Query time 0.00100
JSON explain
{
"query_block": {
"select_id": 1,
"cost_info": {
"query_cost": "107.21"
},
"ordering_operation": {
"using_filesort": true,
"cost_info": {
"sort_cost": "19.00"
},
"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": 19,
"rows_produced_per_join": 19,
"filtered": "100.00",
"index_condition": "((`portal`.`q_images_links`.`object_type` = 'product') and (`portal`.`q_images_links`.`type` = 'A') and (`portal`.`q_images_links`.`object_id` in ('9947','9952','9956','9957','9964','9965','9966','6913','6915','6916','6917','6919','6920','6923','6924','6928')))",
"cost_info": {
"read_cost": "38.81",
"eval_cost": "3.80",
"prefix_cost": "42.61",
"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": 19,
"filtered": "100.00",
"cost_info": {
"read_cost": "19.00",
"eval_cost": "3.80",
"prefix_cost": "65.41",
"data_read_per_join": "14K"
},
"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": 19,
"filtered": "100.00",
"cost_info": {
"read_cost": "19.00",
"eval_cost": "3.80",
"prefix_cost": "88.21",
"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 |
|
|
|
|
13799 |
6915 |
product |
15761 |
A |
1 |
|
|
0 |
|
|
|
|
13804 |
6917 |
product |
15766 |
A |
1 |
|
|
0 |
|
|
|
|
13811 |
6919 |
product |
15773 |
A |
1 |
|
|
0 |
|
|
|
|
13818 |
6923 |
product |
15780 |
A |
1 |
|
|
0 |
|
|
|
|
13821 |
6924 |
product |
15783 |
A |
1 |
|
|
0 |
|
|
|
|
13831 |
6928 |
product |
15793 |
A |
1 |
|
|
0 |
|
|
|
|
19647 |
9964 |
product |
21609 |
A |
1 |
|
|
0 |
|
|
|
|
19649 |
9965 |
product |
21611 |
A |
1 |
|
|
0 |
|
|
|
|
19650 |
9966 |
product |
21612 |
A |
1 |
|
|
0 |
|
|
|
|
19660 |
9956 |
product |
21622 |
A |
1 |
|
|
0 |
|
|
|
|
20766 |
9952 |
product |
22728 |
A |
1 |
|
|
0 |
|
|
|
|
13801 |
6916 |
product |
15763 |
A |
2 |
|
|
0 |
|
|
|
|
13805 |
6917 |
product |
15767 |
A |
2 |
|
|
0 |
|
|
|
|
13819 |
6923 |
product |
15781 |
A |
2 |
|
|
0 |
|
|
|
|
13802 |
6916 |
product |
15764 |
A |
3 |
|
|
0 |
|
|
|
|
13812 |
6919 |
product |
15774 |
A |
3 |
|
|