Query time 0.00081
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "112.01"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "20.00"
},
"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": 20,
"rows_produced_per_join": 20,
"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 ('14642','14643','14644','14645','14646','14647','14648','14649','14650','14651','14652','14653','14654','14655','14656','14657')))",
"cost_info": {
"read_cost": "40.01",
"eval_cost": "4.00",
"prefix_cost": "44.01",
"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": 20,
"filtered": "100.00",
"cost_info": {
"read_cost": "20.00",
"eval_cost": "4.00",
"prefix_cost": "68.01",
"data_read_per_join": "15K"
},
"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": 20,
"filtered": "100.00",
"cost_info": {
"read_cost": "20.00",
"eval_cost": "4.00",
"prefix_cost": "92.01",
"data_read_per_join": "11K"
},
"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 |
|
|
|
|
28550 |
14642 |
product |
30512 |
M |
0 |
|
|
0 |
|
|
|
|
28551 |
14643 |
product |
30513 |
M |
0 |
|
|
0 |
|
|
|
|
28552 |
14644 |
product |
30514 |
M |
0 |
|
|
0 |
|
|
|
|
28553 |
14645 |
product |
30515 |
M |
0 |
|
|
0 |
|
|
|
|
28554 |
14646 |
product |
30516 |
M |
0 |
|
|
0 |
|
|
|
|
28555 |
14647 |
product |
30517 |
M |
0 |
|
|
0 |
|
|
|
|
28556 |
14648 |
product |
30518 |
M |
0 |
|
|
0 |
|
|
|
|
28557 |
14649 |
product |
30519 |
M |
0 |
|
|
0 |
|
|
|
|
28558 |
14650 |
product |
30520 |
M |
0 |
|
|
0 |
|
|
|
|
28559 |
14651 |
product |
30521 |
M |
0 |
|
|
0 |
|
|
|
|
28560 |
14652 |
product |
30522 |
M |
0 |
|
|
0 |
|
|
|
|
28561 |
14653 |
product |
30523 |
M |
0 |
|
|
0 |
|
|
|
|
28562 |
14654 |
product |
30524 |
M |
0 |
|
|
0 |
|
|
|
|
28563 |
14655 |
product |
30525 |
M |
0 |
|
|
0 |
|
|
|
|
28564 |
14656 |
product |
30526 |
M |
0 |
|
|
0 |
|
|
|
|
28565 |
14657 |
product |
30527 |
M |
0 |
|
|