Query time 0.00097
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 ('14530','14531','14532','14533','14534','14535','14536','14537','14538','14539','14540','14541','14542','14543','14544','14545')))",
"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 |
|
|
|
|
28438 |
14530 |
product |
30400 |
M |
0 |
|
|
0 |
|
|
|
|
28439 |
14531 |
product |
30401 |
M |
0 |
|
|
0 |
|
|
|
|
28440 |
14532 |
product |
30402 |
M |
0 |
|
|
0 |
|
|
|
|
28441 |
14533 |
product |
30403 |
M |
0 |
|
|
0 |
|
|
|
|
28442 |
14534 |
product |
30404 |
M |
0 |
|
|
0 |
|
|
|
|
28443 |
14535 |
product |
30405 |
M |
0 |
|
|
0 |
|
|
|
|
28444 |
14536 |
product |
30406 |
M |
0 |
|
|
0 |
|
|
|
|
28445 |
14537 |
product |
30407 |
M |
0 |
|
|
0 |
|
|
|
|
28446 |
14538 |
product |
30408 |
M |
0 |
|
|
0 |
|
|
|
|
28447 |
14539 |
product |
30409 |
M |
0 |
|
|
0 |
|
|
|
|
28448 |
14540 |
product |
30410 |
M |
0 |
|
|
0 |
|
|
|
|
28449 |
14541 |
product |
30411 |
M |
0 |
|
|
0 |
|
|
|
|
28450 |
14542 |
product |
30412 |
M |
0 |
|
|
0 |
|
|
|
|
28451 |
14543 |
product |
30413 |
M |
0 |
|
|
0 |
|
|
|
|
28452 |
14544 |
product |
30414 |
M |
0 |
|
|
0 |
|
|
|
|
28453 |
14545 |
product |
30415 |
M |
0 |
|
|