Query time 0.00090
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 ('13077','10530','10529','10524','10521','8383','8384','8385','8386','8387','8388','8389','8390','8391','8392','8393')))",
"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 |
|
|
|
|
17699 |
8387 |
product |
19661 |
M |
0 |
|
|
0 |
|
|
|
|
17702 |
8388 |
product |
19664 |
M |
0 |
|
|
0 |
|
|
|
|
17705 |
8389 |
product |
19667 |
M |
0 |
|
|
0 |
|
|
|
|
17708 |
8390 |
product |
19670 |
M |
0 |
|
|
0 |
|
|
|
|
17711 |
8391 |
product |
19673 |
M |
0 |
|
|
0 |
|
|
|
|
17714 |
8392 |
product |
19676 |
M |
0 |
|
|
0 |
|
|
|
|
17717 |
8393 |
product |
19679 |
M |
0 |
|
|
0 |
|
|
|
|
17746 |
8383 |
product |
19708 |
M |
0 |
|
|
0 |
|
|
|
|
17749 |
8384 |
product |
19711 |
M |
0 |
|
|
0 |
|
|
|
|
17752 |
8385 |
product |
19714 |
M |
0 |
|
|
0 |
|
|
|
|
18730 |
8386 |
product |
20692 |
M |
0 |
|
|
0 |
|
|
|
|
21881 |
10529 |
product |
23843 |
M |
0 |
|
|
0 |
|
|
|
|
21884 |
10530 |
product |
23846 |
M |
0 |
|
|
0 |
|
|
|
|
26713 |
13077 |
product |
28675 |
M |
0 |
|
|
0 |
|
|
|
|
85053 |
10521 |
product |
53618 |
M |
0 |
|
|
0 |
|
|
|
|
85057 |
10524 |
product |
23839 |
M |
0 |
|
|