Query time 0.00098
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 ('12906','12930','12934','13002','13003','13013','13014','13015','13016','13017','13018','13019','13020','13021','13024','13025')))",
"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 |
|
|
|
|
26543 |
12906 |
product |
28505 |
M |
0 |
|
|
0 |
|
|
|
|
26567 |
12930 |
product |
28529 |
M |
0 |
|
|
0 |
|
|
|
|
26571 |
12934 |
product |
28533 |
M |
0 |
|
|
0 |
|
|
|
|
26640 |
13003 |
product |
28602 |
M |
0 |
|
|
0 |
|
|
|
|
26650 |
13013 |
product |
28612 |
M |
0 |
|
|
0 |
|
|
|
|
26651 |
13014 |
product |
28613 |
M |
0 |
|
|
0 |
|
|
|
|
26652 |
13015 |
product |
28614 |
M |
0 |
|
|
0 |
|
|
|
|
26654 |
13017 |
product |
28616 |
M |
0 |
|
|
0 |
|
|
|
|
26655 |
13018 |
product |
28617 |
M |
0 |
|
|
0 |
|
|
|
|
26656 |
13019 |
product |
28618 |
M |
0 |
|
|
0 |
|
|
|
|
26657 |
13020 |
product |
28619 |
M |
0 |
|
|
0 |
|
|
|
|
26658 |
13021 |
product |
28620 |
M |
0 |
|
|
0 |
|
|
|
|
26661 |
13024 |
product |
28623 |
M |
0 |
|
|
0 |
|
|
|
|
30719 |
13025 |
product |
32681 |
M |
0 |
|
|
0 |
|
|
|
|
30722 |
13002 |
product |
32684 |
M |
0 |
|
|
0 |
|
|
|
|
32761 |
13016 |
product |
34723 |
M |
0 |
|
|