Query time 0.00109
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 ('9773','9774','9775','9776','9777','9778','9779','9780','9781','9782','9783','9784','9785','9786','9787','9788')))",
"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 |
|
|
|
|
20597 |
9773 |
product |
22559 |
M |
0 |
|
|
0 |
|
|
|
|
20598 |
9774 |
product |
22560 |
M |
0 |
|
|
0 |
|
|
|
|
20599 |
9775 |
product |
22561 |
M |
0 |
|
|
0 |
|
|
|
|
20602 |
9778 |
product |
22564 |
M |
0 |
|
|
0 |
|
|
|
|
20603 |
9779 |
product |
22565 |
M |
0 |
|
|
0 |
|
|
|
|
20604 |
9780 |
product |
22566 |
M |
0 |
|
|
0 |
|
|
|
|
20605 |
9781 |
product |
22567 |
M |
0 |
|
|
0 |
|
|
|
|
20606 |
9782 |
product |
22568 |
M |
0 |
|
|
0 |
|
|
|
|
20607 |
9783 |
product |
22569 |
M |
0 |
|
|
0 |
|
|
|
|
20608 |
9784 |
product |
22570 |
M |
0 |
|
|
0 |
|
|
|
|
20609 |
9785 |
product |
22571 |
M |
0 |
|
|
0 |
|
|
|
|
20610 |
9786 |
product |
22572 |
M |
0 |
|
|
0 |
|
|
|
|
20611 |
9787 |
product |
22573 |
M |
0 |
|
|
0 |
|
|
|
|
20612 |
9788 |
product |
22574 |
M |
0 |
|
|
0 |
|
|
|
|
25070 |
9776 |
product |
27032 |
M |
0 |
|
|
0 |
|
|
|
|
25073 |
9777 |
product |
27035 |
M |
0 |
|
|