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 ('2563','2564','2565','2566','2251','2252','2253','2254','2255','2256','2257','2258','2259','2260','2261','2221')))",
"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 |
|
|
|
|
5197 |
2221 |
product |
7171 |
M |
0 |
|
|
0 |
|
|
|
|
5252 |
2251 |
product |
7226 |
M |
0 |
|
|
0 |
|
|
|
|
5259 |
2252 |
product |
7233 |
M |
0 |
|
|
0 |
|
|
|
|
5290 |
2253 |
product |
7264 |
M |
0 |
|
|
0 |
|
|
|
|
5291 |
2254 |
product |
7265 |
M |
0 |
|
|
0 |
|
|
|
|
5293 |
2261 |
product |
7267 |
M |
0 |
|
|
0 |
|
|
|
|
5299 |
2260 |
product |
7273 |
M |
0 |
|
|
0 |
|
|
|
|
5314 |
2259 |
product |
7288 |
M |
0 |
|
|
0 |
|
|
|
|
5331 |
2258 |
product |
7305 |
M |
0 |
|
|
0 |
|
|
|
|
5333 |
2257 |
product |
7307 |
M |
0 |
|
|
0 |
|
|
|
|
5351 |
2256 |
product |
7325 |
M |
0 |
|
|
0 |
|
|
|
|
5365 |
2255 |
product |
7339 |
M |
0 |
|
|
0 |
|
|
|
|
5891 |
2563 |
product |
7862 |
M |
0 |
|
|
0 |
|
|
|
|
5892 |
2564 |
product |
7863 |
M |
0 |
|
|
0 |
|
|
|
|
5893 |
2565 |
product |
7864 |
M |
0 |
|
|
0 |
|
|
|
|
5894 |
2566 |
product |
7865 |
M |
0 |
|
|