A |
10 |
|
|
0 |
|
|
|
|
1541 |
679 |
product |
3517 |
A |
10 |
|
|
0 |
|
|
|
|
1543 |
680 |
product |
3519 |
A |
10 |
|
|
0 |
|
|
|
|
1545 |
681 |
product |
3521 |
A |
10 |
|
|
0 |
|
|
|
|
1547 |
682 |
product |
3523 |
A |
10 |
|
|
0 |
|
|
|
|
1549 |
683 |
product |
3525 |
A |
10 |
|
|
0 |
|
|
|
|
1551 |
684 |
product |
3527 |
A |
10 |
|
|
0 |
|
|
|
|
1553 |
685 |
product |
3529 |
A |
10 |
|
|
0 |
|
|
|
|
1555 |
686 |
product |
3531 |
A |
10 |
|
|
0 |
|
|
|
|
1557 |
687 |
product |
3533 |
A |
10 |
|
|
0 |
|
|
|
|
1559 |
688 |
product |
3535 |
A |
10 |
|
|
0 |
|
|
|
|
1561 |
689 |
product |
3537 |
A |
10 |
|
|
0 |
|
|
|
|
1563 |
690 |
product |
3539 |
A |
10 |
|
|