Query time 0.00108
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 ('7826','7827','7828','7803','7804','7805','7806','7807','7808','7809','7810','7811','7812','7813','7814','7588')))",
"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 |
|
|
|
|
16213 |
7803 |
product |
18175 |
M |
0 |
|
|
0 |
|
|
|
|
16214 |
7804 |
product |
18176 |
M |
0 |
|
|
0 |
|
|
|
|
16215 |
7805 |
product |
18177 |
M |
0 |
|
|
0 |
|
|
|
|
16216 |
7806 |
product |
18178 |
M |
0 |
|
|
0 |
|
|
|
|
16217 |
7807 |
product |
18179 |
M |
0 |
|
|
0 |
|
|
|
|
16218 |
7808 |
product |
18180 |
M |
0 |
|
|
0 |
|
|
|
|
16219 |
7809 |
product |
18181 |
M |
0 |
|
|
0 |
|
|
|
|
16220 |
7810 |
product |
18182 |
M |
0 |
|
|
0 |
|
|
|
|
16221 |
7811 |
product |
18183 |
M |
0 |
|
|
0 |
|
|
|
|
16222 |
7812 |
product |
18184 |
M |
0 |
|
|
0 |
|
|
|
|
16223 |
7813 |
product |
18185 |
M |
0 |
|
|
0 |
|
|
|
|
16224 |
7814 |
product |
18186 |
M |
0 |
|
|
0 |
|
|
|
|
16245 |
7826 |
product |
18207 |
M |
0 |
|
|
0 |
|
|
|
|
16246 |
7827 |
product |
18208 |
M |
0 |
|
|
0 |
|
|
|
|
16247 |
7828 |
product |
18209 |
M |
0 |
|
|
0 |
|
|
|
|
16182 |
7588 |
product |
18144 |
M |
1 |
|
|